Brand Name : TOBO
Model Number : Wafer Butterfly Valves
Certification : DIN2501 (DIN2534_ISO2084)
Place of Origin : China
MOQ : 10pcs
Price : 59-89USD
Payment Terms : D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability : 300000PCS
Delivery Time : 7-10DAYS
Packaging Details : Packed in plywood wooden cases
Size : DN200
Design Standard : API 609-83
Body : 316SS
Drilling : Dual Drilled
Temperature : maximum 130°C temperature
Structure type : Resilient Seated
Disc : 316
Packing : Flexible graphite, fluorine plastic
Connection AISI 316 PN 10-16, DN100 150LB Wafer butterfly valves
General purpose, resilient seated Butterfly Valve, wafer design, 316SS body, 316SS disc,
316SS stem, EPDM seat, 10-position notch plate & lever (304SS). Rated 16 bar
Sizes- 1½” (DN40)→ 12″ (DN300)
* Options: Various seats includingNBR, viton, neoprene, EPT, silicon, hypalon. 304SS stem,
WCB or 304SS Body, Gear Operator (304SS)
A Butterfly valve is a quarter-turn rotary motion valve, that is used to stop, regulate, and start the flow. Butterfly valves are a quick open type. A 90° rotation of the handle can completely close or open the valve. Normally, they are used in systems where a positive shut-off is not required. In this article, you will learn about following types of Valve.
Large Butterfly valves are usually equipped with gearbox type actuator, where the handwheel is connected to the stem via a gearbox. This will reduce the force but at the same time reduce the speed of the operation. This type of valve should be installed in the open position. If the valve is closed during installation, the rubber seat will wedge against the valve disc and make it difficult to open.
Materials
Dimensions
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Types of Butterfly Valves Based on Body Construction
Based on the type of ends of the body butterfly valves are available in following types.
Both Flanged Ends
Wafer Type Ends
Lug Type Ends
Butt Welded Types Ends
Water Type
The wafer body is placed between pipe flanges, and the flange bolts surround the valve body. A wafer type butterfly valve is easy to installed but it cannot be used as an isolation valve.
Seat Types
Butterfly valves can be metal-to-metal seated, soft seated, or with a fully lined body and disc. The first image is of a soft seated fully lined body and disc valve. Second, is a soft seat with metal disk and the third is metal to metal seat type valve.
EPDM Seat Wafer Butterfly Valve 316SS Body / Dis / Steam Images |