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  • FAQ | Hays Fluid Controls

    FAQ Find answers to common questions on services, pricing, and installation. If you can't find your answer please reach out. We look forward to finding a simple solution. SHIPPING & DELIVERY SHIPPING & DELIVERY PRICING & ORDERS INSTALLATION AUTOMATIC BALANCING CONNECTION KITS COMPONENTS ATC VALVES SHIPPING & DELIVERY Can I Quick Ship certain products? Yes. Hays offers two Expedite programs - 24 hr and 48 hr Expedite - which shorten production lead time on some HVAC and Industrial products. Please call Customer Service at 704-922-9565 (Toll free: 800-354-4297), or send your request via email: orders@haysfluidcontrols.com . Our Expedite program guide with full details can be found here: Expedited Production Program How much will freight be? Can you Quote products with freight costs included? Hays does not quote freight due to the different weights and packaging of our products. What are normal lead times? Our standard lead time for most hose kits, piping packages, and Mesurflo® valves is 5 business days to build and ship; however, size, volume, and type of components on the order could impact that. For exact lead times, we recommend contacting Customer Service ( orders@haysfluidcontrols.com or at 800-354-4297) prior to placing your order. Where are weights listed so I can quote shipping costs to my customer? As weights vary based on connections and sizes for different product offerings, please call Customer Service ( quotes@haysfluidcontrols.com or at 800-354-4297) to get an estimate for weights on any specific order. PRICING & ORDERS PRICING & ORDERS Can I order from you? Our customers can order directly from us. We have several distributors located in almost every state to assist other requests. How do I find pricing? We work hand-in-hand with distributors around the country, for consumer pricing please reach out to one of these valued partners. If you are a distributor looking to carry Hays products, please reach out to info@haysfluidcontrols.com . Where can I find a list of distributors? We have several Industrial and HVAC manufacturers’ representatives and distributors located in different states. Please reach out to Customer Service ( quotes@haysfluidcontrols.com or at 800-354-4297) and they can help find a distributor in your area. Where can I find shipping info for an order I already placed? You can use our website under Tools tab and click on “Get Shipping Status” or click on this link to check on the status of your order. You will need to have your Sales Order (SO) number or Purchase Order (PO) number depending on shipping carrier in order to track the shipping status. You can also call us at 704-922-9565 or toll free # 800-354-4297 or email us at: orders@haysfluidcontrols.com with your PO number. What information do you need to quote a hose kit or piping package? To timely quote the Hose Kit or Piping Package, Hays need to know the basic information such as design flow rates, sizes, connection type, and others. If available the engineering specifications, piping details, and equipment schedules and submittals provide the information required to provide a proposal. In order to make life easier, we created Quote forms that can be completed with all pertinent information and sent to Hays to process the quote request faster. These Quote Forms are located in the Downloads section of our website. Request for Quote Forms can be found on our website at the following locations: Hose Kits 2-way Piping Package 3-way Piping package Can I convert the quote that I initiated using Hays Online Price Guide (OPG) tool into an order online from the website? Yes, you can use OPG to convert the quote into an order. If preferred, you can also do the same by contacting Hays Fluid Controls Customer Service team at 800-354-4297, or emailing us at: orders@haysfluidcontrols.com Where can I find warranty terms and conditions for Hays Fluid Controls products? Please visit our Downloads page and search Terms & Conditions. Alternatively, navigate to the Terms & Conditions page via navigation. INSTALLATION INSTALLATION Does Hays provide Flow versus Pressure drop charts for Manual Balancing Valves to balance the flow in the system? Yes, the flow versus pressure drop charts for Manual Balancing Valves sold by Hays are available on our Downloads page. our website. You can also follow the direct links below . 1/2" Venturi Manual Balance Valve (PDF - 84KB) 3/4" Venturi Manual Balance Valve (PDF - 83KB) 1" Venturi Manual Balance Valve (PDF - 82KB) 1-1/4" Venturi Manual Balance Valve (PDF - 82KB) 1-1/2" Venturi Manual Balance Valve (PDF - 83KB) 2" Venturi Manual Balance Valve (PDF - 83KB) Can I substitute a locally available washer in the braided hose connection? Yes but doing so will void Hays warranty. The washer used in the hose connection is a fiber washer. While a standard washer may fit in the assembly, it is always recommended to contact Customer Service (704-922-9565, toll free: 800-354-4297) to assist you with ordering additional gaskets from Hays whenever needed. Is there a special tool to remove the coupling nut for changing the diaphragm in Automatic Inline Balancing Valves? There is no special tool required for removing the Coupling nut on the Automatic Inline Balancing Valves (25E0, 2510, 2513, 2520). Is there a right way to install the diaphragm (rubber disk) inside the Hays Automatic Balancing Valves? The diaphragm (rubber disk) is not directional, as long as it is mounted up or down and not sideways, it will function to design. Please refer to Hays Fluid Controls Technical Videos under Downloads tab on our website for Internal flow cartridge replacement instructions in some automatic balancing valve bodies. Can Hays Automatic Balancing valves be mounted in any attitude or orientation? Yes, the Hays Automatic Balancing Valves can be mounted in any orientation. What valve size fits a coil connection OD of 5/8", 7/8", 1-1/8", 1-3/8", and 1-5/8" and so on? The size selection for coils can get trickier at times. The valves design for these coils are typically Female SWT and are soldered on the OD of coil connection. Please refer to the table below for selecting the Nominal size of Automatic Balancing Valve Sizes. Example: Select ½” FSWT connection for Hays Valves for coil dimensions with 5/8” OD and ½” ID. Copper Tubing Dimensions for FSWT connection: Valve Nominal Size (in) connects with Actual Outside Diameter (in) 1/2 = 5/8 3/4 = 7/8 1 = 1-1/8 1-1/4 = 1-3/8 1-1/2 = 1-5/8 2 = 2-1/8 COMPONENTS COMPONENTS What is the effect of Boiler chemicals (alkaline, solvents) on Hays Components? Most of the Hays components are compatible with standard boiler chemicals. For specific chemical compatibility information, please call Customer Service (704-922-9565, toll free: 800-354-4297) or send your inquiry via our Contact page . Are the Components compatible with steam systems? That's a tough one to answer without more detail. Please contact Customer Service ( quotes@haysfluidcontrols or by calling 800-354-4297) for information on specific components that can be used for Steam systems. CONNECTION KITS CONNECTION KITS What is the difference between a Piping Package and a Hose Kit? Piping packages and hose kits both share many common parts. The most significant difference between them is hose kits have a swivel end fitting and piping packages have a union fitting to aid in assembly. However, Hays also offers Flexible Piping packages with hoses that adds more options for customization based on customer needs. What is the Safety Factor Hays uses for Burst Testing their Hoses? Hays uses 4 times the Working Pressure to gauge their Burst testing pressure for hoses. For example, hoses supplied from Hays have 400 PSI working pressure and 1600 PSI Burst test pressure. Why is the Hays Mesurmeter™ better in Hose Kits than a Circuit Setter? The Mesurmeter™ takes advantage of a true venturi design, allowing more accurate flow measurement than the competitor's Circuit Setter. What is the female swivel thread type on Hays hoses? The female swivel on Hays hose is British Straight Pipe Thread (BSPT). If your situation calls for an alternative, BSPT Adapters are available for all other thread types; American straight thread, NPT, NPSH, JIC, and more. What is the comparable strength of the DOFI material to competitor's stainless steel? Please refer to the Gold Standard Brochure for more details. For any additional information, call Customer Service ( quotes@haysfluidcontrols.com or by calling 800-354-4297) to learn more about Hays products and how their technology is superior than competition. Are the female swivel hose threads compatible with American straight thread? Not directly but there is always a solution. Our female swivels are British Straight Pipe Thread (BSPT), not directly compatible with American straight thread. That said, BSPT Adapters are available to transition to American straight threads, NPT, NPSH, JIC, and other thread types. If sizes over 2” are available on Hose Kits, why aren't they published? Some of the configurations are not available under standard lead time or may not be stocked component and so it’s always advantageous to contact our Customer Service at 800-354-4297 or email us at quotes@haysfluidcontrols.com to assist you with the best engineered configuration for your needs. What is the default Mesh size for Strainer on Hays Packages? Can the mesh size be altered? The strainer on Hays packages comes with 20 Mesh size as default selection. Hays do offer other mesh sizes upon customer request. AUTOMATIC BALANCING AUTOMATIC BALANCING SOLUTIONS How do I "set" a valve that is automatic? Can I adjust the flow within the same valve? Hays Automatic Balancing Valves are designed to maintain one specific design flow rate value constant within published operating pressure differential range. The design flow rate is not field adjustable, but you can alter internals in most of the Hays Automatic Balancing Valves to achieve a different flow rate if the correct design flow rate was not picked during selection. Contact Hays Customer Service ( quotes@haysfluidcontrols.com or by calling 800-354-4297) for more details. How can I tell what the flow rate is on Hays Automatic Balancing valve installed in the system? Flow rate data is on the information label on the valve. In the event the label is not legible, use common flow measurement devices to determine the flow. Does Hays offer Automatic Balancing Valves in Bronze or Stainless Steel material? Hays offers Automatic Balancing Valves in Bronze C83600 and 316 Stainless Steel body material. You can find more information on our Marine Applications pages. How do the Internals of Hays Automatic Balancing Valves work? Here are some reference to understand the functionality of internals (also referred as Hays Mesurflo® technology) works. • Link to YouTube Video • Gold Standard Brochure • Hays Automatic Balancing Valves Brochure (refer to Page 5) Will Hays Automatic Balancing valves work with refrigerants? Hays Fluid Controls valves are designed to work with water and water glycol mixtures. At present we do not offer product to be used with refrigerants. Are Hays Automatic Balancing Valves compatible with commonly used chemicals for HVAC systems? Hays Automatic Balancing Valves are fully compatible with some known chemicals used for flushing the coil in HVAC systems such as Sodium Nitrate, Sodium Hydroxide, Borates, and Tolyltriazole. However, they are NOT compatible with Sodium Salts, Decahydrates, Sodium Saltwater, Tetras, Chlorine, or Bromines that are not commonly used for HVAC system. For more information on Chemical Compatibility with Hays product offerings, please call Customer Service (704-922-9565, toll free: 800-354-4297) or send your inquiry via our Contact page. Does Hays offer Automatic Balancing Valves that can be used for Domestic Hot Water system? Yes, Hays offer NSF/ANSI 61, 372 Certified 2517LF Lead Free Automatic Balancing Valves that can be used for balancing flows in Domestic Hot Water System. Link to 2517LF What function does the Mesurflo® technology perform in a hydronic system? The Mesurflo® technology maintains the flow rate at a pre-determined design flow rate with respect to dynamic pressure variations in the system within the specified operating pressure differential range. What is the difference between 2510 model and 2513 model in Automatic Balancing Valve Product selection? 2510 and 2513 are both Automatic Inline Balancing Valves but 2510 has Pressure/Temperature ports whereas 2513 does not. This Pressure/Temperature ports are used during troubleshooting and at times just to measure system conditions at any given time. Does Hays offer combination of Isolation Ball Valve and Automatic Balancing Valve, both integrated into one valve? Yes, Hays offers variety of integrated combo designs in different sizes and connections such as 2514, 2515, 2516, 2519, 2524 and 2528 as Automatic Y-Ball Balancing Valves. If you had an Automatic Balancing valve in your possession with label not legible, how would you determine its flow rate? The flow rate is determined by the combination of the orifice plate and the diaphragm combination. The orifice plate has a letter on it while the diaphragm has a colored indicator on one side. A matrix of the combinations with corresponding flow rates can be made available or please call Customer Service (704-922-9565, toll free: 800-354-4297) for more support to determine the flow rate. What is the accuracy range of Hays Automatic Balancing Valve? The design flow accuracy of Hays Automatic Balancing Valves is ± 10% of the nominal flow rate. This is equivalent to +/- 5% heat transfer effectiveness. More information on Mesurflo Automatic Balancing Valve tolerance can be found in our Gold Standard Brochure . Does Hays Automatic Balancing valves require straight lengths of straight pipe upstream or downstream for proper operation? No, Hays Automatic Balancing Valves do not require straight length of pipe before or after for proper operation. ATC VALVES ACTUATED TEMPERATURE CONTROL What ATC suppliers do you use? Hays currently uses Schneider Electric and Belimo Control Valve manufacturers but can source other brands based on customer requests. What type of ATCs do Hays currently offer in their product line? Hays offers the following basic types of ATCs on their packages: • On/Off Control – also referred as 2-position or Zone Valve • Floating Control – also referred as 3-point control • Proportional Control – also referred as Modulating control Where can I find the wiring diagram for ATC? Please contact Hays Customer Service quotes@haysfluidcontrols.com or by calling 800-354-4297 with specific ATC model quoted or selected for the project and we will be happy to provide additional details including wiring diagram for every specific model sourced from Hays. Does Hays offer Normally Open or Normally Closed selection for ATCs on Hose Kits? Yes Hays offers both options for ATCs on Hose Kits, more information on our ATC (Zone Valves) can be found in the Components section of our website. Which valves incorporate multiple orifice plates? The large, high flow valves have multiple orifice plates, specifically, the 2530, 2535, 2540, 2545, 2546, 2547, 2548, and 2570 valves. How does the Automatic Balancing Valve perform in conjunction with modulating ATC valves? Is it still effective and(or) required? The Automatic Balancing Valves helps to limit the flow to the maximum design flow at all conditions with respect to branch-to-branch variation when Modulating ATC valve is fully open. The Modulating ATC can thereby be used to modulate the flow below design flow to affect the temperature difference across the coil. It is very critical to size the Modulating control valves based on the system to provide better authority and system stability. More information on how Mesurflo® Automatic Balancing Valves perform with modulating zone valves can be found on our website here: Modulating Flow Control with Mesurflo

  • Marine Applications, Commercial

    Marine Applications, Commercial Model 2313, Mesurflo® Bronze Automatic Balancing Valve 1/2 in. 3/4 in. Flow Rate Differential Operating Pressure 0.50 to 5.00 GPM 5.50 to 9.00 GPM 3.0 - 80.0 PSID 4.0 - 80.0 PSID Read More Model 2323, Mesurflo® Bronze Automatic Balancing Valve 3/4 in. 1 in. 1-1/2 in. 1-1/4 in. Flow Rate Differential Operating Pressure 9.00 to 17.0 GPM 18.00 to 25.0 GPM 4.0 - 80.0 PSID 5.0 - 80.0 PSID Read More Model 2333, Mesurflo® Bronze Automatic Balancing Valve 1-1/2 in. Flow Rate Differential Operating Pressure 26.0 to 50.0 GPM 5.0 - 80.0 PSID Read More Model 2510SS, Mesurflo® Stainless Steel Automatic Balancing Valve 1/2 in. 3/4 in. Flow Rate Differential Operating Pressure 0.50 to 5.00 GPM 5.50 to 9.00 GPM 3.0 - 80.0 PSID 4.0 - 80.0 PSID Read More Model 2520SS, Mesurflo® Stainless Steel Automatic Balancing Valve 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. Flow Rate Differential Operating Pressure 9.00 to 17.0 GPM 18.00 to 25.0 GPM 4.0 - 80.0 PSID 5.0 - 80.0 PSID Read More Model 2539SS, Mesurflo® Stainless Steel Automatic Balancing Valve 1-1/2 in. 2 in. Flow Rate Differential Operating Pressure 26-50 GPM (1-1/2 in.) 26-75 GPM (2 in.) 5.0 - 80.0 PSID Read More Model 2545SS, Mesurflo® Stainless Steel Automatic Balancing Valve 2 in. 2-1/2 in. 3 in. 4 in. Flow Rate Differential Operating Pressure 50-100 GPM (1 GPM Increments) 105-225 GPM (5 GPM Increments) 5.0 - 80.0 PSID Read More Model 2547SS, Mesurflo® Stainless Steel Automatic Balancing Valve 6 in. 8 in. Flow Rate Differential Operating Pressure 250-600 GPM (6 in.) 600-1000 GPM (8 in.) 5.0 - 80.0 PSID Read More Model 2570SS, Mesurflo® Stainless Steel Automatic Balancing Valve 10 in. 12 in. 14 in. 16 in. 18 in. Flow Rate Differential Operating Pressure 25 GPM Increments 5.0 - 80.0 PSID Read More Model 2305SS, Mesurflo® Stainless Steel Automatic Balancing Valve 3/8 in 1/2 in. 3/4 in. Flow Rate Differential Operating Pressure 3/8" - 0.30, 0.40, 0.50, 0.60, 0.75, 1.00, 1.25, 1.50, 1.75, 2.00 GPM 1/2" - 0.50, 0.60, 0.75, 1.00, 1.25, 1.50, 1.75, 2.00, 2.50, 3.00, 3.50, 4.00, 4.50, 5.00 GPM 3/4" - 1.00, 1.25, 1.50, 1.75, 2.00, 2.50, 3.00, 3.50, 4.00, 4.50, 5.00, 6.00, 7.00, 8.00, 9.00, 10.0 GPM 15.0 - 150.0 PSID Read More

  • Low Temperature Valves

    Low-Temperature Valves Model 2510LT, Mesurflo® Automatic Balancing Valve for Glycol Chiller Systems 1/2 in. 3/4 in. 1 in. Flow Rate 0.50 to 9.0 GPM Inlet Connections FSWT Differential Operating Pressure 2-35 PSID Outlet Connections FSWT Read More Model 2520LT, Mesurflo® Automatic Balancing Valve for Glycol Chiller Systems 3/4 in. 1 in. Flow Rate 10.0 to 17.0 GPM 18.0 to 28.0 GPM Inlet Connections FSWT Differential Operating Pressure 2-35 PSID 3-35 PSID Outlet Connections FSWT Read More Model 2406LT, Low Temperature Y-Ball Strainer 1/2 in. 3/4 in. 1 in. Flow Rate See Spec Sheet Inlet Connections FSWT Differential Operating Pressure See Spec Sheet Outlet Connections FSWT Read More

  • Marine Applications, Military, Series 2300 Valves

    Marine Applications, Series 2300 Model 2354, Marine Inline Valve 1/2 in. Style Inline Flow Rate 0.50 to 10.00 GPM Differential Operating Pressure 15-150 PSID Maximum Operating Temperature 160° F Read More Model 2351, Marine Inline Valve 3/4 in. Style Inline Flow Rate 2.50 to 10.0 GPM Differential Operating Pressure 15-150 PSID Maximum Operating Temperature 160° F Read More Model 2352, Marine Inline Valve, 1 in. 1 in. Style Inline Flow Rate 4.0 to 23.0 GPM Differential Operating Pressure 15-150 PSID Maximum Operating Temperature 160° F Read More Model 2352, Marine Inline Valve, 1-1/4" 1-1/4 in. Style Inline Flow Rate 13.0 to 50.0 GPM Differential Operating Pressure 15-150 PSID Maximum Operating Temperature 160° F Read More Model 2352, Marine Inline Valve, 1-1/2" 1-1/2 in. Style Inline Flow Rate 30.0 to 109.0 GPM Differential Operating Pressure 15-150 PSID Maximum Operating Temperature 160° F Read More Model 2353, Marine Inline Valve 1-1/2 in. x 1-1/4 in. Style Inline Flow Rate 8.0 to 50.0 GPM Differential Operating Pressure 15-150 PSID Maximum Operating Temperature 160° F Read More

  • Marine Applications Valves

    Marine Applications Series 2300, Marine Inline Valves 1/2 in. 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. Style Inline Differential Operating Pressure 15-150 PSID Flow Rate 0.50 to 109.0 GPM Maximum Operating Temperature 160° F Read More Series 350X, Inline Low Differential Pressure Valves 1/2 in. 3/4 in. 1 in.. Style Inline Differential Operating Pressure 2-150 PSID Flow Rate 0.50 to 109.0 GPM Maximum Operating Temperature 225° F Read More Series 35X4, Y-Ball Low Differential Pressure Valves 1/2 in. 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. 2 in. Style Inline Differential Operating Pressure Flow Rate 0.50 to 100.00 GPM Maximum Operating Temperature 2-150 PSID 225° F Read More Series 360X, Inline Low Differential Pressure Valves 3/4 in. 1 in. Style Y-Ball Differential Operating Pressure 2-150 PSID Flow Rate 0.50 to 23.00 GPM Maximum Operating Temperature 160° F Read More Series 3554, Inline (AFFF) Valve 1-1/2" Style Inline Differential Operating Pressure 15-150 PSID Flow Rate 9.00 to 75.00 GPM Maximum Operating Temperature 225° F Read More

  • Marine Applications, Military Series 360X Valves

    Marine Applications, Series 360X Model 3602, Inline Low Differential Pressure Valve 3/4 in. Flow Rate 2.5-5.0 GPM 5.5-8.0 GPM 8.5-10.0 GPM Differential Operating Pressure 2-150 PSID 3-150 PSID 5-150 PSID Read More Model 3603, Inline Low Differential Pressure Valve 1 in. Flow Rate 4.0-10.0 GPM 11.0-19.0 GPM 20.0-23.0 GPM Differential Operating Pressure 3-150 PSID 4-150 PSID 5-150 PSID Read More

  • 55_SS - List | Hays Fluid Controls

    Stainless Steel Engineered for Clean Environments and Critical Performance Hays stainless steel valves are built for applications where cleanliness, corrosion resistance, and reliability are non-negotiable. From precision cooling loops in data centers to sanitation-sensitive food storage environments, our stainless valves are trusted in some of the most demanding conditions. Crafted from high-grade stainless steel and backed by Hays’ decades of engineering excellence, these valves resist corrosion, perform under pressure, and support mission-critical systems with zero compromise. Whether you’re specifying for a new-build data center or retrofitting a food-safe facility, Hays stainless steel valves offer performance you can count on—with the simplicity and quality you expect from Hays. Specifications Model 2510SS, Spec Sheet Model 2520SS, Spec Sheet Model 2539SS, Spec Sheet Model 2545SS, Spec Sheet Model 2547SS, Spec Sheet Model 2570SS, Spec Sheet Model 2305SS, Spec Sheet Model 2510SS, Mesurflo® Stainless Steel Automatic Balancing Valve 1/2 in. 3/4 in. Flow Rate 0.50 to 5.00 GPM 5.50 to 9.00 GPM Differential Operating Pressure 3.0 - 80.0 PSID 4.0 - 80.0 PSID Read More Model 2520SS, Mesurflo® Stainless Steel Automatic Balancing Valve 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. Flow Rate 9.00 to 17.0 GPM 18.00 to 25.0 GPM Differential Operating Pressure 4.0 - 80.0 PSID 5.0 - 80.0 PSID Read More Model 2539SS, Mesurflo® Stainless Steel Automatic Balancing Valve 1-1/2 in. 2 in. Flow Rate 26-50 GPM (1-1/2 in.) 26-75 GPM (2 in.) Differential Operating Pressure 5.0 - 80.0 PSID Read More Model 2545SS, Mesurflo® Stainless Steel Automatic Balancing Valve 2 in. 2-1/2 in. 3 in. 4 in. Flow Rate 50-100 GPM (1 GPM Increments) 105-225 GPM (5 GPM Increments) Differential Operating Pressure 5.0 - 80.0 PSID Read More Model 2547SS, Mesurflo® Stainless Steel Automatic Balancing Valve 6 in. 8 in. Flow Rate 250-600 GPM (6 in.) 600-1000 GPM (8 in.) Differential Operating Pressure 5.0 - 80.0 PSID Read More Model 2570SS, Mesurflo® Stainless Steel Automatic Balancing Valve 10 in. 12 in. 14 in. 16 in. 18 in. Flow Rate 25 GPM Increments Differential Operating Pressure 5.0 - 80.0 PSID Read More Model 2305SS, Mesurflo® Stainless Steel Automatic Balancing Valve 3/8 in 1/2 in. 3/4 in. Flow Rate 3/8" - 0.30 - 2.00 GPM 1/2" - 0.50 - 5.00 GPM 3/4" - 1.00 - 10.0 GPM Differential Operating Pressure 15.0 - 150.0 PSID Read More

  • HOME | Hays Fluid Controls

    Learn More Commercial HVAC Unmatched flow control in comfort critical commercial environments. More Marine Applications Control labor and materials from keel cooling to ship HVAC systems. Commercial Military From our roots in Erie, Pennsylvania to the modern day rolling hills of North Carolina, we will always be America proud. Our Story > BROWSE BY APPLICATION COMMERCIAL HVAC Critical flow control to optimal comfort. MORE > DHW/ LEAD-FREE Designed for increased health & safety. MORE > NAVY QUALIFIED The staple in US Navy ship systems. MORE > MARINE APPLICATIONS Built for unpredictable maritime environments. MORE > SYSTEMS & PROCESSES Consistently reliable for any controlled process. MORE > TOOLS CALCULATORS Online Price Guide Pressure Drop Calculator Velocity Calculator SHIPPING Select your carrier for shipping status. FedEx UPS MAILING LIST Stay up to date with Hays news. Thanks for submitting! Get News and Updates JOIN OUR MAILING LIST Get Shipping Status Careers With 150+ years of experience, we’ve learned what’s most important, our people. Through humility, integrity and determination we work together as ONE. View Current Openings

  • Actuated Temperature Control Valves

    Actuated Temperature Control Valves Schneider Electric, On/Off Automatic Temperature Control Valve 1/2 in. 3/4 in. 1 in. Inlet Connections NPT Outlet Connections NPT Style Electric On/Off Read More Schneider Electric, Proportional/Floating Automatic Temperature Control Zone Valve 1/2 in. 3/4 in. 1 in. Inlet Connections NPT Outlet Connections NPT Style Floating Point Or Proportional Read More Schneider Electric, Automatic Temperature Control Valve, Electric On/Off 1-1/4 in. 1-1/2 in. 2 in Inlet Connections NPT Outlet Connections NPT Style Electric On/Off Read More Model QCV, Belimo Zone Tight™ ATC Valve 1/2 in. 3/4 in. Inlet Connections NPT Outlet Connections NPT Style Read More Model CCV, Belimo Characterized Control Valve 1/2 in. to 6 in. Inlet Connections NPT Outlet Connections NPT Style Read More

  • Components, Hays Fluid Controls

    Components Stainless Steel Braided Flexible Hose - 0.5 to 1.25 inch 1/2 in. 3/4 in. 1 in. 1-1/4 in. Model No. HOSE1 Type Stainless Steel Braided Flexible Hose Read More Stainless Steel Braided Flexible Hose (1-1/2 in. & 2 in.) 1-1/2 in. 2 in. Model No. HOSE2 Type Stainless Steel Braided Flexible Hose Read More Stainless Steel Braided Flexible Hose (2-1/2 in. & 3 in.) 2-1/2 in. 3 in. Model No. HOSE3 Type Stainless Steel Braided Flexible Hose Read More Condensate Hose (3/4 in.) 3/4 in. Model No. HOSE4 Type Condensate Hose Read More Ball Valve with Union (1/2 in., 3/4 in., 1 in., 1-1/4 in., 1-1/2 in. & 2 in.) 1/2 in. 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. 2 in. Model No. BV1 Type Ball Valve with Union Read More Ball Valve (1/2 in., 3/4 in., 1 in., 1-1/4 in., 1-1/2 in. & 2 in.) 1/2 in. 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. 2 in. Model No. BV2 Type Ball Valve Read More Y-Ball Combination Strainer (1/2", 3/4", 1" & 1-1/4") Price Model No. STR5 Type Y-Ball Combination Strainer Read More Y-Ball Combination Strainer with Union 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2” & 2” Price Model No. STR1 Type Y-Ball Combination Strainer with Union Read More Cast Iron Wye Strainer (2-1/2 in., 3 in., 4 in., 6 in. & 8 in.) 2-1/2 in. 3 in. 4 in. 6 in. 8 in. Model No. CYS250 CYS300 CYS400 CYS600 CYS800 Type Cast Iron Wye Strainer Read More Combination Butterfly Valve & Wye Strainer (2-1/2 in., 3 in., 4 in., 6 in. & 8 in.) 2-1/2 in. 3 in. 4 in. 6 in. 8 in. Model No. CBYS250 CBYS300 CBYS400 CBYS600 CBYS800 Type Combination Butterfly Valves & Wye Strainer Read More Steel Hook-Up Accessory Series (2-1/2 in., 3 in., 4 in., 6 in. & 8 in.) 2-1/2 in. 3 in. 4 in. 6 in. 8 in. Model No. FL250SO FL300SO FL400SO FL600SO FL800SO Type Steel Hook-Up Accessory Series Read More Steel Hook-Up Accessory Series w/Handle (2-1/2 in., 3 in., 4 in., 6 in. & 8 in.) 2-1/2 in. 3 in. 4 in. 6 in. 8 in. Model No. FL250SO FL300SO FL400SO FL600SO FL800SO Type Steel Hook-Up Accessory Series Read More BFA- Butterfly Valve - Cast Iron Lug Style Flanged Handle (2 in., 2-1/2 in., 3 in., 4 in., 6 in. & 8 in.) 2-1/2 in. 3 in. 4 in. 6 in. 8 in. Model No. BFA-001 BFA-002 Type BFA- Butterfly Valve - Cast Iron Lug Style Flanged Handle Read More On/Off Valve Actuator Control Signal Type Two Position Lead Options Remove Terminal Block (All terminal block and appliance wire units accept a 1/2 in. conduit connector fitting. 18 in. Appliance Wire Read More Proportional/Floating Valve Actuator Control Signal Type Floating Lead Options Terminal Block (All terminal block and appliance wire units accept a 1/2 in. (12.7 mm) conduit connector fitting.) Read More

  • Premium Hose Kits, Hays Fluid Controls

    Hose Kits AUTOMATIC MANUAL Series 2510, Automatic Inline Hose Kit 1/2 in., 3/4 in., 1 in. Flow Rate 0.50 to 9.0 GPM Select Series 2516, Automatic Y-Ball Hose Kit 1/2 in., 3/4 in., 1 in. Flow Rate 0.50 to 9.0 GPM Select Series 2519, Automatic Y-Ball Hose Kit 1/2 in., 3/4 in. Flow Rate 0.50 to 5.0 GPM Select Series 2520, Automatic Inline Hose Kit 3/4 in., 1 in., 1-1/4 in., 1-1/2 in. Flow Rate 10.0 to 25.0 GPM Select Series 2524, Automatic Y-Ball Hose Kit 3/4 in., 1 in., 1-1/4 in., 1-1/2 in. Flow Rate 10.0 to 25.0 GPM Select Series 2530, Automatic Inline Hose Kit 1-1/2 in. Flow Rate 26.0 to 75.0 GPM Select Series 2535, Automatic Inline Hose Kit 2 in., 2-1/2 in. Flow Rate 50.0 to 100.0 GPM Select Manual Mesurmeter™ Hose Kit 1/2 in., 3/4 in., 1 in., 1-1/4 in., 1-1/2 in., 2 in. Flow Rate 0.20 to 125.2 GPM (0.50 to 5.0 PSID) Read More Manual Deluxe Ball Valve Hose Kit 1/2 in., 3/4 in., 1 in., 1-1/4 in., 1-1/2 in., 2 in. Flow Rate See Spec Sheet Read More

  • Industrial Solenoid Valves

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