PRODUCT
4inch wafer butterfly valve factory
Size: DN25-DN1200/1.5"-48"
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Pressure: PN10/PN16/25/150LB
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Design standard : API609 ,BS EN593.MSS SP-67 BS5155
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Standard: Flange: DIN3202, DIN2501 PN10/PN16
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Face to face:API609, ISO5752,BS EN558, BS5155,
MS SP-67,DIN3202
·Standards:
|
Design & Manufacture |
Flange Connection |
Face to Face Dimension |
Test & Inspection |
|
MSS SP-67 |
DIN PN10/16/25; ANSI B 16.1 |
API609 |
API 598 |
Material:
|
No. |
Part Name |
Material |
|
1 |
Body |
Carbon Steel/Stainless Steel/Cast Iron/Ductile Iron/ Al-Bronze |
|
2 |
Disc |
Al-Bronze/CF8M/Ductile iron/WCB |
|
3 |
Seat |
EPDM/PTFE/Buna/NBR |
|
4 |
Stem |
Carbon Steel/Stainless Steel314/Stainless Steel316 |
|
5 |
Bushing |
PTFE/Lubricating |
|
6 |
O ring |
EPDM/PEFE/Buna/NBR/Nylon |
|
7 |
Pin |
SS316/SS416/SS304 |
4” wafer butterfly valve
1. Opening and closing is convenient, fast, labor-saving, has small fluid resistance, and can be operated frequently.
2. Simple structure, small size and light weight.
3. It can transport mud with minimal liquid accumulation at the pipe mouth.
4. Under low pressure, good sealing can be achieved.
5. Good adjustment performance.
Disadvantages
4” wafer butterfly valve
1. The operating pressure and operating temperature range are small.
2. Poor sealing.
Butterfly valves can be divided into offset plate type, vertical plate type, inclined plate type and lever type according to their structural forms. According to the sealing form, it can be divided into two types: soft sealing type and hard sealing type. The soft seal type usually uses a rubber ring seal, and the hard seal type usually uses a metal ring seal.
According to the connection type, it can be divided into flange connection and wafer connection; according to the transmission mode, it can be divided into manual, gear transmission, pneumatic, hydraulic and electric
