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Home > Products > Industrial Solenoid Valves > Series 2305 > Model 2305-1151 3/4, Mesurflo® Automatic Flow Control To play, press and hold the enter key. To stop, release the enter key. Model 2305-1151 3/4, Mesurflo® Automatic Flow Control 3/4 in. KEY SPECS Type Flow Control Temperature Range 32 to 160 ºF Pressure Range 15.0 to 150.0 PSID DOWNLOADS Series 2300, Technical Data Hays, Valves Glossary Industrial Terms & Conditions Standard Features Constant flow regardless of pressure fluctuation Quiet operation Pressure Differential Range 15 - 150 psid Temperature Range 32º to 160º F Accuracy ± 10% Suitable for Most Coolants Consult factory for differential pressures lower than 15 psid Unique Hays design Patented Flow Control Assembly provides a constant flow rate on a consistent basis. Flexing diaphragm is self-cleaning Maintains clear orifice by flexing action of patented diaphragm assembly which significantly reduces clogging. Long-life means real savings Mesurflo Controls will operate efficiently for many years which means little or no down time and loss of productivity. Diaphragm area is proportioned to pressure Each Mesurflo is designed specifically to deliver the prescribed flow rate. Mesurflo can be used for large flow rates. Mesurflo controls are placed parallel in a single housing providing the specified flow rate even on large flow rates. SPECIFICATIONS APPLICATIONS Irrigation and Crop Dusting Swimming Pool Filters Industrial Equipment Cooling Systems Electronic Power Tube Cooling Systems Welding Equipment Cooling Systems Pump, Compressor, & Vacuum Equipment Cooling Systems Industrial Time Fill & Meter Equipment Tankless Heater & Heat Transfer Systems Water Stream & Water Spray Control Film Process & Rinse Systems Industrial & Medical Stills Water Conservation Applications Water Table Drawdown Water Source Heat Pumps Pump & Dump Systems Size 3/4 in. Flow Rate 6 GPM Differential Pressure Range 15.0 to 150.0 PSID Temperature Range 32 to 160 ºF Accuracy ± 10 % Overall Length 2-9/16 in. Diameter Across Corners 1-17/32 in.

Home > Products > Industrial Solenoid Valves > Series 2305 > Model 2305-1051 3/8, Mesurflo® Automatic Flow Control To play, press and hold the enter key. To stop, release the enter key. Model 2305-1051 3/8, Mesurflo® Automatic Flow Control 3/8 in. KEY SPECS Type Flow Control Temperature Range 32 to 160 ºF Pressure Range 15.0 to 150.0 PSID DOWNLOADS Series 2300, Technical Data Hays, Valves Glossary Industrial Terms & Conditions Standard Features Constant flow regardless of pressure fluctuation Quiet operation Pressure Differential Range 15 - 150 psid Temperature Range 32º to 160º F Accuracy ± 10% Suitable for Most Coolants Consult factory for differential pressures lower than 15 psid Unique Hays design Patented Flow Control Assembly provides a constant flow rate on a consistent basis. Flexing diaphragm is self-cleaning Maintains clear orifice by flexing action of patented diaphragm assembly which significantly reduces clogging. Long-life means real savings Mesurflo Controls will operate efficiently for many years which means little or no down time and loss of productivity. Diaphragm area is proportioned to pressure Each Mesurflo is designed specifically to deliver the prescribed flow rate. Mesurflo can be used for large flow rates. Mesurflo controls are placed parallel in a single housing providing the specified flow rate even on large flow rates. SPECIFICATIONS APPLICATIONS Irrigation and Crop Dusting Swimming Pool Filters Industrial Equipment Cooling Systems Electronic Power Tube Cooling Systems Welding Equipment Cooling Systems Pump, Compressor, & Vacuum Equipment Cooling Systems Industrial Time Fill & Meter Equipment Tankless Heater & Heat Transfer Systems Water Stream & Water Spray Control Film Process & Rinse Systems Industrial & Medical Stills Water Conservation Applications Water Table Drawdown Water Source Heat Pumps Pump & Dump Systems Size 3/8 in. Flow Rate 1-1/4 GPM Differential Pressure Range 15.0 to 150.0 PSID Temperature Range 32 to 160 ºF Accuracy ± 10 % Overall Length 1-3/4 in. Diameter Across Corners 1-1/16 in.

Home > Products > Piping Packages > Series 2519, Automatic 3 Way Hard Piping Package Series 2519, Automatic 3 Way Hard Piping Package 1/2 in. 3/4 in. KEY SPECS Flow Rate 0.50 to 5.0 GPM Material 3 Way DOWNLOADS Model 2519, Piping Package Spec, 3-Way, Hard Model 2519, Piping Package Spec, 3-Way, Hard Piping Package Installation & Operation Manual Spec Number ABPP-SPEC-3P19-002 Standard Features Model 2519 Y-Ball Mesurflo with Pressure/Temperature Ports FSWT Coil Fittings with Pressure/Temperature Ports Y-Ball Strainer with Pressure/Temperature Port (in#4 port) and Blowdown Valve with Hose Connector Lever Handle Package Shrink Wrapped on Skin Board (Hard Pipe & Flexible Packages up to 3/4" and Flex Packages using hose lengths up to 24" will be shrink wrapped on skin board. Other sizes are too large and heavy for the board.) Mixing ATC Assembled on Return Side of Piping Packages as Shown in the Normally Closed Position. For Normally Closed Selection, Port (A) would be Assembled to the By-Pass and Port (B) to the Coil. Port (B) is Always Closed When Not Energized. Options Hays Supplied & Installed ATC: 1/2" - 3/4" - 2-Wire 120v, Normally Open or Normally Closed Hays Supplied & Installed ATC: 1/2" - 3/4" - 2-Wire 24v, Normally Open or Normally Closed Customer Supplied - Hays Installed ATC Customer Supplied-Field Installed ATC Extended Pressure/Temperature Ports & Extended Handles Manual Air Vent on Return Side Coil Connection Short Handle Shown SPECIFICATIONS Size 1/2 in. 3/4 in. Model No. 2519 Type Automatic Flow Rate 0.50 to 5.0 GPM Style 3 Way Specification No. ABPP-SPEC-3P19-002

Home > Products > Manual Balancing Valves > Model MV1-6-005, Venturi Style Manual Balancing Valve To play, press and hold the enter key. To stop, release the enter key. Model MV1-6-005, Venturi Style Manual Balancing Valve 1/2 in. 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. 2 in. KEY SPECS Flow Rate 1/2 in. | 0.2 to 12.1 GPM (0.5 to 5.0 PSID) 3/4 in. | 0.4 to 15.0 GPM (0.5 to 5.0 PSID) 1 in. | 1.6 to 44.7 GPM (0.5 to 5.0 PSID) 1-1/4 in. | 3.9 to 53.7 GPM (0.5 to 5.0 PSID) 1-1/2 in. | 9.9 to 98.4 GPM (0.5 to 5.0 PSID) 2 in. | 9.2 to 125.2 GPM (0.5 to 5.0 PSID) Inlet Connections FNPT FSWT MNPT Outlet Connections FNPT FSWT DOWNLOADS Model MV1-6-005, Spec Sheet Model MV1-6-005, How to Order Model MV1-6-005, Installation & Operation Terms and Conditions Spec Number MBV-SPEC-MV7-005 Standard Features Nominal Working Pressure: 600 WOG Working Temperature: -4ºF (-20ºC) ≤ t ≤ 230ºF (110ºC) Solder socket to ANSI B16.18 Preset Non-Removable Venturi Inserts Cv's: 1/2": 0.23, 0.46, 0.87, 1.8, 3.3, 5.4 3/4": 0.55, 1.1, 2.2, 4.0, 6.7 1": 2.3, 5.4, 9.2, 20 1-1/4": 5.5, 9.8, 20, 24 1-1/2": 14, 19, 44 Outlet Connections FSWT or FNPT Inlet Connections FSWT, FNPT or MNPT Lever Handle 2 Pressure/Temperature Ports and 1 plug Memory Stop Options Extended Pressure/Temperature Ports Extended Handles Extended Handles cannot be ordered without extended Pressure/Temperature Ports Stainless Steel Tag-Chain SPECIFICATIONS MATERIALS Size 1/2 in. 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. 2 in. Style Venturi Type Manual Balancing Valve Model No. MV1-6-005 Flow Rate 1/2 in. | 0.2 to 12.1 GPM (0.5 to 5.0 PSID) 3/4 in. | 0.4 to 15.0 GPM (0.5 to 5.0 PSID) 1 in. | 1.6 to 44.7 GPM (0.5 to 5.0 PSID) 1-1/4 in. | 3.9 to 53.7 GPM (0.5 to 5.0 PSID) 1-1/2 in. | 9.9 to 98.4 GPM (0.5 to 5.0 PSID) 2 in. | 9.2 to 125.2 GPM (0.5 to 5.0 PSID) Flange Rating Not Flanged Inlet Connections FNPT FSWT MNPT Outlet Connections FNPT FSWT Operating Temperature Range -4º F to 230ºF Specification No. MBV-SPEC-MV7-005 Weight See Spec Sheet Dimensions See Spec Sheet Ball Chrome Plated Brass Ball Valve End Fitting N/A Bearing N/A Bearing Bush N/A Butterfly Valve N/A Disc (2-1/2" - 8") N/A Disc (10" & 12") N/A End Cap N/A Fixed End Brass Flange N/A Handle 316 Stainless Steel Hex Socket Pipe Plug Brass Memory Stop 316 Stainless Steel O-Rings EPDM Pressure / Temperature Ports Brass Screw / Self Tapping Screw 316 Stainless Steel Seat Material PTFE Shaft N/A Stem Material Brass Tailpiece Brass Union End N/A Union Nut Brass Valve Body Brass Venturi N/A

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

Home > Products > Piping Packages > Manual Venturi 2-Way Hard Piping Package 1/2" Manual Venturi 2-Way Hard Piping Package 1/2" 1/2 in. KEY SPECS Flow Rate 0.20 to 12.1 GPM (0.50 to 5.0 PSID) Material 2 Way DOWNLOADS 1/2 in. Manual Piping Package Spec, 2-Way, Hard Piping Package Installation & Operation Manual Spec Number MBPP-SPEC-2PM1-005 Standard Features Venturi Style Manual Balance Valve with Memory Stop and Pressure/Temperature Ports Ball Valve with Pressure/Temperature Ports and Union End FSWT Coil Fittings with Pressure/Temperature Ports Lever Handle Cv's: 0.23, 0.46, 0.87, 1.80, 3.30, 5.40 Package Shrink Wrapped on Skin Board (Hard Pipe & Flexible Packages up to 3/4" and Flex Packages using hose lengths up to 24" will be shrink wrapped on skin board. Other sizes are too large and heavy for the board.) Options Hays Supplied & Installed ATC: 1/2" - 1) 2-Wire 24v, Normally Open-Normally Close Hays Supplied & Installed ATC: 1/2" - 2) 2-Wire 120V, Normally Open-Normally Close Blowdown Valve with Hose Connector (Optional for Ball Valve) Customer Supplied - Hays Installed ATC Customer Supplied-Field Installed ATC Extended Pressure/Temperature Ports & Extended Handles Manual Air Vent on Return Side Coil Connection Short Handle Shown (Available in 1/2" & 1" Only) Y-ball Strainer with Pressure/Temperature Port & Blowdown Valve w/Hose Connector (Replaces Ball Valve with Pressure Temperature Ports) SPECIFICATIONS Size 1/2 in. Model No. 2PM1-005 Type Manual Flow Rate 0.20 to 12.1 GPM (0.50 to 5.0 PSID) Style 2 Way Specification No. MBPP-SPEC-2PM1-005

Home > Products > Industrial Solenoid Valves > Series 2110 > Model 2110-6021 3/4, ElectroFlo Industrial Solenoid Valve To play, press and hold the enter key. To stop, release the enter key. Model 2110-6021 3/4, ElectroFlo Industrial Solenoid Valve 3/4 in. KEY SPECS Medium Water Operating Temperature 195º F Voltage 120V 60HZ 110V 50HZ Pressure Range 5.0 to 150.0 PSI DOWNLOADS Model 2110, Replacement Parts Hays, Valves Glossary Terms and Conditions Standard Features 2-way Normally Closed Pilot-Operated Piston-Type Bronze Construction UL Listed Variety of Voltages Maximum Temperature 195ºF Pressure Range 5 - 150 psi water Pressure Range 5 - 100 psi air Horizontal Installation Special Features Proven design. Many years of field experience have made these valves the standard in the industry. Wide range of operating pressures & temperatures. 5 psi to 150 psi pressure and temperatures to 195°F affords broad application and tremendous flexibility. Highest quality. Long life bronze castings and waterproof coils insure performance consistency for a long life. Rugged reliability saves money. Because of low incidence of down time and maintenance. Maximum flow. Minimum pressure drop internal design of this pilot operated piston-type valve assures exceptional flow performance. Two way-normally closed. Fail safe positive valve closing in the event of power failure prevents flooding or overfilling. APPLICATIONS NOTES Commercial Laundry Equipment and Facilities Commercial Dishwashers, Bottlewashers, Pot/Pan Washers Car & Truck Wash Facilities Irrigation Systems Humidification Water Treatment Poultry Incubators/Watering Equipment Industrial Maintenance, Repair, and Operation All Voltages available in all sizes.

Home > Products > Industrial Solenoid Valves > Series 2305 > Model 2305-1061 1/2, Mesurflo® Automatic Flow Control To play, press and hold the enter key. To stop, release the enter key. Model 2305-1061 1/2, Mesurflo® Automatic Flow Control 1/2 in. KEY SPECS Type Flow Control Temperature Range 32 to 160 ºF Pressure Range 15.0 to 150.0 PSID DOWNLOADS Series 2300, Technical Data Hays, Valves Glossary Industrial Terms & Conditions Standard Features Constant flow regardless of pressure fluctuation Quiet operation Pressure Differential Range 15 - 150 psid Temperature Range 32º to 160º F Accuracy ± 10% Suitable for Most Coolants Consult factory for differential pressures lower than 15 psid Unique Hays design Patented Flow Control Assembly provides a constant flow rate on a consistent basis. Flexing diaphragm is self-cleaning Maintains clear orifice by flexing action of patented diaphragm assembly which significantly reduces clogging. Long-life means real savings Mesurflo Controls will operate efficiently for many years which means little or no down time and loss of productivity. Diaphragm area is proportioned to pressure Each Mesurflo is designed specifically to deliver the prescribed flow rate. Mesurflo can be used for large flow rates. Mesurflo controls are placed parallel in a single housing providing the specified flow rate even on large flow rates. SPECIFICATIONS APPLICATIONS Irrigation and Crop Dusting Swimming Pool Filters Industrial Equipment Cooling Systems Electronic Power Tube Cooling Systems Welding Equipment Cooling Systems Pump, Compressor, & Vacuum Equipment Cooling Systems Industrial Time Fill & Meter Equipment Tankless Heater & Heat Transfer Systems Water Stream & Water Spray Control Film Process & Rinse Systems Industrial & Medical Stills Water Conservation Applications Water Table Drawdown Water Source Heat Pumps Pump & Dump Systems Size 1/2 in. Flow Rate 1-1/2 GPM Differential Pressure Range 15.0 to 150.0 PSID Temperature Range 32 to 160 ºF Accuracy ± 10 % Overall Length 2-7/32 in. Diameter Across Corners 1-1/4 in.

Y-Ball Combination Strainer with Union 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2” & 2” Home > Products > Components > Y-Ball Combination Strainer with Union 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2” & 2” 1/2 in. 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. 2 in. KEY SPECS Type Y-Ball Combination Strainer with Union Inlet Connections FNPT FSWT Outlet Connections FNPT FSWT MNPT DOWNLOADS Y-Ball Strainer w-Union, Spec Sheet Y-Ball Strainer w-Union, How to Order Y-Ball Strainer, Installation and Operation Specification No. COMP-SPEC-STR1-008 Standard Features Nominal Working Pressure: 400 PSI Working Temperature: 32°F - 225°F Blowdown Valve w/ Hose Connector 1 Pressure/Temperature Port Lever Handle Inlet Connections FSWT or FNPT Outlet Connections FSWT, FNPT or MNPT Strainer Screen Stainless Steel / 20 Mesh Options: Short Handles (1/2" - 1" only) Extended Handles Pressure Temperature Port¹ Manual Air Vent Port If Right or Left Hand Porting is needed on the Strainer, Consult Factory for assistance SPECIFICATIONS MATERIALS Type Y-Ball Combination Strainer with Union Model No. STR1 Size 1/2 in. 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. 2 in. Inlet Connections FNPT FSWT Outlet Connections FNPT FSWT MNPT Specification No. COMP-SPEC-STR1-008 Seat Materials PTFE Ball Chrome Plated Brass Stem Material Brass Handle Steel Valve Body Brass Screw Steel O-Rings EPDM Pressure/Temperature Ports Brass Strainer 316 Stainless Steel

Home > Products > Piping Packages > Series 2524, Automatic 2 Way Flex Piping Package Series 2524, Automatic 2 Way Flex Piping Package 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. KEY SPECS Flow Rate 0.50 to 25.0 GPM Material 2 Way DOWNLOADS Piping Package Installation & Operation Manual Spec Number ABPP-SPEC-2F24-002 ABPP-SPEC-2F24-003 Standard Features Model 2524 Y-Ball Mesurflo with Pressure/Temperature Ports Ball Valve with Pressure/Temperature Ports and Union End FSWT Coil Fittings with Pressure/Temperature Ports Hose Lengths 12", 18", 24" & 36" Lever Handle Package Shrink Wrapped on Skin Board (Hard Pipe & Flexible Packages up to 3/4" and Flex Packages using hose lengths up to 24" will be shrink wrapped on skin board. Other sizes are too large and heavy for the board.) Options Hays Supplied & Installed ATC: 3/4" - 2-Wire 120v, Normally Open or Normally Closed Hays Supplied & Installed ATC: 3/4" - 2-Wire 24v, Normally Open or Normally Closed Hays Supplied & Installed ATC: 1-1/4" - 1-1/2" - 24v, Proportional (0-10Vdc), Normally Closed Hays Supplied & Installed ATC: 1-1/4" - 1-1/2" - 24v, Tristate (Floating), Normally Closed Hays Supplied & Installed ATC: 1-1/4" - 1-1/2" - 2-Wire 24v, Ball Valve, Normally Closed Blowdown Valve with Hose Connector (Optional for Ball Valve) Customer Supplied - Hays Installed ATC Customer Supplied-Field Installed ATC Extended Pressure/Temperature Ports & Extended Handles Manual Air Vent on Return Side Coil Connection Short Handle Shown (Available in 3/4" & 1" Only) Y-ball Strainer with Pressure/Temperature Port & Blowdown Valve w/Hose Connector (Replaces Ball Valve with Pressure Temperature Ports) SPECIFICATIONS Size 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. Model No. 2524 Type Automatic Flow Rate 0.50 to 25.0 GPM Style 2 Way Specification No. ABPP-SPEC-2F24-002 ABPP-SPEC-2F24-003

Home > Products > Marine Applications - Military > Model 3503, Inline Low Differential Pressure Valve Model 3503, Inline Low Differential Pressure Valve 1 in. KEY SPECS Flow Rates 9.00 to 24.0 GPM Differential Operating Pressure 5-150 PSID DOWNLOADS Terms and Conditions Standard Features Sizes: 1” Differential Operating Pressure: 5-150 PSID Flow Rates: 9.00, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 18.0, 20.0, 22.0, 24.0 GPM Flow Accuracy: +/- 10% Maximum Operating Temperature: 225° Valves are marked with flow direction arrows, size and flow rate. Hydrostatic Tested @ 450 psi Service Kits Available Tested to Military Standards Body is available in C83600 & S31603 Connections are available with Silver Braze (C83600 & C90300) or Socket Weld End (C96200, C71500, & S31603) Approximate weight: 6.20 lbs SPECIFICATIONS Valve Style Inline Model No. 3503 Size 1 in. Flow Rate 9.00 to 24.0 GPM Inlet Connections Silver Braze Socket Weld End Outlet Connections Silver Braze Socket Weld End Differential Operating Pressure 5-150 PSID Maximum Operating Temperature 225° F Accuracy ± 10 % Hydrostatic Testing Limit 450 PSI

Home > Products > Marine Applications - Military > Model 3502, Inline Low Differential Pressure Valve Model 3502, Inline Low Differential Pressure Valve 3/4 in. KEY SPECS Flow Rates 0.50 to 9.50 GPM Differential Operating Pressure 2-150 PSID DOWNLOADS Terms and Conditions Standard Features Sizes: ¾” Differential Operating Pressure: 2-150 PSID Flow Rates: 0.50, 0.63, 0.75, 1.00, 1.13, 1.50, 1.63, 1.75, 2.00, 2.25, 2.50, 3.00, 3.25, 3.50, 4.00, 4.50, 5.00, 5.50, 6.00, 6.50, 7.00, 7.50, 8.00, 9.00, 9.50 GPM Flow Accuracy: +/- 10% Maximum Operating Temperature: 225° Valves are marked with flow direction arrows, size and flow rate. Hydrostatic Tested @ 450 psi Service Kits Available Tested to Military Standards Body is available in C83600, S31603 & C71500 Connections are available with Silver Braze (C83600 & C90300) or Socket Weld End (C96200, C71500, & S31603) Approximate weight: 3.64 lbs SPECIFICATIONS Valve Style Inline Model No. 3502 Size 3/4 in. Flow Rate 0.50 to 9.50 GPM Inlet Connections Silver Braze Socket Weld End Outlet Connections Silver Braze Socket Weld End Differential Operating Pressure 2-150 PSID Maximum Operating Temperature 225° F Accuracy ± 10 % Hydrostatic Testing Limit 450 PSI