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Zhejiang Zhengfeng Valve Co.,Ltd
Tel: 86-577-67388156
Fax: 86-577-67318585
Email: sales@zfvalve.com
Contact person: DAVID
Add: Hengtong Road, Wuxing Industrial Park, Wenzhou, Zhejiang, China. 325105

EPDM Butterfly Valve

The disc material of the soft sealing butterfly valve are avalaible such as nylon coated disc, galvanized coated disc, CF8 ( SS304 ) disc, CF8M ( SS316) disc, etc.

Product Details

ZFV EPDM butterfly valve

Products features :

Type : Butterfly valve

Connecting : Double Flanged end

Size and rate : 12’’ class 150

Flange face :Rrised face

Operating Torque : 640/N.m

F-F dimension : 178mm

Finishing Painting color : Blue

Construct: Concentric type

Suitable Temperature : -29°C ~ 120°C

Suitable Presure: within 16Bar

Function : For shut off

Standard : API609

Packing: Plywooden case

Certificate : EN 3.1 certificate

Material : Body ASTM A216 WCB, Disc Nylon coated, Stem A182 F6a, Seat EPDM


Below is key points to choose properly material for soft sealing butterfly valve :

The disc material of the soft sealing butterfly valve are avalaible such as nylon coated disc, galvanized coated disc, CF8 ( SS304 ) disc, CF8M ( SS316) disc, etc. The choice of the valve disc is determined according to the medium of the customer's pipeline. Generally, if it's not corrosive, the galvanized plate is ok. for corrosive service we can choose 304 or 316 disc, also can choose nylon coated disc.


The sealing seat of the soft seated butterfly valve include NBR rubber, EPDM rubber and Viton rubber. The temperature resistance of NBR and EPDM is about 80 degrees C, and the Max. temperature resistance of Viton rubber is about 150 degrees C.


Also the NBR rubber is oil resistant, EPDM rubber is resistant to aging, and Viton rubber is resistant to weak-corrosion


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