Model PGR-1

Description

Model PGR-1 is high performance, pressure loaded diaphragmtype, flow-to-open pressure reducing regulator. Design includes an internal pressure balancing piston-cylinder that provides high flow capacity. The internal trim design allows the same basic unit to cover a broad range of pressure settings. Performance meets or exceeds that of competitive pressure loaded or pilot-operated designs. The PGR-1 regulator is applied primarily in clean natural gaseous service and fuel gas - sweet or sour.

Inlet Design Pressure

• 10–400 psig (0.68 – 27.6 Barg)

Outlet Pressure

• 2.0" WC – 200 psig (13.8 Barg)

Line Sizes

• 1" (DN25)
• 1-1/2" (DN40)
• 2" (DN50)
• 3" (DN80)
• 4" (DN100)

End Connections

• Female NPT (screwed) 1", 1-1/2, & 2" sizes only
• ASME Flanged: 125#, 250# 3" & 4"sizes only
  • - 150#, 300#, 600# all sizes.

Material Combinations: Body / Cover Dome

• DI/DI
• CS/CS
• SST/SST

DI = Ductile Iron
CS = Carbon Steel
SST = Stainless Steel

Features

• Versatile: Four basic materials with multiple trim material combinations to select from.
• Tight Shutoff: Multiple composition materials provide Class IV and Class VI inboard leakage rates. Designed as a soft-seated valve.
• Capacity: Highest in the industry. Allows smaller body sizes than competitors in majority of applications.
• Droop: Highly accurate outlet pressure control, due to absence of range spring in main valve design, provides almost zero “droop effect”.
• Trim Design: FTO - pressure balanced trim results in unmatched sensitivity and stability. Internals are cage-contained within easily removable quick change trim.
• Heavy-Duty Guiding: Both top and bottom guided to maintain stability and increased diaphragm life.
• Failure Position: Fails closed on loss of loading pressure. Fails open on loss of P1 or P2 pressures with loading pressure yet applied.
• Remote Venting: Spring Chambers on the pilot and the stabilizer include FNPT connection for remote venting of hazardous or explosive gaseous service.