DQ Marine

Marine Equipment & Technical Supplies

TECHNICAL DATASHEET Issued 2026-08-21

DQ MARINE PRODUCT DATA

Marine Thread Air Pressure Reducing Valve CB/T3656-94

Category
GB/CB/CBM Valve
Origin
China
Marine Thread Air Pressure Reducing Valve CB/T3656-94

Product Overview

DQ Marine supplies marine equipment and technical products for shipyards, vessel operators, offshore projects and industrial buyers worldwide.

Key Specifications

Category GB/CB/CBM Valve
Model / SKU marine-thread-air-pressure-reducing-valve-cb-t3656-94
Standard CB/T3656-94
Weight / Size DN15~DN150
Origin China

Technical Information

China Marine Thread Air Pressure Reducing Valve CB/T3656-94:

Marine Air Pressure Reducing Valve is used for marine compressed air pipe system. It can keep outlet pressure stable.

Technical Specification:

Standard:CB/T3656-94

Nominal Size: DN15~DN150

Inlet Pressure: 1.0~3.0Mpa

Outlet Pressure:0.05~1.0Mpa

Pressure Class Inlet Pressure P1 (Mpa) Outlet Pressure P2(Mpa)
A 3.0 1.0~0.7
B 3.0 <0.7~0.2
C 1.0 0.4~0.05

Main Parts & Material:

Body-ZHSi80-3

Bonnet- Cast Steel

Spring-60Si2MnA

Film-Rubber

Main Size(mm):

nominal diameter structure dimension male thread dimension weight
(kg)
inlet outlet
DN1 DN2 L H h D1 D2 D3 L1 L2 D3 D4 D5 L3 L4
15 20 210 263 99 M36×2 33 22 22 5 M39×2 36 25 23 5 6.57
20 25 229 395 121 M39×3 36 25 23 5 M48×3 45 32 26 6 22.3
25 32 229 395 121 M48×4 45 32 26 6 M56×4 53 38 28 6 27.3