Description

SBPR-Series

Back Pressure Control Regulators

The SBPR sub atmospheric back pressure regulator is designed to provide precise upstream vacuum control. The large diameter diaphragm, aided by a vacuum assist spring, provides the ultimate in flexibility and sensitivity for sub atmospheric control.

  • 316L stainless steel or Brass (alloy 360) construction
  • Electropolished body(316L)with better than 25 Ra finish in diaphragm cavity
  • Bubble tight shutoff
  • Control range is 1-30 psig (−27.88 in. Hg to 15.3 psig)
  • Proof pressure is 2 times maximum working pressure
  • Burst pressure is 4 times maximum working pressure
  • Weight: 3.2 lbs (1.45 kg)
  • Mounting style is surface or panel (see Outline and mounting dimensions)
Maximum Temperature & Control Pressures

Seat Material Maximum Temperature* Maximum Control Range
Viton® 250° F (121° C) @ 1 – 30 psiA
Kalrez 300° F (148° C) @ 1 – 30 psiA
PTFE 200° F (93° C) @ 1 – 30 psiA

* Temperatures in excess of 175° F (80° C) require the use of a metal knob or the Tamper Proof option

Attachements

View further documentation here