Hand Wheel PFA lined Diaphragm Valve Weir typeTechnical Specification
Design and Manufacture Standard: ASME B16.34, HG/T 3704
Face-to-face Dimension: ASME B16.10 , GB/T 12221
Flange Standard: ASME B 16.5 ,GB/T 9119 ,DIN ,JIS
Inspection and Testing: API 598, GB/T 13927
Product Specification
Body Material: WCB, ASTM A395 , CF8 ,CF8M
Lining Material: PTFE , PFA , PO ,FEP, EPDM
Nominal Diameter: 1/2"-14"(DN15~DN350)
Pressure Range: Class150 , PN6 , PN10 , PN16
Operation Method: Manual ,Electric ,Pneumatic actuator
Products Description:
1.Youfumi lined diaphragm valve is ideally suited for shut-off, flow control and throttling of corrosive process media in either liquid or gaseous state.
Its main features are heavy-duty, robust construction, maintenance-free, easy replacement of components on site. Convenient, flexible and accurate open or close.
2.It can sustain any corrosive medium in addition to the ??molten alkali metals and fluorine elements??. It is ideal products used in chlor-alkali, industrial in organic chemicals, metal and mining, nitrogen and phosphatic fertilizers, petroleum refining, pharmaceutical etc.
3.It is not applicable for diaphragm used in medium with hard particles, which will cause diaphragm damage and leakage.
4.The working temperature cannot exceed the specified range.
5.Open the diaphragm too frequent will influence the sealing performance.
6.Lining material: PFA, FEP, GXPO etc.
7.Operation methods: manual, worm gear, electric, pneumatic and hydraulic actuator.
8.Youfumi lined diaphragm valves are available as per the needs of applications in additional sizes and other than standard materials.
Material Specification:
1.Lock screw:A320 B8
2.Body bolt: A320 B8
3.Handwheel: A216 WCB; A351 CF8
4.Sleeve: SS304
5.Bonnet: A216 WCB; A351 CF8; A351 CF8M
6. Stem nut: Brass
7.Stem: 2Cr13; A182 304; A182 316
8.Adjustable pad: SS304
9.Disc: A216 WCB; A351 CF8; A351 CF8M
10.Rubber Diaphragm: EPDM
11.Diaphragm: PFA; FEP
12.Body: A216 WCB+Lining material; A351 CF8+Lining material; A351 CF8M+Lining material
13.Nut: A194 2H; A194 8; A194 8M
14.Flat washer: 45#; A182 304; A185 316
15.Outer hexagonal screw: A197 B7; A320 B8; A193 B8M
YFM is one of the Chinese leading manufacturers of PTFE valves and Pumps, supplying corrosion-resistant FEP Valve, PTFE Valve, PFA Valve, gate valve, globe valve, check valve, ball valve, butterfly valve, plug valve, diaphragm valve, centrifugal pump and three way pipe, four way pipe, elbow pipe, direct pipe and reducing pipe and fittings, which are widely used in applications requiring corrosion resistance. Founded in 1989, YFM earned a reputation for excellence as a major supplier of corrosion -resistant forged valves for the chemical, petrochemical, oil and gas, pulp and paper, pharmacy, dyeing and military industry as well as the various architectural engineering, cooling and water supply pipeline series. YFM Co. Pioneered many designs which became industry standards, including High efficient & intelligent PTFE lining Control Valves. YFMs product lines are manufactured in two specialized manufacturing plants, including one in Wenzhou, the Town of Valves & Pumps in China, another in Fuding, Fujian Province, China. We have 300 more employees, including a group of professional engineers with long standing experience in valve design and manufacturing.