The outstanding feature of the parallel slide design is that of maintained fluid-tightness without the aid of wedging
action. No mechanical stress is exerted between the discs, and the valve is not subjected to dangerous strains on opening
or closing.
Applications
- General purpose stop valve
- Boiler circulating pump isolation
- Feedwater heater protection
- Main steam and feedwater isolation
- Drain, vent and instrumentation isolation
- Boiler blowdown
- With V-ported outlet seat, can be used for control duties as alternative to globe valve
Nuclear duties
Features can be incorporated such as quick closure, live loaded gland, double stuffing box
with lantern ring and bleed-off point, back seat, seal welded body/cover joint.
Ratings:
ASME Class 150
to 4500
Sizes:
15 to 1200 mm (1/2 to 48 in)
Temperature Ratings:
-29°C to 593°C (-20°F
to 1100°F)
Materials:
Carbon Steel, Alloy Steel, Stainless Steel, Bronze. End Conections: Flanged, Butt
weld, Socket weld.
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