Accumulated air can cause catastrophes to the pipeline systems. Generation of vacuum leads to pipeline implosion or pressure transients. The preventive course is use of efficient Air Release valves &....
Accumulated air can cause catastrophes to the pipeline systems. Generation of vacuum leads to pipeline implosion or pressure transients. The preventive course is use of efficient Air Release valves & use of Anti-Vacuum Valves at the critical locations of the pipeline that are prone to vacuum generation. The R & D Multiple’s Anti- Vacuum valves are designed & manufactured to be extremely responsive & sensitive to the pressure decrease in the line. They instantly allow the entry of sufficient quantity of air at the slight hint of the inception of vacuum & preclude the possibility of vacuum build–up.
Material Options: C.I., S.G.I., C.S. (WCB) for Body & Cover, Bronze Dashpot & Seat Ring & Guide Bushes & SS Shaft, Pins, Links & levers.
Hydraulic Dashpot arrangement to eliminate slam in closing of the AVV.
Externally adjustable Counter-weight arrangement to set the closing torque.
Large cowl type covered valve body eliminating any possibility of internal assembly being tampered-with.
Provision for mounting of an isolating sluice valve & Air Release valve on the body of the AVV is given.
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SPECIAL FEATURES :
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Large aero-dynamic flow passages ensuring quick entry of large volumes of air.
Resilient seat fixed into the Valve Body giving drop-tight shut-off during normal operation.
Critically balanced dashpot, cwt & disc assemblies ensuring that with slightest hint of vacuum formation in the pipeline, the disc opens to allow entry of large volume of air.
Sturdy, robust cast construction of the valve body & disc. Body provided with swirl busting ribs.
Non-Ferrous liner bush bearings provided for shaft & pins at all rubbing joints. This minimizes friction, enhances the availability of the valve & increases its service life.
Company Details
We are one of the leading manufacturers of valves used in waterworks applications all over India. Founded over 3 decades ago, we have developed a wide product range over the years. We make valves up-to 3.5 meters size & 40 bar pressure ratings. A wide variety of operators & actuators as drives & many accessories are also offered to make the valve versatile & user friendly. The materials offered to suit customer specifications range from Cast Iron, Carbon Steel, Stainless steel & other corrosion resistant/ high strength alloys. We have well equipped plants in Pardi, Gujarat. Knowledge, skill & hard-work are our fundamental strengths. We also have a wide & conveniently located vendor base for patterns making, foundry & machining operations. Approvals from almost all the major government, semi-government & private sector customers, consultants & contractors in the power generation, water supply & sewage treatment, irrigation, plant water handling & a well spread marketing network all over the country ensure that we are accessible & approachable for nearly every requirement. Thousands of successful installations all over the country over the last three decades are a testimony to our dedication, commitment & expertise. Our valves have a reputation for quality and reliability. This long established reputation is maintained by modern design and manufacturing techniques. R&D valves are the product of choice for some of the largest infrastructure companies in the country.
Nature of Business Manufacturer / Exporter / Supplier / Retailer
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