Butterfly Valves

Wafer type butterfly valve with an integrally bonded elastomer liner. Requiring absolutely no form of maintenance the UNIMAC is a perfect "Fit and forget"valve.

Available with either a flangeless or lugged body,in a size range of 50-600 mm,a pressure rating of up to PN 16 and offered with latching lever or actuation as well as different combination of disc and seat materials, "UNIMAC" is a truly versatile valve.

 
Features Benifts
Integrally bonded body seat Easy And Trouble free mounting in the pipeline. No maintence. No tearing and distortion of liner. Exceptionally long seat life. Uniform sealing. Suitable for vacuum and high flow applications.
Stainless steel fully machined shaft(Optinal) PTFE coated Permanent dry lubrication. Ease of operation. Prevents corrosion on shaft.
Primary and secondary seals integral with body lining Ensures compatibility with media
Different disc and seat combination avaiable Suitable for a wide range of applications.
Weatherseal feature Atmospheric sealing to valve internals.
Spherical machined and polished disc(optional) Ensures longer seat life,easier operation and tight shut-off.
 
Applications
General Applications Continuous Working Temperature Range Maximun Working Pressure Disc Material Seat Material
Oils, fuels, water, air, gases, powders, pellets, slurries etc Hydrocarbons (Except aromatics)- 10C to 90C Other Liquids - 10C to 80C Dry Services - 10C to 60C 16 bar Epoxy coated SG iron   Black Nitrile
Brines, sea water, estuary water, marine bilge and ballast systems Liguids - 10C to 80C 16 bar Aluminium Bronze  
Steam, water, hot gases, powders, slurries and aqueous slurries of an abrasive nature Liquids - 10C to 120C Dry services - 10C to 100C 16 bar Stainless stell Periphery Polished General Purpose EPDM
 
 
 
  • O ring is provided to reduce the actuator torque and atmospheric sealing of the valve interior.
  • It is provide for up to 600 mm dia.
  • Long extended Neck for insulation purpose on request.
  • Detachable hand lever to stop misuse of valve
  • Special material combination as per buyers' request.

 
Valve size mm (Inches) 50 (2) 65 (2.5) 80 (3) 100 (4) 125 (5) 150 (6) 200 (8) 250 (10) 300 (12) 350 (14) 400 (16) 450 (18) 500 (20) 600 (24)
B 43.5 45.5 45.5 53 56.5 56.5 61 68.5 79 79 103 115 128 155
C 140 153 160 178 194 203 239 271 310 318 370 410 440 500
E - Flow control lever Standard gear unit Heavy duty gear unit   180 427 - 193 440 - 200 447 - 218 465 -   234 481 - 243 490 -   306 409 455 338 441 488 377 - 527   - - 535 - - 587 - - 790 - - 820 - - 880
F 65 78 85 105 118 144 169 237 272 342 377 447 477 547
H - Wafer flangeless Wafer lugged 103 121 110 135 130 180 161 208 193 238 220 261 273 322 328 394 378 462 438 531 489 598 532 644 580 710 685 836
N - Flow control lever Standard gear unit HEavy duty gera unit 311 152 - 311 152 - 311 152 - 311 152 - 311 152 - 311 152 - 619 267 375 619 267 375 619 - 375 - - 375 - - 375 - - 552 - - 552 - - 552
U - Flow control lever Standard gear unit Heavy duty gear unit 268 76 - 268 76 - 268 76 - 268 76 - 268 76 - 268 76 - 508 187 255 508 187 255 508 - 255 - - 255 - - 255 - - 437 - - 437 - - 437
ZN 27 47 63 83 107 136 185 234 280 328 377 424 476 573
ZF 4 10 16 23 32 45 67 88 106 130 144 163 183 220
Handwheel dia. - Standard gear unit - Heavy duty gear unit 152 - 152 - 152 - 152 - 152 - 152 - 250 300 250 300 - 300 - 300 - 300 - 578 - 578 - 578
 
Material Specification
Part Material of Contruction
Body Cast Iron to BS 1452 Gr 220
SG Iron to BS 2789 Gr 420/12
Stainless steel ; ICCF8 /ICCF8M
C/S to ASTM A216 Gr WCB
Body liner Black Nitrile
EPDM/ NEOPRENE /PTFE
Disc SG Iron to BS 2789 Gr 420/12 with EPOXY coating
AI. Bronze to BS 1400 Gr AB2/AB1
S/S to ASTM A351 Gr CF8/CF8M edge polishd
Shaft Fully machined SS 410 / SS304 / SS316
Bearing Matching O ring as required
Standard flow control lever MS Powder coated Iron to BS 2789 Gr 420/12
Torque Data - Nm*
Valve Size(mm) LinePressur(bar)
14 16
50 11.5 12.5
65 16.5 19.5
80 24.5 27.5
100 35.5 40.5
125 54.5 61.5
150 82 94
200 160.5 182.5
250 245 280
300 280 319
350 452.5 514.5
400 814 926
450 1048 1193
500 1326 1507
600 2663 3030
   
Operation
Valve Type Size Range(mm)
Flow Control Lever 50 to 300
Standard Gear Unit 50 to 250
Heavy Duty Gear Unit 200 to 600
Pressure Rating
Seat Rating Test Pressures(bar)
  Body/Disc Seat
Black Nitrile/EPDM 16 24 17.6
   
Standards
  Size(mm) Standards
Face to Face 50 to 300 BS 5155 - Wafer Short
API 609 - Category A
MSS SP 67 - Narrow Body
ISO 5752 - Short
IS 13095
350 to 600 BS 5155 - Wafer Medium
PI 609 - Category A(Except DN 350)
MSS SP 67 - Wide Body
ISO 5752 - Medium
IS 13095
Valve Design BS 5155/IS 13095 - Specification for Butterfly Valves
API 609 - Lug and Wafer type Butterfly Valves
MSS SP 67 - Butterfly Valves
ISO - Metal valves for use in flanged pipe system.Face to face and centre to face dimensions

The valves are of short pattern type and have been designed to fit between flanges without gaskets drilled to BS 10 Tables 'D','E',and 'F',ANSI 125/150, DIN PN 10/16, BS 4504(PN 10/16), Tables 6 yo 9 of IS : 6418, Table 10 to 20 of IS : 6392 and Tables 4 to 6 of IS : 1538

UNIMAC butterfly valves can be supplied with factory fitted pneumatic, hydraulic or electric actuators along with other accessories such as limit switches,manual overrides,positioners etc. to form a complete flow control package. Heavy duty gear unit are supplied for valves to be fitted with electric actuators.

Installation, Operating and Maintenance instructiontions for the are available on request.

 
 

Note : Due to constant up gradation, dimensions are subject to change by the manufacturer.

Our Products Ranges
  Ball Valves
  Gate Valves
  Check Valves
  FCS Valves
  Butterfly Valves
  Globe Valves
  Plug Valves
  Strainer
  Cast Iron Valves
  Diapham Valves
  Control Valves
  Case Study
  Knife Gate Valve
  Ball Check Valves
Contact Details

C-1/39/7, Phase-3,
Nr. Ambica Weighbridge,
Naroda, GIDC ,
AHMEDABAD-382330 INDIA

Email: info@unimacvalves.co.in
Web : www.unimacvalves.co.in