Boiler Accessories and Mountings

6. Butterfly Valve

Class available Sizes
150# 1” to 40”
300# 1” to 24”

gate-valve

A). Centre disc lug type butterfly valve.

Technical details& features

  • Design standard: API:609 / IS:13095
  • Pressure Rating : 10 BAR Max (140 PSI)
  • Temp. Rating : Material Will be Selected According to Services
  • The unique Centre Line seat and disc design insures positive valve sealing while maintaining low seating torque
PART NAME MATERIAL
Body C.I./ C.S. / S.S.304 / S.S.316 with Integral Moulded EPDM/Viton Rubber Seat on Body
Disc S.G. Iron (Black Epoxy Powder Coated & Nylon Coated) C.S. / S.S.304 / S.S.316
Stem AISI 410 / S.S.304 / S.S.316
‘O’ Ring Nitrile / EPDM / Viton
Lever M.S./ S.S./ Cast Iron

B). Butterfly valve offset disc

Technical details& features

  • Design standard: API:609 / BS:5155 / MSS SP67 & ISO 5752
  • Pressure Rating : 16 BAR Max (140 PSI)
  • Temp. Rating : Material Will be Selected According to Services
  • End Connection : F/E Drill as per Table-D,E & F or BS:4504, PN-10, PN-16 Table 6,7, & 8 of IS:6418 Table11,15 & 17 of IS:6392

gate-valve

PART NAME MATERIAL
Body C.I./ WCB / S.G.I / CF8 / CF8M
Disc C.I./ WCB / S.G.I / CF8 / CF8M / AB-2
Shaft S.S.410/S.S.304 / S.S.316
Disc Seat Nitrile/ EPDM / Silicon / Viton / Hyplon
‘O’ Ring Nitrile/ EPDM / Silicon / Viton / Hyplon
Flow Control Lever M.S. Fabricated
Scale Plate M.S. Fabricated
Brg. Bush G.M./ Bronze / PTFE / GF-PTFE / GFT / S.S.304 / S.S.316
Clamping Ring G.M./ Bronze / M.S. / S.S.304 / S.S.316
Bottom Cover G.M./ Bronze / M.S. / S.S.304 / S.S.316 / C.I. / WCB
Gland Packing Asbestos/ PTFE / Grafoil
Gland Bush S.S.410/ S.S.304 / S.S.316
Body Seat S.S.410/ S.S.304 / S.S.316