Back Pressure Valves

Griffco diaphragm back pressure valves are designed to enhance the performance of chemical feed systems by applying a continuous back pressure to the chemical feed pump, while also acting as an anti-syphon valve. Robust construction ensures reliability in the rigorous service of municipal and industrial applications. Wetted materials include: PVC, CPVC, PP, PVDF, PTFE, 316 SS, A 20 and Hast. C. Available sizes: ½ - 2".

G - Series BPV
High Flow Series
M - Series BPV

Operation

• High Reliability / Low Cost 

• Robust, Machined Construction 

• Vulcanised PTFE/EPDM Diaphragm 

• Adjustable 10 - 150 PSI 

• Optional 350 PSI Rated Valve 

• Anti-Siphon Function 

• Wide Range of Materials 

• Tamper Resistant Adjustment Screw 

• Corrosion Resistant Design

Pressure Relief Valves

Griffco diaphragm pressure relief valves are designed to protect chemical feed systems from over pressure damage caused by defective equipment or a blockage in the chemical feed line.. Robust construction ensures reliability in the rigorous service of municipal and industrial applications. Wetted materials include: PVC, CPVC, PP, PVDF, PTFE, 316 SS, A 20 and Hast. C. Available sizes: 1/2" - 2".

G-Series PRV
High Flow Series
M - Series PRV
PRHP - Series PRV

Operation

• High Reliability / Low Cost 

• Robust, Machined Construction 

• Vulcanised PTFE/EPDM Diaphragm 

• Adjustable 10 - 150 PSI 

• Optional 350 PSI Rated Valve 

• 2 & 3 Port Configurations 

• Ventable to Suction Line 

• Wide Range of Materials 

• Corrosion Resistant Design

Pulsation Dampeners

Griffco pulsaton dampeners are designed to enhance the performance of the chemical feed systems by reducing harmful shock waves and delivering continuous chemical dosage at the injection point.

Dampeners

Operation

• High reliability at a low cost 

• Robust, machined construction

• Nine (9) volumetric sizes available

• Dampening effect +2.5%

• Operating pressures up to 250 psi (17 bar) 

• Made in USA

PCV Calibration Cylinders

Griffco calibration cylinders are designed to enhance the performance of chemical feed systems by providing a verification of the flow rate of the chemical feed pump. Robust construction of clear PVC with an easy to read graduation in mls and gph. Available in three models: EZ-Clean, Vented, and Open Top; and 6 sizes; 100 mL, 200 mL, 500 mL, 1000 mL, 2000 mL, 4000 mL, 10,000 mL, and 20,000 mL.

PCV Calibration
 Cylinders

Operation

Sealed	Loose	EZ Clean

• High Reliability / Low Cost 

• High Contrast Graduation Markings 

• Clear Easy-View Tube 

• Robust Construction 

• Direct GPH Readout 

• Sealed Top with Overflow Connection 

• Optional EZ-Clean Model 

• Optional Open Top with Dust Cap

Glass Calibration Cylinders

Griffco Borosilicate Glass Calibration Cylinders are designed to enhance the performance of chemical feed systems by providing a verification of the flow rate of the chemical feed pump. Constructed of borosilicate glass and a choice of 5 end cap materials, (PVC, PTFE, PVDF, 316 SS, A20) these cylinders are suitable for use with most chemicals. 6 sizes; 100 mL, 200 mL, 500 mL, 1000 mL, 2000 mL, 4000 mL.

Glass Calibration Cylinders

Operation

• High Reliability / Low Cost 

• Borosilicate Glass Tube 

• 5 End Cap Materials 

• Easy Disassembly For Cleaning 

• Protective Outer Shield 

• High Contrast Graduation Markings 

• US, Metric & GPH Scales 

• Sealed Top with Overflow Connection

Injection Valves

Griffco injection valves (injection quills) are designed to ensure that chemical feed systems inject into the center of a process stream for better mixing and to prevent corrosion along the process pipe. The check valve prevents the process fluid from going back up the chemical line. Robust construction ensures reliability in the rigorous service of municipal and industrial applications.

ICV
IVQ

Operation

• High Reliability / Low Cost 

• Robust, Machined Construction 

• Sizes from 1/2" to 2" NPT or BSPT, or DN 15 to DN 50

• Pressures up to 3000 psi (207 bar)

• Integral check valve (standard) 

• Multiple check ball options (SS, PTFE, Hastelloy® C) 

• Hastelloy® C spring (standard) 

• Multiple tip configurations  

• Wide range of wetted materials

Corporation Stops

Griffco corporation stops are designed to ensure that chemical feed systems inject into the center of a process stream for better mixing and to prevent corrosion along the process pipe. They are also retractable and offer a ball valve to seal the process stream for servicing (when the process cannot be drained). The integral check valve prevents the process fluid from going back up the chemical line. With limited seals and joints, this leak-free design is a sure fit for safety and long-life operation. Robust construction ensures reliability in the rigorous service of municipal and industrial applications..

Corp Stops

Operation

• Compact assembly for easier access and positioning 

• High reliability at a low cost 

• Robust, machined construction

• Sizes from 1/2" to 1" or DN 15 to DN 25

• Integral check valve (standard) 

• Pressures up to 150 psi (10 bar) 

• Hastelloy® C spring 

• Multiple tip configurations  

• Wide range of wetted materials

Gauge Guards

Griffco diaphragm gauge and instrument isolators are designed to
enhance the performance of chemical feed systems. The addition of
gauges to the system ensure optimal pressures are maintained. Diaphragm
isolators protect instruments against chemical attack.

Gauge Guards

Operation

• Reliable Instrument Protection 

• Will perform in any position

• Molded Noryl Top

• 316 SS Gauge Connection

• Calibration Screw for Zeroing 

• Multiple Diaphragm Options 

• Available with or without Gauge 

• No Metal Fasteners  

Y-Strainers

Griffco Y-Strainers are designed to enhance the performance of chemical feed systems.
The addition of a Y-Strainer to the suction side of the chemical feed pump prevents debris from entering the pump and clogging the check valves or damaging the interior of the pump head.

Y-Strainers

Operation

• Horizontal or Vertical Installation 

• 2:1 Open Area Ratio

• Hex Cap for Easy Screen Access

• Standard Screen Perforation: 1/32"

• Made in USA

ARV Priming Valve

Griffco diaphragm backpressure valves are designed to enhance the performance of chemical feed systems. The addition of a priming valve to the backpressure valve enables the manual priming of the chemical feed pump. Available in PVC, PP, PVDF and 316 SS. Others available on request.

ARV Priming Valve

Operation

• Manual Pump Priming

• Manual Pump Head Degassing

• Optional Automatic Degassing

• Multiple Vent Line Connections

• Multiple Materials of Construction

• Integral Mounting Design

• Optional 350 PSI Rated Valve