Semi PTFE-lined Butterfly Valve

【Size Range】: 2~8"(DN50~DN200）

【Pressure】: PN10, PN16, Class125

【Body Materials】: Cast Iron, Ductile Iron

【Seat Materials】: NBR, EPDM

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

【Stem Materials】: SS416, SS304, SS316

ADVANTAGES

Soft backed EPDM seat 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	JI8 5K		JI8 10K		ISO 5211			Top Flange	B1XB1
mm	in	A	B	C	L	øK	N-ød	øK	N-ød	øD	øD1	N-øG	Top Flange	B1XB1
50	2"	76	140	32	43	105	4-ø15	120	4-ø19	65	50	4-ø8	F05	9X9
65	2½"	85	152	32	46	130	4-ø15	140	4-ø19	65	50	4-ø8	F05	9X9
80	3"	95	157	32	46	145	8-ø19	150	8-ø19	65	50	4-ø8	F05	9X9
100	4"	110	176	32	52	165	8-ø19	175	8-ø19	90	70	4-ø10	F07	11X11
125	5"	125	191	32	56	200	8-ø19	210	8-ø23	90	70	4-ø10	F07	14X14
150	6"	139	202	32	56	230	8-ø19	240	8-ø23	90	70	4-ø10	F07	14X14
200	8"	175	243	45	60	280	8-ø23	290	12-ø23	125	102	4-ø12	F10	17X17
250	10"	203	283	45	68	345	12-ø23	355	12-ø25	125	102	4-ø12	F10	22X22
300	12"	238	322	45	78	390	12-ø23	400	16-ø25	125	102	4-ø12	F10	22X22