Soft seal seat wafer butterfly valve

Size Range: 2~8"(DN50~DN200)

Pressure: PN10, PN16, Class125

Body Materials: Cast Iron, Ductile Iron

Seat Materials: PTFE

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

Stem Materials: SS416, SS304, SS316

Introduction

Soft backed PTFE 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.

 

Parameters

 

SIZE A B C L JI8 5K JI8 10K ISO 5211 Top
Flange
B1XB1
mm in øK N-ød øK N-ød øD øD1 N-øG
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
Application
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