Valves |

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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
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High Reliability / Low Cost
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Robust, Machined Construction
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Vulcanised
PTFE/EPDM Diaphragm
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Adjustable 10 - 150 PSI
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Optional 350 PSI Rated Valve
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Anti-Siphon Function
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Wide Range of Materials
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Tamper Resistant Adjustment Screw
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Corrosion Resistant Design
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Typical
Installation
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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
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High Reliability / Low Cost
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Robust, Machined Construction
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Vulcanised PTFE/EPDM Diaphragm
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Adjustable 10 - 150 PSI
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Optional 350 PSI Rated Valve
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2 & 3 Port Configurations
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Ventable to Suction Line
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Wide Range of Materials
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Corrosion Resistant Design
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Typical
Installation
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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
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High reliability at a low cost
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Robust, machined
construction
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Nine (9) volumetric sizes available
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Dampening effect +2.5%
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Operating pressures up to 250 psi (17 bar)
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Made in USA
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Typical
Installation
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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
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High Reliability / Low Cost
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High Contrast Graduation Markings
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Clear Easy-View Tube
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Robust Construction
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Direct GPH Readout
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Sealed Top with Overflow Connection
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Optional EZ-Clean Model
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Optional Open Top with Dust Cap
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Typical
Installation
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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
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High Reliability / Low Cost
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Borosilicate Glass Tube
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5 End Cap Materials
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Easy Disassembly For Cleaning
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Protective Outer Shield
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High Contrast Graduation Markings
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US, Metric & GPH Scales
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Sealed Top with Overflow Connection
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Typical
Installation
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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
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High Reliability / Low Cost
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Robust, Machined Construction
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Sizes from 1/2" to 2" NPT or BSPT, or DN 15 to DN 50
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Pressures up to 3000 psi (207 bar)
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Integral check valve (standard)
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Multiple check ball options (SS, PTFE, Hastelloy® C)
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Hastelloy® C spring (standard)
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Multiple tip configurations
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Wide range of wetted materials
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Typical
Installation
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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
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Compact assembly for easier access and positioning
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High reliability at a low cost
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Robust, machined construction
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Sizes from 1/2" to 1" or DN 15 to DN 25
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Integral check valve (standard)
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Pressures up to 150 psi (10 bar)
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Hastelloy® C spring
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Multiple tip configurations
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Wide range of wetted materials
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Typical
Installation
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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
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Reliable Instrument Protection
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Will perform in any position
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Molded Noryl Top
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316 SS Gauge Connection
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Calibration Screw for Zeroing
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Multiple Diaphragm Options
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Available with or without Gauge
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No Metal Fasteners
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Typical
Installation
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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
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Horizontal or Vertical Installation
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2:1 Open Area Ratio
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Hex Cap for Easy Screen Access
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Standard Screen Perforation: 1/32"
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Made in USA
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Typical
Installation
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ARV
Priming Valve
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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.
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ARV Priming Valve
Operation
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Manual Pump Priming
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Manual Pump Head Degassing
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Optional Automatic Degassing
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Multiple Vent Line Connections
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Multiple Materials of Construction
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Integral Mounting Design
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Optional 350 PSI Rated Valve
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Typical
Installation
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