FREE-VALVE’s Pneumatic Normally Closed Lined PTFE/PFA/FEP Diaphragm Valve is a special form of on-off valve, disc is a diaphragm made of corrosion-resistant soft material,the diaphragm separates the bottom body cavity from the top bonnet cavity, so that the stem, metal disc and other parts above the diaphragm are not subject to media corrosion,so fluorine lined diaphragm valve eliminate the packing seal structure, and will not produce media leakage.

Features:

1. The diaphragm of using FEP/FPA and rubber composite, suitable for variety of corrosive media.

2. 100% gas seal can be achieved to ensure no leakage in downstream.

3. No direct contact between metal parts and slurry.

4. Bi-directional and full flowing path can reduce pressure drop, weaken abrasion and prolong the service life.

 5.It is convenient to realize remote operation control.

6.The single acting cylinder can make the valve function of normal opening and normal closing

Technical Specification

1) Size Range: DN25~DN400

2) Pressure Range: Class 150 /PN10 /PN16

3) Connection Type: Flange

4) Lining Material:PTFE , PFA , FEP

5) Body material:WCB, CF8 ,CF8M

6) Pressure test:GB/T13927, API598

7) Face to Face: GB/T12221, ASME B16.10

8) Operating Mode: Manual,pneumatic,electric

Application

FREE-VALVE’s Pneumatic Normally Closed Lined PTFE/PFA/FEP Diaphragm Valve are widely used in chemical industry, medicine and other industrial sectors to achieve the cutting of acid, alkali and other corrosive media in the production process

Model：G641F46

Price:100-5000USD/set

Payment terms:TT,LC

Price terms:FOB,CIF,FCA,.CFR

Delivery time:30days

Origin:China

Wechat ID:FreeValve

Email:sales@free-valve.com