National Engineering

Mankundu, Hooghly, West Bengal

Gate Valves Conform to Api-600 and 6d Provide with Smooth Machined Full Bore. Full Opening of Wedge Eliminates Additional Pressure Drop Across the Valve. Long Screwed-in Replaceable Seat Rings Ensure Perfect Tightness for a Longer Period of Service. in Case of High Temperature and High Pressure Valves Seat Rings are Either Integral with Body or Seal-welded for Maximum Perfection and Safely. gate Valves are Provided with Properly Machined and Lapped Backseat to Facilitate Replacing of Gland Packing in Stream While Fully Open. Availability of Solid Wedge Designs Offer Maximum Option for Suitable Selection. Gasket and Gland Packing Material are Desired Considering Service Condition like Temperature, Corrosion, Pressure/vacuum and other Applications. Gate Valve Ensure Smooth Operation, Tight Shutoff, Reliability, Maximum Safety and Longer Life. Available with Varied Operation Options like Hand Wheel, Manual Gear and Electrical Actuator. technical Specification: manufacturing Standard : Bs 5351 / Api 6d testing Standard : Api 598 material of Construction : Cast Iron is 210, Gr. Fg 200/220/260, Cast Carbon Steell Astm 216 Gr.wcb, Cast Steel Astm 352, Gr.lcb & Lcc, Cast Stainless Steel Astma 351 Cf8/cf3/cf8m/cf3m, Alloy 20 Astm A351 Gr Cn7m Forged Carbon Steel Astm a 105, Duplex and Hastelloy. design Type : Bolted Bonnet Solid/ Flexible Wedge, O. S & Y Type size Range : 1/4” Through 24” end Connection : Flanged Ends, Screwed Ends to Npt/bpt & Socket Welded to Ansi b16.11 engineering Operations : Lever Operated, Gear Operated, Electrical Actuator Operated, Pneumatic.

• BUTTERFLY VALVE

We are offering Butterfly valves are reliable, maintenance free, tight shutoff, and control valves. it can be utilized universally. its application range includes, process in the chemical, pharmaceutical, power, plant, paper, sugar, drilling rigs, heating and air conditioning, cooling, water, water treatment plants, and even in the construction industries for compress air, water, fuel, oils, gases, slurries with suitable seat (lining) and disc material for a wide range of pressure and temperature. technical spec. : manufacturing standard bs 5155 / api 609, awwa c 504. Material Of Construction : Cast Iron IS 210 , Gr. FG 200/220/260, Cast Carbon Steell ASTM 216 Gr.WCB , Cast Steel ASTM 352, Gr.LCB and LCC Cast Stainless Steel ASTMA 351 CF8/CF3/CF8M/CF3M, Alloy 20 ASTM A351 Gr CN7M Forged Carbon Steel ASTM A 105 Duplex and Hastelloy Design type : slim seal, wafer type, double flanged type. Engg. operations : lever operated, gear operated, electrical actuator operated, pneumatic.

Ball valves are been majorly used by various industries in india & globally. ball valves are available in regular port, full port, & multi port. ball valves are smooth machined and strait through flow area totally avoid pressure drop across the valve. we have also design specialty ball valve for various projects. technical specification : manufacturing standard : bs 5351 / api 6d testing standard : bs 6755 / api 598 material of construction : cast iron is 210 , gr. fg 200/220/260, cast carbon steell astm 216 gr.wcb , cast steel astm 352, gr.lcb & lcc cast stainless steel astma 351 cf8/cf3/cf8m/cf3m, alloy 20 astm a351 gr cn7m forged carbon steel astm a 105 duplex and hastelloy. design type : one piece design, two piece design, three piece design size range : ½? to 18? end connection : screwed end, flanged end, weld & t.c. end engineering operations : lever operated, gear operated, electrical actuator operated, pneumatic.

We are Offering Globe Valve. Globe Valve are Meticulously Designed and Provided with Threaded Replaceable Seat Having Full Flow Area Ensures Smooth Flow and Reduce Pressure Drop Across the Valve to Minimum. Weld Deposited Seat and High Temperature Packing Material are Provide for Superheated Steam and High Temperature Oil and Fluids to Ensure Trouble Free Service and Longer Life. Globe Valve are Available with On- Off Disc, Control Disc and Parabolic Disc Designs. Technical Specification : Material of Construction Cast Iron is 210 , Gr. Fg 200/220/260, Cast Carbon Steell Astm 216 Gr.wcb , Cast Steel Astm 352, Gr.lcb & Lcc Cast Stainless Steel Astma 351 Cf8/cf3/cf8m/cf3m, Alloy 20 Astm A351 Gr Cn7m Forged Carbon Steel Astm a 105 Duplex and Hastelloy. Design Type : Bolted Bonnet Renewable Seat O. S. & Y Type Size Range : ½? to 20? End Connection : Flanged Ends, Screwed Ends to Npt/bpt & Socket Welded to Ansi B16.11 Engineering Operations : Lever Operated, Gear Operated, Electrical Actuator Operated, Pneumatic.

We are offering Pinch Valve. Pinch valve is a modified version of laboratory pinchcock. a rubber sleeve is protected under a cast iron casting. the fluid passing through does not come in contact with either body covering or any other metal parts of the valve except the sleeve. hence the body and other metal parts are almost permanently not subjected to the corrosive action of the fluid. the flow through the valve is straight and full as that of a pipeline, when the valve is fully open. further, the collar of the sleeve eliminates gasket. the valve is simple hand wheel operated of rising wheel type. therefore the operation of the valve is just simple as other wheel operated valve. the in-between stoppage will allow the desired throttling. thus the valve offers positive control over flowing media.

We are offering Knife Edge Gate Valve. Sludge, slurries, powders, problems fluids that challenge today?s pulp and paper, chemical, textile, sewage, plants and sugar mills. we meets this challenge, by refining the knife gate valve. a precision-buffed knife plate cuts even the heaviest sludge, sharply and without erosion. one-piece trim provides corrosion-resistant, hi performance shut-off over a long service life. compact, lightweight knife gate valves have been handling industry's problem fluids dependably for many years. technical spec. : body : astm a351 gr cf8/cf8m/cf3m/cn7m/astm a216 gr wcb/is 210-fg 260. gate : astm a479 ty304/316/304l/a-20. stem & piston rod : astm a479 ty304/316/304l/a. gate adaptor : astm a479 ty304/316/304l/a. gland / gland packing : sg iron, is 210-fg 260 / ptfe impregnated asbestos/apt. yoke & yoke sleeve : carbon steel / phosphor bronze. engineering operations : hacatnuda tworheel, gear operated, hydraulic, pneumatic / electrical actuator operated, chain wheel operated, lever operated.