Pneumatic Diaphragm Regulating Valve

Product Overview

Pneumatic diaphragm regulating valve consists of a single-seat valve body and a pneumatic actuator. The fine single-seat valve body has compact structure, light weight, sensitive action, streamlined fluid channel, small pressure drop loss, large valve capacity, accurate flow characteristics, and easy disassembly and assembly. The pressure cage removable structural design solves the problems of traditional screw-in valve seats, difficult on-site repairs and high maintenance costs. It is suitable for occasions with strict leakage requirements, low pressure difference between the front and back of the valve, a certain viscosity and a small amount of fiber media.

Design Features

High control precision, wide adjustable range, large allowable pressure difference, and good sealing performance

Large circulation, multi-stage pressure reduction, low noise, anti-cavitation, anti-pressure and wear-resistant

Built-in balanced sealing ring, frequent opening and closing, elimination of flash cavitation, and enhanced service life

Integrated stuffing box, compensation seal, dustproof and shock-proof, smooth flow

Technical Parameters

Nominal diameter: DN15~100mm

Valve body material: carbon steel, stainless steel 304, stainless steel 316

Medium temperature: W2:-20~150℃, W3:-20~250℃, W4:-29~425℃

Valve core form: single seat, sleeve

Control mode: single-acting normally closed, single-acting normally open

Stroke (mm): 10, 16, 25, 40, 60, 100

Nominal pressure: 1.6~6.4Mpa (If you need other pressure standards, please indicate when ordering)

Sealing material: PTFE, metal hard seal, carbide

Connection method: flange, internal thread, butt welding

Control accuracy: 0.3%~1%

Input signal: 4~20mA, 0~10V, 1~5V

Flow characteristics: equal percentage characteristics, equal linear characteristics, quick opening characteristics

Main Parts Material List

Technical Parameters

Dimensions Table