Swing Check Valves as per BSS-5153

FEATURES:

  • Removable Cover on top of valve body casing facilities inspection of bearing and movement of the door
  • Integral by-pass valve available if required
  • Resilient face available if required
  • Hand actuating lever available for the smaller sizes
  • Switch to complete an electrical system when the valve opens or closes available if required
  • Minimal maintenance

APPLICATIONS:

These conventional swing check valves are used in horizontal or vertical systems with rising flow to prevent flow reversal. Suitable for single pump water and sewage applications with low to high lift, and to multi-pump water applications which have low to medium lift.

DESIGN:

GMD Check Valves, incorporate modified design features from GMD Recoil Valves, angled face, and integral weight loaded door to give mechanical and hydraulic assistance towards accelerating the movement of the door.

MATERIAL SPECIFICATION:

Body, door and cover -- Meehanite Cast Iron
Seats -- Gunmetal to BS 1400
Hinge Pin -- Bronze

FLOW RATINGS:

Under conditions of severe reflux, effective non-slam performance is obtained with branch velocities up to 3 m/s. In conditions of less severity branch velocities may be increased to 4 m/s.

These flow ratings are for guidance only and subject to revision depending on the system conditions - for example, the pump lift and gradient.

MAINTENANCE:

These valves require minimal maintenance, but the following parts should be periodically inspected:

  • The hinges and door should be clear of debris to ensure free movement.
  • The hinge pin inspected for excessive wear.
  • The sump in the bottom of the valve cleaned.
  • The valve faces cleaned and inspected for cuts.
  • The hinge pin plugs inspected for leakage.
  • Valve by pass inspected for leakage (if supplied.)

VALVE NO.5002 10 BAR (MM)

SIZE A B C D E F WEIGHT (kg)
350 813 476 298 635 50 616 514
400 889 521 340 698 50 657 629
450 1067 584 378 762 64 679 902
500 1067 635 416 806 64 717 935
600 1270 757 499 933 76 775 1760
700 1400 750 510 1070 100 878 2220
800 1600 816 583 1196 100 938 2770

VALVE NO.5003 16 BAR (MM)/ VALVE NO.5004 25 BAR (MM)

Size A B C D E F WEIGHT (kg)
5003 5004
40 241 146 57 210 13 146 20 20
50 267 165 67 229 13 153 30 30
65 279 168 76 247 13 162 39 39
80 298 184 82 267 13 165 45 45
100 368 216 98 305 13 184 64 64
125 381 235 118 349 13 200 88 88
150 419 257 133 368 19 241 109 109
175 457 286 156 406 19 273 147 147
200 495 308 178 445 19 270 190 190
250 584 359 219 514 25 337 262 262
300 686 387 257 584 38 381 404 404