BP3-1A01B5C111

The BP-3 Series is designed for either liquid or gas service in instrumentation systems. Similar in design to pressure reducing control regulators which regulate outlet pressures, back pressure regulators control the inlet pressure.

Additional information

Body Material

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Port Configuration

A, B, C, D, E, F, G, H, I, J, K, L, M, O, P, U, V

Process Port Types

0 1 ⁄8˝ FNPT (1 ⁄8˝ FNPT gauge ports), 1 ¼˝ FNPT (¼˝ FNPT gauge ports), 2 ¼˝ Tube stub, 2” long (¼˝ FNPT gauge ports), 3 ¼˝ Sch 80 Pipe stub, 4” long (¼˝ FNPT gauge ports), 4 3 ⁄8˝ FNPT (¼˝ FNPT gauge ports), 6 ½˝ Tube stub, 2” long (¼˝ FNPT gauge ports), K ¼˝ Sch 40 Pipe stub, 4” long (¼˝ FNPT gauge ports)

Cavity Finish

1 < 25Ra

Actuator Material

B. CF PTFE, C. Polyimide (metal knob standard), D. Viton®, I High density PTFE K, Kalrez®, QPEEK™

Flow Coefficient (Cv)

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Control Range

B 0–6 psig, C 0–10 psig, D 0–25 psig, E 0–50 psig, G 0–100 psig, I 0–250 psig, J 0–500 psig, K 0–1000 psig (BP-6 Topworks), W 0–750 psig

Diaphragm Type

1 Standard diaphragm, 4 Vacuum assist spring, standard diaphragm

Diaphragm Facing/Backing

1 PTFE / Hastelloy® C-276, 1 PTFE /metal backing, 6 Tefzel® ring / metal backing, 7 Viton® / metal backing

Cap Assembly

1 Standard, 4 Panel mount, 8 Tamperproof, C Metal knob, panel mount, E Tamper proof, panel mount, G Metal knob, H ¼˝ FNPT dome loaded, L BP-6 Top Works, stainless steel, O BP-6 Top Works, panel mount, stainless steel

Optional Certificate

A. EB33 (oxygen cleaning), B. EB5 cleaning, D. Helium leak test, E. Pressure test certificate, F. Certificate of Conformity, G. CMTR