Soft Seated Wafer Lug Butterfly Valve

Soft seated wafer lug butterfly valve is one of the products that Waits can provide to customers around the world. Its rubber valve seat is made of natural high-quality rubber carefully selected by our professionals and can be used on food pipelines with confidence. We not only have excellent prices, but also reliable quality, as well as perfect procurement and after-sales services.

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Product Description

As a professional valve manufacturer, Waits is experienced and keeps pace with the times. The soft seated wafer lug butterfly valve designed by us has the following core design points:
1. High elasticity valve seat rubber: The rubber content of EPDM valve seat is 50%. We attach great importance to quality. The valve has been simulated for more than 10,000 times of opening and closing to ensure no leakage.
The reference properties of the valve seat are as follows: Shore A hardness/degree 72 ±3, 200% tensile stress/Mpa≥6, tensile strength MPa≥15, elongation at break/%≥350, permanent deformation at break/%≦10, tear strength/KN.m-1≥35, compression permanent deformation (70℃*22h, compression rate 25%)/%≦20.
At the same time, this wide-edge valve seat with a diameter of about 20 mm has a wider contact surface with the pipeline flange than the narrow-edge valve seat, and has better installation sealing performance.
2. The butterfly plate and the valve shaft are connected without pins to avoid leakage and corrosion caused by installing pins. Moreover, the valve shaft is easy to disassemble, which facilitates the replacement of the valve seat, reducing the cost and difficulty of maintenance and replacement.
3. The valve body is equipped with an anti-flying device, which is safer.

Implementation Standards

Design Standard	API 609, EN593, BS 5155, GOST
End Standard	ANSI B16.1 CL. 125LB and B16.5 CL. 150LB DIN 2501 PN6/PN10/PN16/, EN 1092 PN6, PN10 and PN16 AS 2129 Table D and E BS 10 Table D and E MSS SP44 CL. 150LB AWWA C207 150LB ISO 2531 PN6, PN10 and PN16 ISO 7005 PN6, PN10 and PN16
Inspection & Test	API 598, ISO 5208, EN 12266-1, GOST
Face to Face	API 609, EN 558, ISO 5752, MSS SP 67, DIN 3202
Top Flange	ISO 5211

Application

Operating Temperature	-45℃~150℃
Size	2"-80", DN50-DN2000
Working pressure / CWP	16BAR 10BAR
Shell	24BAR 15BAR
Seal	18BAR 10BAR
Air Test	6BAR 6BAR
Operating Environment	Ballast and bilge system Chemical processing Desalination plants,Drilling rigs,Drinking water Dry powder,Food and beverage,Gas plants HAVC Mining industry,Paper industry,Sand handling,Seawater,Sugar industry Thermo technical water treatment Waste water
Operator	Lever, Gear, Electric, Pneumatic, etc.
Body Material	Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, AL-Bronze, etc.
DISC	Cast Iron Ductile Iron Carbon Steel Stainless Steel AL-Bronze
STEM	2CR13 F304 F316 F51 F53 Monel K500
SEAT	BUNA NBR EPDM VITON PTFE HEPDM Neoprene Hypalon Natural rubber

Performance Features

1. The soft seated wafer lug butterfly valve is small in size, light in weight, easy to install, and easy to disassemble and maintain.
2. The structure is simple and compact, with an operating opening and closing speed of 90.
3. The torque is small during operation, which is labor-saving and light.
4. The gas test leakage is zero, and the sealing is strictly guaranteed.
5. Different component materials can be selected and applied to various media.
6. The flow characteristics tend to be linear, and the adjustment performance is good.
7. In the opening and closing test, it can withstand tens of thousands of times, which fully proves the long service life.
8. It can be used as an end valve.

Soft Seated Wafer Lug Butterfly Valve