PTFE Worm Gear Wafer Butterfly Valve1
PTFE Worm Gear Wafer Butterfly Valve2
PTFE Worm Gear Wafer Butterfly Valve3
PTFE Worm Gear Wafer Butterfly Valve4

PTFE Worm Gear Wafer Butterfly Valve

Size Range: 2"-48'' / DN50-DN1200

Pressure: PN10/16/150LB

Body Materials: WCB/CF8/ CF8M/CF3M

Seat Materials: FEP/PFA/PTFE

Disc Materials: WCB/CF8/ CF8M/CF3M

Introduction

Product advantages:

Applicable medium:Water, weak acid and alkali, air, steam, oil, etc.

Application field: Petroleum, Chemical industry, Medicine, Environmental protection, etc

1. The valve body is a precision casting valve body with WCB material up to standard and fine appearance. Each batch of castings has a heat number mark to facilitate production tracking and ensure material inspection.

2. The valve seat is integrally molded and then machined to ensure accuracy and sealing.

3. The sealing pair is made of FEP/FEP or other material combinations, with small friction coefficient and low opening and closing torque.

4. The packing is made of PTFE material, with good sealing performance and easy maintenance and replacement.

5. The butterfly plate and valve stem are designed as an integrated structure, which can prevent the internal parts from flushing out of the valve body due to pipeline pressure fluctuations. The structure is compact and safe to use.

6. Four levels (butterplate circumference, shaft head end face, valve shaft radial direction, valve seat) are loaded with elastic seals to ensure zero leakage inside and outside the valve.

7. The valve body is electrostatically sprayed with epoxy resin, and the spray thickness reaches 250μm.

Parameters

Parameter Information:
Wafer Butterfly Valve

1. Executive standard:

Name Design and manufacture Face to face Length Pressure Test  End Flange 
Reference standard GB/T 12238 GB/T 12221 GB/T 13927 HG/T 20592
API609 API609 API598 ASME B16.5
      ASME B16.47-A

2. Material of Main Parts:
Name Body Seat Disc Stem
Material WCB+F46/PFA/PTFE WCB+F46/PFA/PTFE 2Cr13 DI/304

3. Dimensions:
SIZE   PN10/16 150LB
DN NPS L ΦD1 n-Φd ΦD1 n-Φd
50 2'' 43 125 4-18 120.7 4-19
65 2  1/2'' 46 145 8-18 139.7 4-19
80 3'' 46 160 8-18 152.4 4-19
100 4'' 52 180 8-18 190.5 8-19
125 5'' 56 210 8-18 215.9 8-23
150 6'' 56 240 8-22 241.3 8-23
200 8'' 60 295 8-22/12-22 298.5 8-23
250 10'' 68 350/355 12-22/12-26 362 12-26
300 12'' 78 400/410 12-22/12-26 431.8 12-26
350 14'' 78 460/470 16-22/16-26 476.2 12-29
400 16'' 102 515/525 16-26/16-30 539.7 16-29
450 18'' 114 565/585 20-26/20-30 577.8 16-32
500 20'' 127 620/650 20-26/20-33 635 20-32
600 24'' 154 725/770 20-30/20-36 749.3 20-35
700 28'' 165 840 24-30/24-36 863.6 28-35
800 32'' 190 950 24-33/24-39 977.9 28-41
900 36'' 203 1050 28-33/28-39 1085.8 32-41
1000 40'' 216 1160/1170 28-36/28-42 1200.2 36-41
1200 48'' 254 1380/1390 32-39/32-48 1422.4 44-41

 
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