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Manual Flanged Butterfly Valve1
Manual Flanged Butterfly Valve2
Manual Flanged Butterfly Valve3
Manual Flanged Butterfly Valve4
Manual Flanged Butterfly Valve1 Manual Flanged Butterfly Valve2 Manual Flanged Butterfly Valve3 Manual Flanged Butterfly Valve4

Manual Flanged Butterfly Valve

【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


Lever operated flange butterfly valve Features

Lever operated flange butterfly valve:

Single Eccentric Disc-Shaft

Anti-Blow Out Stem


Fire safe Design

Low Friction Body Seat

Zero Leakage

Adoptive Standards

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

Product Advantage

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

6、Bundor valve strict implementation of the API598 experimental standard, for each product to implement 100% positive and negative double pressure test, guarantee delivery to customers is 100% qualified products

7、Bundor Group dedicated to the dedication of the valve for 24 years, with professional production, sales, research and after-sales team,we are your strong backing.

Standard Test

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.


Manual Flanged Butterfly Valve drawing
mm in         øK N-ød øK N-ød øK N-ød øD øD1 N-øG
65 22/1" 72 136 32 112 145 4-ø18 145 4-ø18 140 4-ø19 77 57 4-ø7
80 3" 88 146 32 114 160 8-ø18 160 8-ø18 150 8-ø19 65 50 4-ø7
100 4" 96.5 158 32 127 180 8-ø18 180 8-ø18 175 8-ø19 90 70 4-ø10
125 5" 115 179 32 140 210 8-ø18 210 8-ø18 210 8-ø23 90 70 4-ø10
150 6" 126 197 32 140 240 8-ø22 240 8-ø22 240 8-ø23 90 70 4-ø10
200 8" 161 230 45 152 295 8-ø22 295 12-ø22 290 12-ø23 115 89 4-ø14
250 10" 199 271 45 165 350 12-ø22 355 12-ø26 355 12-ø25 115 89 4-ø14
300 12" 215 305 45 178 400 12-ø22 410 12-ø26 400 16-ø25 140 108 4-ø14
350 14" 261 350 45 190 460 16-ø22 470 16-ø26 445 16-ø25 140 108 4-ø14


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No.37 Puhui Road,Beizhakou Economic Development Zone, Tianjin City, China PR

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