PRG-050 | G-Series PRV - 1/2"

Product info Show all specs
Description
Griffco's [ PRG-050 ] Pressure Relief Valves have a [ 5 GPM (18.9 LPM) ] max pulsating flow and a [ 21 GPM (80 LPM) ] max continuous flow
Key Specs
Flow Max
21 GPM
Flow Max - Variable
5 GPM
Configuration
Base Model
Series
PRG | G-Series PRV
Size
050 | 1/2 in
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Headline

G-Series Pressure Relief Valves

Griffco G-Series medium-flow 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. Also called bypass pressure valves.

Features & Benefits
Valve Features
  • Anti-siphon function
  • 2-port and 3-port configurations (90° and 180°)
  • Solid, robust, machined construction
  • Flanged, union, threaded and socket connection options
  • Molded Noryl top with integral hardware locking
  • 316L SS metal valve and top options
  • Molded PTFE/EPDM diaphragm
  • Adjustable up to 350 psi (24 bar)
  • 4 optional pressure ratings (springs)
  • Valve sizes from 1/2" to 4" or DN 15 to DN 100
  • Tamper-resistant adjustment screw
  • High-temperature option up to 300°F (149°C)
Griffco Benefits
  • High reliability at affordable price
  • Long diaphragm life
  • Wide range of valve materials
  • Multiple diaphragm material options
  • Factory or field settable
Additional Notes
Available Sizes
  • 1/2" to 4" or DN 15 to DN 100
Wetted Materials
  • PVC
  • CPVC
  • Polypropylene
  • PVDF
  • PTFE
  • Halar®
  • 316 SS
  • Alloy 20
  • Hastelloy® C
Performance
MPN Size (Inch) Size (Metric) Max Flow
Pulsating (GPH)
Max Flow
Pulsating (LPH)
Max Flow
Continuous (GPM)
Max Flow
Continuous (LPM)
Max Pressure (PSI) Max Pressure (BAR)
PRG-050 1/2" DN 15 300 1,135 21 80 350 24
PRG-075 3/4" DN 20 300 1,135 21 80 350 24
PRG-100 1" DN 25 500 1,890 26 98 350 24
PRG-155 1-1/2" DN 40 1,200 4,542 63 238 250 17
PRG-200 2" DN 50 2,350 8,892 120 473 250 17
PRG-300 3" DN 80 5,200 19,600 270 1,020 250 17
PRG-400 4" DN 100 5,200 19,600 270 1,020 250 17
Performance
Flow Max
21 GPM
Design
Mechanical Connections
1/2"
2D Drawing
PRG290-2Port90-Threaded-PRV(1.5-2)(US).pdf PRG290-2Port90-Socket-Metric-PRV(DN15-DN25)(Intl).pdf PRG290-2Port90-Socket-Metric-PRV(DN40-DN50)(Intl).pdf PRG290-2Port90-Threaded-Metric-PRV(DN15-DN25)(Intl).pdf PRG290-2Port90-Threaded-Metric-PRV(DN40-DN50)(Intl).pdf PRG290F-2Port90-Flanged-PRV(0.5-1)(US).pdf PRG290F-2Port90-Flanged-PRV(1.5-2)(US).pdf PRG290F-2Port90-Flanged-Metric-PRV(DN15-DN25)(Intl).pdf PRG290U-2Port90-Union-PRV(0.5-1)(US).pdf PRG290U-2Port90-Union-Metric-PRV(DN15-DN25)(Intl).pdf PRGF-3Port180-Flanged-PRV(0.5-1)(US).pdf PRGF-3Port180-Flanged-Metric-PRV(DN15-DN25)(Intl).pdf PRGU-3Port180-Union-PRV(0.5-1)(US).pdf PRG2-2Port180-Socket-PRV(0.5-1)(US).pdf PRG2-2Port180-Socket-PRV(1.5-2)(US).pdf PRG2-2Port180-Threaded-PRV(0.5-1)(us).pdf PRG2-2Port180-Threaded-PRV(1.5-2)(US).pdf PRG2-2Port180-Socket-Metric-PRV(DN15-DN25)(Intl).pdf PRG2-2Port180-Socket-Metric-PRV(DN40-DN50)(Intl).pdf PRG2-2Port180-Threaded-Metric-PRV(DN15-DN25)(Intl).pdf PRG2-2Port180-Threaded-Metric-PRV(DN40-DN50)(Intl).pdf PRG1-3Port180-Socket-PRV(0.5-1)(US).pdf PRG1-3Port180-Threaded-PRV(0.5-1)(US).pdf PRG1-3Port180-Socket-Metric-PRV(DN15-DN25)(Intl).pdf PRG1-3Port180-Threaded-Metric-PRV(DN15-DN25)(Intl).pdf PRG2F-2Port180-Flanged-PRV(0.5-1)(US).pdf PRG2F-2Port180-Flanged-PRV(1.5-2)(US).pdf PRG2F-2Port180-Flanged-Metric.PRV(DN15-DN25)(Intl).pdf PRG2F-2Port180-Flanged-Metric.PRV(DN40-DN50)(Intl).pdf PRG2U-2Port@180-Union-PRV(0.5-1)(US).pdf PRG2U-2Port180-Union-PRV(1.5-2)(US).pdf PRG2U-2Port180-Union-Metric-PRV(DN15-DN25)(Intl).pdf PRG2U-2Port180-Union-Metric-PRV(DN40-DN50)(Intl).pdf PRG5-2Port180-Flanged-PRV(3-4)(US).pdf PRG5-2Port180-Flanged-Metric-PRV(DN80-DN100)(Intl).pdf PRG290-2Port90-Socket-PRV(0.5-1)(US).pdf PRG290-2Port90-Socket-PRV(1.5-2)(US).pdf PRG290-2Port90-Threaded-PRV(0.5-1)(US).pdf PRGU-3Port180-Union-Metric-PRV(DN15-DN25)(Intl).pdf
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