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Griffco Valve

Since 1993, Griffco Valve has been manufacturing high quality chemical feed equipment for pumps and systems in Amherst, NY. Products include, back pressure valves, pressure relief valves, calibration columns, injection valves, corporation stops, and other chemical feed accessories. All product Griffco manufactures are proudly made in the USA. Griffco is NSF, CE, and ISO 9001 certified.

Griffco works to find the best local suppliers and employ highly talented professionals to ensure customer satisfaction. Every employee is committed to give the customer the best service and support. With thousands of valves and other accessories made since they started, Griffco strives to inform customers on where and how to get the best product, right answers, and trusted support.

Giffco has a wide distribution network and supplies OEMs, leading metering pump companies, and other positive displacement pump companies with products ensuring proper pump and system operation. Griffco has years of chemical feed experience for a wide range of applications, markets, and different pumping technologies. Customers can depend on Griffco’s high quality great customer service, and reliable shipments.

Visit Griffco’s Website

Back Pressure and Pressure Relief Valves

Back Pressure and Pressure Relief Valves

Griffco offers a variety of back pressure valves for low to high flows. The valves come in a variety of materials to meet your application needs. The have 180 degree, 90 degree, and wall mount configurations and are available in threaded, flanged, union, or socket connections.

  • M-Series: Low flow (1/4″ to 1/2″ or DN 8 to DN 15 connections)
  • G-Series: Medium to large flow (1/2″ to 4″ or DN 15 to DN 100 connections)
  • High Flow: High flow (1/2″ to 1″ or DN 15 to DN 25 connections)
  • High-Pressure: High-pressure connections up to 2000 psi (138 bar) in sizes from 1/4″ to 1″ (DN 8 to DN 25)
  • Spring pressures up to 2000 psi
Calibration Columns

Calibration Columns

Griffco Calibration columns come in PVC or Borosilicate glass and are used to verify the flow rate of a chemical feed pump. There is a wide variety of sizes and materials to choose from to best suit your application needs. Connections include: threaded (standard), socket, flanged, flanged with ball valve, and union. Available in both imperial and metric units.

  • Sizes from 100mL to 40,000 mL PVC; 30mL to 20,000 mL Glass
Chemical Injection Valves

Chemical Injection Valves

Griffco Injection Valves or quills ensure that chemical feed systems inject into the center of a process stream for better mixing and to prevent corrosion along the process pipe. A check valve prevents the process fluid from going back up the chemical line. Griffco offers the ICV serviceable injection valve and the IVQ high pressure injection valve. The IVC has threaded and socket connection, comes in a variety of metals and plastics, and fast and ease union disconnect for servicing. The IVQ comes in a range of metals and has threaded connections only.

  • Sizes from ½” to 2 MNPT or MBSPT IVC; ½” to 1” MNPT or MBSPT IVQ
  • Pressures up to 3000 psi
Y-Strainers

Y-Strainers

Griffco Y-Strainers enhance the performance of chemical feed systems by preventing debris from entering the suction side of a chemical feed pump and clogging the check valves or damaging the interior of the pump head. They have either horizontal or vertical installation or a hex cap for easy screen access. A variety of PVC options are available with 316 SS screens optional.

  • Screen Perforation of 1/32”
  • Sizes ½” to 2”
  • Max Temperature 190° F
Pulsation Dampeners

Pulsation Dampeners

Griffco Pulsation Dampeners reduce shock, noise, and provide smoother flow in a chemical feed system. There are a variety of construction materials and diaphragm options. Connections include NPT, BSPT, Union, and flange.

  • Sizes 1/2” to 1”
  • Temperatures up to 225° F
  • Pressures up to 200 psi
Other Accessories

Other Accessories

Griffco offers gauges helps verify that optimal pressures are maintained. Diaphragm isolators protect instruments against chemical attack. Pressure regulators and check valves are also available.

Back Pressure and Pressure Relief Valves

Back Pressure and Pressure Relief Valves

Griffco offers a variety of back pressure valves for low to high flows. The valves come in a variety of materials to meet your application needs. The have 180 degree, 90 degree, and wall mount configurations and are available in threaded, flanged, union, or socket connections.

  • M-Series: Low flow (1/4″ to 1/2″ or DN 8 to DN 15 connections)
  • G-Series: Medium to large flow (1/2″ to 4″ or DN 15 to DN 100 connections)
  • High Flow: High flow (1/2″ to 1″ or DN 15 to DN 25 connections)
  • High-Pressure: High-pressure connections up to 2000 psi (138 bar) in sizes from 1/4″ to 1″ (DN 8 to DN 25)
  • Spring pressures up to 2000 psi

Request a Quote

Calibration Columns

Calibration Columns

Griffco Calibration columns come in PVC or Borosilicate glass and are used to verify the flow rate of a chemical feed pump. There is a wide variety of sizes and materials to choose from to best suit your application needs. Connections include: threaded (standard), socket, flanged, flanged with ball valve, and union. Available in both imperial and metric units.

  • Sizes from 100mL to 40,000 mL PVC; 30mL to 20,000 mL Glass

Request a Quote

Chemical Injection Valves

Chemical Injection Valves

Griffco Injection Valves or quills ensure that chemical feed systems inject into the center of a process stream for better mixing and to prevent corrosion along the process pipe. A check valve prevents the process fluid from going back up the chemical line. Griffco offers the ICV serviceable injection valve and the IVQ high pressure injection valve. The IVC has threaded and socket connection, comes in a variety of metals and plastics, and fast and ease union disconnect for servicing. The IVQ comes in a range of metals and has threaded connections only.

  • Sizes from ½” to 2 MNPT or MBSPT IVC; ½” to 1” MNPT or MBSPT IVQ
  • Pressures up to 3000 psi

Request a Quote

Y-Strainers

Y-Strainers

Griffco Y-Strainers enhance the performance of chemical feed systems by preventing debris from entering the suction side of a chemical feed pump and clogging the check valves or damaging the interior of the pump head. They have either horizontal or vertical installation or a hex cap for easy screen access. A variety of PVC options are available with 316 SS screens optional.

  • Screen Perforation of 1/32”
  • Sizes ½” to 2”
  • Max Temperature 190° F

Request a Quote

Pulsation Dampeners

Pulsation Dampeners

Griffco Pulsation Dampeners reduce shock, noise, and provide smoother flow in a chemical feed system. There are a variety of construction materials and diaphragm options. Connections include NPT, BSPT, Union, and flange.

  • Sizes 1/2” to 1”
  • Temperatures up to 225° F
  • Pressures up to 200 psi

Request a Quote

Other Accessories

Other Accessories

Griffco offers gauges helps verify that optimal pressures are maintained. Diaphragm isolators protect instruments against chemical attack. Pressure regulators and check valves are also available.


Request a Quote

Since 1993, Griffco Valve has been manufacturing high quality chemical feed equipment for pumps and systems in Amherst, NY. Products include, back pressure valves, pressure relief valves, calibration columns, injection valves, corporation stops, and other chemical feed accessories. All product Griffco manufactures are proudly made in the USA. Griffco is NSF, CE, and ISO 9001 certified.

Griffco works to find the best local suppliers and employ highly talented professionals to ensure customer satisfaction. Every employee is committed to give the customer the best service and support. With thousands of valves and other accessories made since they started, Griffco strives to inform customers on where and how to get the best product, right answers, and trusted support.

Giffco has a wide distribution network and supplies OEMs, leading metering pump companies, and other positive displacement pump companies with products ensuring proper pump and system operation. Griffco has years of chemical feed experience for a wide range of applications, markets, and different pumping technologies. Customers can depend on Griffco’s high quality great customer service, and reliable shipments.

Visit Griffco’s Website