RH-QDP-04

G 1/4 BSPP Blanking Plug (UQD04 Size)

316L SSBlanking PlugPG25

Positive-sealing blanking plug for UQD04-size G 1/4 BSPP ports: unused manifold stub-outs, spare coupling terminations, and instrumentation ports during hydro and leak-down testing. Seals on an EPDM O-ring boss seal, so it can be installed and removed repeatedly without dressing threads. 316L, passivated per ASTM A967, and cheap enough to leave installed.

Body material	316L stainless steel, machined from bar
Seal material	EPDM O-ring, 70A, peroxide-cured (PG25 / DI water compatible)
Thread	G 1/4 BSPP male per ISO 228-1, boss-seal shoulder
Working pressure	Designed to 500 psi (34.5 bar); suitable for loop hydro and leak-down testing
Temperature range	-4 to 194 F (-20 to 90 C)
Finish	Passivated per ASTM A967; cleaned, capped, and bagged
Wrench flats	9/16 in hex

$50/ ea

In-stock parts ship in 5-7 business days

PO instead? Send it over

Direct from the shop that machines it

316L stainless on every wetted surface, mill certs available on request

Cleaned, capped, and bagged for coolant service before it ships

In-stock parts ship in 5-7 business days from Van Alstyne, Texas

POs and net-30 for approved accounts; card payment by secure link