Cast Steel Globe Boiler Crown Stop & Non Return

PRESSURE / TEMPERATURE RATING:      

In accordance with BSI, BS EN 13709 (formerly BS5160*) and ANSI specifications. For the Line Flange Connection required, refer to the Pressure Temperature Rating Chart in the Technical Data Section of our website.

FLANGED:

BS EN 1092-1 – PN10, PN25, PN16, PN40

BS 10 Tables – E, F, H

ANSI B 16.5 – Class 150

 

 

 

CONSTRUCTION:

  • Bolted cover, outside screw SDNR valve with rising spindle.
  •  These Valves should be installed with the Valve Head vertical.
  • Supplied with internal dashpot to minimise noise and wear caused by chatter.
  • Flanges will be drilled unless otherwise specified on order.

MATERIALS:

  • Body  – Carbon Steel to BS EN 10213 gr. GP240GH (WCB) 0.23%C max
  • Cover – Carbon Steel BS EN 10028 161 – 430
  • Disc – Stainless Steel Casting to ASME SA 487 CA6NM Class ‘A’
  • Seat Ring – Stainless Steel Casting to BS EN 10283 1.4408
  • Stem – Stainless Steel to BS EN 10088-3 1.4006
  • Dashpot/Cylinder – Gunmetal to BS EN 1982 CC491K
  • Gland Packing – Exfoliated Graphite

*DIM A Face to Face dimensions to BS 4312

            Nominal Size 80 100 125 150 200
 A PN 10, 16, 25, 40 305 356 406 457 533
BST E, F, H, ANSI 150 305 356 406 457 533
 B 365 430 495 610 673
C 200 250 315 400 530
Weight Kg. 40 60 96 145 225

OPTIONAL EXTRAS

  • Open and Shut Indicator
  • Locking Device
  • Gearbox

 TYPE OF APPLICATION:

  • Isolation
  • Fluid non-return

LINE MEDIA:

  • Wet/Saturated Steam
  • Condensate
  • High Temperature Hot Water
  • Medium Temperature Hot Water
  • Low Temperature Hot Water
  • Cold ‘Clean’ Water