
Griffco High-Flow Pressure Relief Valves
Pumps - Mixers - Controls - Systems - sales@vissers.on.ca
Griffco High-Flow Pressure Relief Valves
Griffco High-Flow diaphragm pressure relief valves are designed to protect chemical transfer systems from over pressure damage caused by defective equipment or a blockage in the chemical feed chemical feed line. Large orifice sizes facilitate high flows and higher viscosity fluids.
Wetted Materials:
PVC
CPVC
PP
PVDF
PTFE
316 SS
Alloy 20
Hastelloy® C
Available Sizes:
1/2", 3/4" & 1" or DN 15, DN 20 & DN 25
Features & Benefits:
Higher flow / lower pressure drop
High reliability at a low cost
Large orifice for high-viscosity fluids
2-port design
Vent-able to suction line
Solid, robust, machined construction
Wide range of materials
Flanged and socket connection options
Molded Noryl top with integral hardware locking
Composite PTFE/EPDM diaphragm
Multiple diaphragm material options
Long diaphragm life
Adjustable up to 150 psi (10 bar)
Valve sizes from 1/2" to 1" or DN 15 to DN 25
Tamper-resistant adjustment screw
High-temperature option up to 300ºF (149ºC)
Download Technical Data Sheet: Imperial (US) | Metric (International)
Sizes, Flow Capacities & Pressure Ratings |
Size |
Maximum Flow |
Maximum Pressure |
Pulsating |
Continuous |
Inch |
Metric |
GPH |
LPM |
GPM |
LPM |
PSI |
BAR |
1/2" |
DN 15 |
600 |
2,271 |
30 |
114 |
250 |
17 |
3/4" |
DN 20 |
600 |
2,271 |
30 |
114 |
250 |
17 |
1" |
DN 25 |
1,000 |
3,785 |
54 |
204 |
250 |
17 |
|

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