Model 6987

Description

The Model 6987 is a heavy duty, high pressure, self-contained back pressure/relief regulator for controlling fluid pressure between 50 and 1050 psig (3.4 and 72.35 Barg) setpoint levels. Pressure builds up to 20% above setpoint pressure are possible. The body design is an angle configuration with a side inlet and bottom outlet. Available options include flanged end connections, stellited seating surfaces and NACE construction.

Inlet Design Pressure

• Up to 1500 psig (103.4 Barg)

Outlet Pressure

• 50 psig (3.44 Barg) to 800 psig (55.2 Barg)

Line Sizes

• 1/2" (DN15)
• 3/4" (DN20)

End Connections

• Standard: NPT female
• Opt-30: 300# or 600# RF flanges
• Opt-32: Extended Nipples
• Opt-33: Third Body Connection

Material Combinations: Body / Diaphragm Case / Spring Chamber

• CS/CS
• SST/CS

CS = Cast Carbon Steel 
SST = Cast Stainless Steel 

Features

• High Pressure: High inlet and outlet pressures; high pressure drops.
• Adjustment Ease: Ball bearing reduces frictional forces and assures proper transmission of forces.
• Wide Setpoint Range: Six range springs from which to select.
• Third Body Connection: Optional. Allows in-line, flowthru installation.