Size Range: 2~8″(DN50~DN200）
Pressure: PN10, PN16, Class125
Body Materials: Cast Iron, Ductile Iron
Seat Materials: NBR, EPDM, VITON
Disc Materials: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958
Stem Materials: SS416, SS304, SS316
Package: wooden case with plastic layer, wooden pallets with plastic layer, steel crates.
Features:
Single Eccentric Disc-Shaft
Anti-Blow Out Stem
Bi-Directional
Fire safe Design
Low Friction Body Seat
Zero Leakage
1.Description
Under the supervision of our skilled professionals by using advance techniques and technology, we are involved in providing superior quality flanged end butterfly valve.
This flanged end butterfly valve is available in various grades, shapes, sizes and dimensions to meet the divergent requirements of the clients. This flanged end butterfly valve is known for its hassle free and flawless performance. It is extensively used for heavy duty application and can bear harsh and tough environment. It has unique stem retention design which helps in efficient working and checking the flow of liquids and gases in different industries. Our flanged end butterfly valve is widely demanded in various water desalination plants. Furthermore, it has double and single eccentric design top mounted pad as per the ISO 5211 standard.
2.Standards for Lever operated flange butterfly valve:
Valve Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211
3.Parameters:
4.Product advantages:
(1).The length of the short structure can save raw materials and installation space, and also effectively support the strength of the pipeline
(2).The valve block is the correct movement of the gate, extrusion fast, to ensure effective sealing valve
(3).Triangle support material, guarantee the required mechanical properties
(4).According to different working conditions demand design V, triangle, or five corners and other ports, in order to meet the needs of various flow regulation
(5).No groove at the bottom to make sure no slag and full bore flow
5.Standard Test for Lever operated flange butterfly valve:
Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Seat Test: 1.1 times the working pressure with water.
Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.
Special Test: On request, any other test can be carried out according to special instruction by client.
