Cast Steel Parallel Slide

PRESSURE / TEMPERATURE RATING:

In accordance with BSI, BS EN 1984 (formerly BS5157) 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 PN16, PN25 , PN40

BS 10 Tables E, F, H

ANSI B 16.5 Class 150, 300

 

 

 

 

 

CONSTRUCTION:

The gland incorporates pre-compressed pure exfoliated graphite under controlled compression, with facility for adjustment, giving improved sealing and reduced maintenance.

  • The valve is fitted with a backseating device to further protect the gland packing when fully open.
  • Seats and doors are made of our special TDA58 nickel based alloy developed for high galling resistance.
  • Valves 200mm bore and over incorporate thrust bearings to reduce torque.

MATERIALS:

  • Body /Cover – Carbon Steel BS EN 10213 gr. GP240GH (WCB) 0.23%C max.
  • Seat Rings / Doors – TDA58 copper nickel silicon alloy
  • Stem – Stainless Steel to BS EN 10088-3 1.4057
  • Gland Packing – Exfoliated graphite
     Nominal Size 50 65 80 100 125 150 200 250 300
 A PN16 178 190 203 229 254 267 292 330 356
PN25 / 40 216 241 283 305 381 403 419 457 502
ANSI 150 178 190 203 229 254 267 292 330 356
ANSI 300 216 241 283 305 381 403 419 457 502
 B  368 431 490 580 743 810 1012 1250 1454
 C  200 200 250 315 400 400 530 530 530
Weight kg. ANSI 300  22 28 38 53 89 109 181 302 470
PN16 19 25 32 45 74 88 142 232 370

OPTIONAL EXTRAS:

  • Positive open / shut indication
  • Locking device
  • Drain plug and / or bypass
  • Actuator operation
  • Gearbox and remote operation

TYPE OF APPLICATION:

  • Isolation

LINE MEDIA:

  • Wet/Saturated Steam
  • High Temperature Hot Water
  • Medium Temperature Hot Water
  • Low Temperature Hot Water
  • Cold “Clean” Water