VALVES
Description of Valve Types
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GATE VALVE |
GLOBE VALVE |
DIAPHRAGM VALVE |
Common valve used mainly as Open/Closed for Liquids. Screwed/Flanged. Bronze/Cast /Stainless Steel. 15 mm to 600mm |
Robust Valve used to regulate flow of water & fuels. Bronze /Cast & Stainless Steel Screwed/Flanged 15mm to 600mm< |
Versatile Valve for many applications.Diaphragm changed with Valve in place.Diaphragms for Water, Fuels & Acids. Weir type for flow control or Straight through types. Flanged or Screwed.15mm to 350mm. |
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S/S BALL VALVE |
BLOCK & BLEED VALVE |
3-WAY BALL VALVE |
Body manufactured in one, two & three piece. 3-piece easily removed from pipework for repair |
For applications where product needs to removed from process without disruption to pipework |
L-Port used as a flow diverter T-Port used for draining or relieving downstream pressure |
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BUTTERFLY VALVE WAFER TYPE |
DOUBLE FLANGED BUTTERFLY VALVE |
LUGGED TYPE SCREW HOLES |
Butterfly Valves are relatively lightweight in larger sizes. Common sizes range from 50mm to 600mm and larger made to Order. Easy to install into piping systems.The body liner in smaller sizes effects a perfect seal between body & flanges. Manufactured in Cast Iron & Stainless Steel with liners & discs to suit most applications.
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DUO-CHECK VALVE |
TILTING DISC CHECK |
PISTON CHECK VALVE |
Check Valves are designed to protect pumps & equipment from harmful backpressure. Duo-Check valve can be installed in both horizontal & vertical positions. It is good engineering practice to fit a counter weight to Swing-Check & Tilting Disc Valves.
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FLOWMETERS |
Pressure&Temperature Gauge Water, Oil&Gas |
Y-STRAINER |
Flanged or Screwed type available. Used to measure liquid flow in pipelines. For water, fuel & oils. Cast Iron, stainless steel & aluminium |
Dial size to 150mm. Ranges in kpa or PSI –100 to + 10,000 in kpa. Cases in Stainless Steel Temperatures –20 to + 100c.Dampened or dry types. |
Used to strain contaminates from pipeline liquids to protect control valves & equipment. Mesh made of stainless steel Perforations ranges 0.8mm to 3.0mm. Should be drained & cleaned regularly. |
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NEEDLE VALVE |
PRESSURE REDUCING VALVE |
PLUG VALVE |
Used for fine regulation & isolation of flow to instrumentation |
Installed where it is required to reduce from one pressure to another and to maintain reduced pressure on the downstream side irrespective of fluctuations on inlet pressure or flow.. |
Quarter turn operation from fully open to fully closed provides quick action and flow is straight through the valve with no sudden alteration in shape or section so that pressure head loss due to valve is low |
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Safety Valve Flanged & Screwed – Steel – Stainless & Bronze
Safety or Pressure Relief Valves are suitable for most general applications where a Safety device is required on pipelines, pumps & vessels to automatically relieve excess pressure then reset to system design pressure to prevent ruptures and water hammer. Used on liquids & compressed air
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Pipeline Expansion Joints
Manufactured in screwed and flanged types. Single & twin sphere to absorb flexing, sound and vibration in pipelines.
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SELENOID VALVE |
KNIFE GATE VALVE |
DUCK BILL CHECK VALVE |
Robust trouble free valve for automatic control of Air, Water, Steam & Oils. Flameproof & Explosion Proof models to suit. Various voltages in normally open & closed. |
Designed to cut through media prior to closure. Suited to paper & pulp industry and light slurry such as mine tailings dams. Lightweight & easy to install |
Used on dams & weirs. Simple design no moving parts. |
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