Contact Info

Plot No. 6234, Road No. 62, G.I.D.C., Sachin, Surat - 394230 Gujarat, India. +(91) 9904000336 +(91) 9904000342 sales@unitechvalves.com rajesh@unitechvalves.com

+91 9904000336

Unitech Valves & Automation
+(91) 9904000336

Centric Wafer Body Butterfly Valve

Centric Wafer Body Butterfly Valve Centric Wafer Body Butterfly Valve Centric Wafer Body Butterfly Valve
Centric Wafer Body Butterfly Valve
Centric Wafer Body Butterfly Valve
Centric Wafer Body Butterfly Valve

Centric Wafer Body Butterfly Valve

Technical Specification

Design & Manufacturing Standard API 609 / BS EN-593 / IS13095 / ASME B16.5 / ISO 7005
Testing Standard API 598 / API6D / BSEN 12266 - 1
Valve Face To Face Dimensions Category A API 609 / IS13095 / EN593 / ISO5752 Tab 5
Top Flange Drilling ISO 5211
Flange Standard DIN EN 1092 - PN6, PN10, Class 150, BS10 Tab D&E, IS6392, Tab 11 / 17, JIS 5K / 10K

Material of Construction

Body : Cast Iron, ASTM Al26 Class B IS 210 FG 260 Ductile Iron, ASTM A 395 (60-40-18) WCB (CS) ASTM A 216 Stainless Steel (CF8M / CF8) ASTM A 351M / 351. Disc : Cast Iron, ASTM Al26 Class B IS 210 FG 260 Ductile Iron, ASTM A 395 (60-40-18) WCB (CS) ASTM A 216 Stainless Steel (CF8M / CF8) ASTM A 351M / 351 Alluminium Bronze, Duplex, Super Duplex *DISC also available with Rubber Lining in EBBONITE / EPDM / NBR / NYLON / HYPLON (with Gurranted Spark Test Pass). Seat : EPDM / White EPDM (FOOD GRADE) BUNA - N / White - BUNA N (Food Garde) (NITRILE - NBR) Viton, Hyplon, Butyle, Silicon, Neoprene, Natural Rubber. Stem : Stainless Steel ASTM A 479 TYPE 410 Stainless Steel ASTM A 276 TYPE 316 Stainless Steel ASTM A 276 TYPE 304 Duplex, Super Duplex, Monel, Bronze. Stem Bushing : PTFE, ACETAL Oil Seal (Stem Seal) : EPDM Washer : SS304 Retaining Circlip : Spring Steel

Feature

→ Stem : Stem Precision double "D" disc to stem connection drives the disc without the need for screws or pins. The close tolerance, double "D" connection that drives the valve disc is an exclusive feature of the Pascal valve. Disassembly of the Pascal stem is just a matter of pulling the stem out of the disc. → Stem Retaining : The stem is retained in the body by means of a unique stainless steel Spirolox retaining ring, manufactured from stainless steel as standard. → Top Plate : Top plate drilled to fit iso 5211 dimensions. All handles, gear operators and pneumatic actuators are designed to mount directly. → Stem Bushing : An Upper stem bushing, retained by a stainless steel ring, is provided to absorb actuator side thrusts and is PTFE as standard. → Steam Seal : Double "U" cup seal design is self-adjusting and gives positive sealing in both directions. Keeps environmental contaminants from entering the stem bore. → Body : One piece wafer or lug style allows for ease of assembly and maintenance. → Seat : Pascal's Replaceable tongue and groove seat design provides complete isolation of flowing media from the body. The seat also features a moulded o-ring which eliminates the need of flange gaskets. → Disc / Stem : One piece design. The disc edge is spherically machined and hand polished to produce a bubble tight shut off, minimum torque, and longer seat life. For erosion and abrasion resistance.

All Dimensions are in mm Unless Specified

Valve Size ∅A F/F C D Top Mounting Flange ∅G H J K Bolting Dia
Inch Din E No. of Holes Hole Dia ASME B16.5 CD ISD 7005 CD
1.5 40 71.80 43 87 47 F05 4 8 12 8 30 - 98.40 110
2 50 91 43 113 59 F05 4 8 14 10 29.40 30.98 120.70 125
2.5 65 96.80 46 110 61 F05 4 8 14 10 30 48.741 139.70 145
3 80 116.80 46 128 73 F05 4 8 14 10 30 66.42 152.40 160
4 100 149 52 154 91 F07 4 9 16 11 31.40 90.64 190.50 180
5 125 168.90 56 169 105 F07 4 9 19 13 32 115.10 215.90 210
6 150 202 56 189 122 F07 4 9 19 13 30 140.23 241.30 240
8 200 250 60 214 146 F07 / F10 4 / 4 9 / 11 22 16 30 189.53 298.50 295
10 250 308 68 251 185 F10 4 11 28 20 32 240.99 362 350
12 300 361.40 78 289 241 F10 4 11 30 22 32 289.68 431.80 400
14 350 413 78 340 262 F12 4 14.50 35 27 52 325.65 476.30 460
16 400 474 102 373 294 F12 4 14.50 35 27 52 374.88 539.80 515
18 450 528 114 407 219 F16 4 21 47 36 59 424.97 577.90 565
20 500 582 127 436 254 F16 4 21 49 36 59 473.25 635 620
22 550 634 127 464 381 F16 4 21 49 36 59 525.88 692.10 -
24 600 690 154 494 422 F16 4 21 59 46 80 517.61 749.30 725

Torque Rating (NM) for Rubber Line Wafer Butterfly Valve

Valve - 1.5" 2" 2.5" 3" 4" 5" 6" 8" 10" 12" 14" 16" 18" 20" 22" 24"
Full Rated 3.5 7 7 13 14 29 44 58 102 164 269 351 418 659 769 996 1091
Pressure 7 8 8 14 18 30 47 65 118 183 317 401 504 825 957 1295 1412
Valve △P Bar 10 8 8 14 18 30 48 66 122 198 337 450 585 989 1144 1684 1760
(PSI) 12 12 12 18 23 34 53 73 131 218 369 540 702 1186 1373 2189 2288
- 16 17 17 22 32 45 65 110 210 319 468 800 1025 1730 2002 2845 3080

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