90112022 370 MPa Brass Bulkhead Coupling ISO9001 IATF16949 GB/T 5231

Quick Detail

Product Name: Brass Bulkhead Coupling

Fitting Shape: Straight

Part No. 1: 901 12 022

Material Std: GB/T 5231

Quality: ISO9001, IATF16949

Tensile Strength: ≥ 370 MPa

GB/T 5231 Brass, 370 MPa: The body is made from brass to the GB/T 5231 wrought copper alloy standard with a tensile strength of 370 MPa or more, so the thread and hex flats hold their shape under repeated tightening and line load.

Straight Body Through The Panel: The straight body passes the air brake tube through a chassis panel or frame and clamps from both sides, so the line crosses the bulkhead without an extra union, bracket or clamp.

Description

Brass Bulkhead Coupling with a straight body for routing air brake and pneumatic lines through a chassis panel, frame or bulkhead on commercial vehicles. The straight body passes the tube through the panel and clamps from both sides, so the line crosses the bulkhead without an extra union, bracket or clamp, while the shape keeps the run in line and free of side load.

The body is made from brass to the GB/T 5231 wrought copper alloy standard, with a tensile strength of 370 MPa or more, so the thread and hex flats hold their shape under repeated tightening and line load. The coupling is produced under ISO9001 and IATF16949 quality control, with dimension, thread, material and sealing face inspection before packing, so each batch assembles the same way on the line and in the workshop.

Push-in ends seat PA11, PA12 and PU air brake tube by hand and the fitting can be released and refitted during maintenance. The brass body resists condensation, road salt and oil mist and keeps its strength and thread accuracy from cold start to hot engine bay conditions, which suits high frequency fleet maintenance and OEM replacement on bus, truck, trailer and semi-trailer air systems. Supplied as part number 901 12 022, packed neutral or with custom marking.

Specifications

Notices

Open the packaging carefully, inspect the coupling body, sealing ring and tube ends for scratches or damage, and handle gently to avoid surface scratch or seal damage. Do not pull forcibly or bend sharply during installation to avoid safety risks of connection loosening and seal cracking. Installation should be performed by qualified personnel to ensure correct assembly, stable sealing performance, and service safety.