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PR3G Series Pressure Regulator
Brand: Bestobell SteamThe PR3G is a hard seated pressure reducing and regulating valve suitable for steam applications with supply pressures up to 300 psig (20.7 bar).
The PR3G offers exceptional performance, easy in-line maintenance, and heavy duty construction for reliable, long-term operation.
Features- Bottom entry cage trim – allows trim to be threaded out for quick inspection and maintenance
- Downstream sensing port – located to reduce droop and increase accuracy and rangeability
- Larger diaphragm area – for improved sensitivity and reduced droop or proportional band
- Versatile application – in sizes from 1/2″ through 2″ (DN15 through DN50) with ranges available for reduced pressure setpoints from 5 psi to 200 psi (0.34 to 13.8 bar)
- High capacities – optimized orifice and body passage sizing leads to high flow capacities
Specifications
Brand
Sizes
- 1/2″, 3/4″, 1″, 1-1/2″, 2″ (DN 15, DN 20, DN 25, DN 40, DN 50)
End Connections
- Threaded NPT (1/2″ - 2″ / DN 15 - DN 50)
Maximum Inlet Pressure
- 300 psi (20.7 bar)
Maximum Outlet Pressure
- 200 psi (13.8 bar)
Temperature Range
- -15° F to +550° F (-26° C to +288° C)
Reduced Pressure Setpoint Ranges (psi)
- 1-1/2″ - 2″: 10 - 25, 20 - 65, 90 - 160
- 3/4″ - 1″: 15 - 45, 60 - 105, 130 - 180
- 1/2″: 10 - 55, 50 - 160, 150 - 200
- 1″: 5 - 20, 35 - 70, 95 - 140
Service
- Steam
Materials
- Diaphragm: Stainless Steel
- Spring Housing: Cast Iron
- Bottom Cap: Stainless Steel
- Seat/Plug: 316/17-4 pH
- Body: Ductile Iron, Carbon Steel, Stainless Steel
Approvals
- ATEX Directive Group II, Category 2 of Directive 2014/34/EU
- CRN - Canadian Registration Number