Double Shaft Butterfly Valve

【Size Range】: 2~8"(DN50~DN200）

【Pressure】: PN10, PN16, Class125

【Body Materials】: Cast Iron, Ductile Iron

【Seat Materials】: NBR, EPDM, VITON, PTFE

【Disc Materials】: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958

【Stem Materials】: SS416, SS304, SS316

ADVANTAGES

Double stem wafer butterfly valve Features

24 months guarantee
Zero Leakage
Bi-Directional
Low Torque,long life cycle
360°polished disc assures positive on-off
Epoxy coated body,smooth surface
Various kinds of materials,applicable to different medium

Adoptive Standards

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 23 years, with professional production, sales, research and after-sales team,we are your strong backing.

Standard Test

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.

PARAMETER INFORMATION

SIZE		A	B	C	L	ANSI 150B		DIN PN 10		DIN PN 16		JIS 10K		ISO 5211			Top Flange
mm	in					øK	N-ød	øK	N-ød	øK	N-ød	øK	N-ød	øD	øD1	N-øG
mm	in					øK	N-ød	øK	N-ød	øK	N-ød	øK	N-ød	øD	øD1	N-øG
40	1.5"	67	141	32	33	98.5	4-ø16	110	4-ø18	110	4-ø18	105	4-ø19	65	50	4-ø8	F05
50	2"	67	141	32	43	120.6	4-ø19	125	4-ø18	125	4-ø18	120	4-ø19	65	50	4-ø8	F05
65	2½"	75	151	32	46	139.7	4-ø19	145	4-ø18	145	4-ø18	140	4-ø19	65	50	4-ø8	F05
80	3"	95	160	32	46	152.4	4-ø19	160	8-ø18	160	8-ø18	150	8-ø19	65	50	4-ø8	F05
100	4"	111	180	32	52	190.5	8-ø19	180	8-ø18	180	8-ø18	175	8-ø19	90	70	4-ø10	F07
125	5"	129	193	32	56	215.9	8-ø22.4	210	8-ø18	210	8-ø18	210	8-ø23	90	70	4-ø10	F07
150	6"	142	207	32	56	241.3	8-ø22.4	240	8-ø22	240	8-ø22	240	8-ø23	90	70	4-ø10	F07
200	8"	170	240	45	60	298.4	8-ø22.4	295	8-ø22	295	12-ø22	290	12-ø23	125	102	4-ø12	F10
250	10"	206	270	45	68	361.9	12-ø25.4	350	12-ø22	355	12-ø26	355	12-ø25	125	102	4-ø12	F10
300	12"	238	316	45	78	431.8	12-ø25.4	400	12-ø22	410	12-ø26	400	16-ø25	125	102	4-ø12	F10