Expert gate-globe-check
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Expert gate-globe-check Expert gate-globe-check Document Transcript

  • Winning Together Gate No. 02551-2005-AQ-BOM-NABCB Globe Check Valves
  • GATE VALVES Expert make Cast Steel Flex Gate Valves are Tight Sealing, Easy Operation, Isolation valves for liquid and gaseous fluids over a wide range of line pressures and temperatures. - Self adjusting flexible wedge assures tight sealing and minimizes stress concentration under varied service conditions. - Stem-wedge thrust closer to wedge centre for accurate wedge movement - Long guide ribs in the body to minimize seat wear. Gate valves are of rising stem, outside, screw and yoke (OS & Y) and with Bolted Bonnet construction. The rising stem indicates open or close position of the valve. The outside screw ensures easy lubrication and prevents corrosion and erosion by line fluids. On request, valves can be supplied with special features like NACE Requirement, Radiography, Magnetic Particle Test, LGC Test and for Oxygen service etc. BODY AND BONNET GLAND ARRANGEMENT The body is designed for strength to meet the operating The stuffing box holds a adequate packing rings to enhance gland conditions and contoured to minimize erosion and resistance to tightness and increases the life of packing rings. flow. The bonnet is provided with renewable back seat arrangement. END CONNECTION : Standard valves are offered with flanged ends (butt weld ends FLEXIBLE WEDGE provided on request) to the following standards : The one piece, case flexible wedge minimizes stress concentration and assures tight sealing over a wide range of different operating temperature and pressure conditions. Flanged - ASME B 16.5 Raised Face Butt Weld - ASME B 16.25 to suit the corresponding pipe schedule. BODY SEAT RING The seat ring is seal welded to provide a bubble tight joint. STANDARDS Design BACK SEAT ARRANGEMENT The back seat is designed to relieve back pressure on the stem - API 600 Face to face / dimensions - ASME B 16.10 Testing - API 598 packing when fully seated. Valves can also be offered with IBR certification. SEATING SURFACE Globe valves can be offered with stellite seat, if specified. Stellited ACCESSORIES seat ring provides increased resistance to ware, abrasion and Valves can be supplied with accessories like extended Stem erosion of the sealing surface. Arrangement, Gear Operation, Pneumatic and Electric Actuators, Chain Wheel Arrangement, Drain Plug and By-Pass Arrangement.
  • Class-150 Size Class-300 mm A B C A B C 15 108 210 100 140 210 100 20 117 215 100 152 215 100 25 127 200 150 165 250 150 40 165 315 200 190 300 200 50 178 360 200 216 345 200 65 190 410 200 241 425 250 80 203 465 250 283 460 250 100 229 550 250 305 550 300 125 254 650 300 381 685 350 150 267 735 300 403 790 350 200 292 1000 350 419 990 450 250 330 1260 400 457 1230 450 300 356 1450 400 502 1475 500 Approx. Material of Construction Body And Bonnet - ASTM A 216 Gr. WCB, ASTM A 352 Gr. LCB. ASTM A 351 Gr. CF8 / CF8M / CF3 / CF3M Wedge & Seat Ring - Sizes 15mm to 100mm - ASTM A 217 Gr. CA15, 125mm and above WCB with 13% Chrome Overlay. ASTM A 351 Gr. CF8 / CF8M / CF3 / CF3M Stem, Gland & Bonnet Bush - ASTM A 276 Type 410 / 304 / 316 Yoke Sleeve - Ni-Resist ASTM A 439 Gr. D2 Gland Packing - Graphite / Grafoil / PTFE Stud / Nut - ASTM A 193 Gr. B7 / ASTM A 194 Gr. 2H Hand Wheel - Carbon Steel NOTE : n dimensions are in mm. unless otherwise specified and are indicative only. All n the process of continuous improvement of our products, the data given herein is subject to change. In n Please specify the required size, material of construction, type of drive arrangement (if any), flange standard and quantity clearly at the time of placing the order.
  • GLOBE VALVES Expert make valves are tight sealing, easy operation, regulation valves for liquid and gaseous fluids over a wide range of line pressures and temperatures. Globe valves are of outside screw & yoke (OS &Y) and with Bolted Bonnet Construction. The outside screw ensures easy lubrication and prevents corrosion and erosion by line fluids. On request, valves can be supplied with special features like NACE Requirement, Radiography, Magnetic Particle Test, LGC Test and for Oxygen service etc. BODY AND BONNET GLAND ARRANGEMENT The body is designed for strength to meet the operating The stuffing box holds a minimum of 6 packing rings to enhance conditions and contoured to minimize erosion and resistance to gland tightness and increases the life of packing rings. flow. The bonnet is provided with renewable back seat arrangement. DISC AND STEM END CONNECTION : The disc provides a fine bearing on a taper seat for tight sealing Standard valves are offered with flanged ends (butt weld ends over a wide range of differential pressures. As the seating provided on request) to the following standards between disc and body seat is a narrow line contact, tight sealing can be achieved even if any foreign particle gets stuck to the :Flanged - ASME B 16.5 Raised Face Butt Weld - ASME B 16.25 to suit the seating area. The disc and stem are held together by a disc nut with allowance for disc to swivel. The disc nut is tack welded to prevent loosening in service. corresponding pipe schedule. BODY SEAT RING The seat ring is seal welded to provide a bubble tight joint. STANDARDS Design - BS-1873 BACK SEAT ARRANGEMENT Face to face /dimensions - ASME B 16.10 The back seat is designed to relieve back pressure on the stem Testing - BS 6755 Part I (EN 12266-1) packing when fully seated. Valves can also be offered with IBR certification. SEATING SURFACE Globe valves can be offered with stellite seat, if specified. Stellited ACCESSORIES seat ring provides increased resistance to ware, abrasion and Valves can be supplied with accessories like Extended Stem erosion of the sealing surface. Arrangement, Gear Operation, Pneumatic & Electric Actuators, Chain Wheel Arrangement, Drain Plug etc.
  • Class-150 Size Class-300 mm A B C A B C 15 108 205 100 152 205 100 20 117 210 100 178 210 100 25 127 230 150 203 230 150 40 165 260 200 229 260 200 50 203 295 200 267 295 200 65 216 290 200 292 351 250 80 241 345 250 318 360 250 100 292 349 300 356 413 300 125 356 410 300 400 471 300 150 406 500 300 444 567 400 200 495 565 400 559 800 600 250 622 710 500 622 1235 700 300 698 780 600 711 1220 750 Material of Construction Body And Bonnet - ASTM A 216 Gr. WCB, ASTM A 352 Gr. LCB. ASTM A 351 Gr. CF8 / CF8M / CF3 / CF3M Disc & Seat Ring - Sizes 15mm to 100mm - ASTM A 217 Gr. CA15, 125mm and above WCB with 13% Chrome Overlay. ASTM A 351 Gr. CF8 / CF8M / CF3 / CF3M Stem, Gland & Bonnet Bush - ASTM A 276 Type 410 / 304 / 316 Yoke Sleeve - Ni-Resist ASTM A 439 Gr. D2 Gland Packing - Graphite / Grafoil / PTFE Stud / Nut - ASTM A 193 Gr. B7 / ASTM A 194 Gr. 2H Hand Wheel - Carbon Steel NOTE : n dimensions are in mm. unless otherwise specified and are indicative only. All n the process of continuous improvement of our products, the data given herein is subject to change. In n Please specify the required size, material of construction, type of drive arrangement (if any), flange standard and quantity clearly at the time of placing the order.
  • SWING CHECK VALVES Expert make Cast Steel Swing Check Valves are used in Pipelines with Liquid and Gaseous Fluids over a wide rang of line pressures and temperatures. - Swing type Disc for through flow with minimum pressure drop. - Rugged Disc - Hinge Connection - Bolted Body - Cover Joint On request, valves can be supplied with special features like NACE Requirement, Radiography, Magnetic Particle Test, LGC Test and for Oxygen service etc. BODY AND COVER The body is designed for strength to meet operating conditions and contoured to minimize erosion and resistance to flow. The full port area is maintained from the inlet port to the body seat ring to minimize turbulence. The outlet side of the body is designed to maximize the flow even when the disc swings partially. Approx. DISC The disc is opened and sustained in open position by the velocity pressure of the fluid and closed by the force of gravity. Seating load and resultant tightness is aided by back pressure in the line. BODY SEAT RING The body seat ring is seal welded to the body avoiding leakage through the path between the seat ring and the body. The seating surfaces are ground and lapped. SEATING SURFACE Check valves can be offered with stellite seat, if specified. Stellited seat ring provides increased resistance to ware, abrasion and erosion of the sealing surface. Material of Construction Body and Cover - ASTM A 216 Gr. WCB, ASTM A 352 Gr. LCB, ASTM A 351 Gr. CF8 / CF8M / CF3 / CF3M Disc & Ring - Sizes 40 mm to 100 mm - ASTM A 217 Gr. CA 15 END CONNECTION : 125 mm & above WCB with 13% Chrome overlay. Valves are offered with flanged and butt weld ends to the following standards : ASTM A 351 Gr. CF8 / CF8M / CF3 / CF3M Gasket Flanged - ASME B 16.5 Raised Face Butt Weld - - Spiral Wound SS 304 / 316 / Graphite Stud / Nut - ASTM A 193 Gr. B7 / ASTM A 194 Gr. 2H ASME B 16.25 to suit the corresponding pipe schedule. Size Class-150 Class-300 BS 1868 mm A B A B STANDARDS Design - Face to face /dimensions - ASME B 16.10 40 165 95 241 95 Testing - BS 6755 Part I (EN 12266-1) 50 203 115 267 120 65 216 120 292 132 80 241 135 318 150 100 292 150 356 170 125 330 170 400 195 150 356 195 444 220 200 495 220 533 255 250 622 260 622 305 300 698 310 711 350 Valves can also be offered with IBR certification. INSTALLATION Swing Check valves are used to prevent reversal of flow in horizontal or vertical pipelines. In vertical pipelines or for any angle from horizontal to vertical, they can be used for upward flow only. The velocity pressure should be sufficient to hold the Disc against stop. Pulsating flows as obtained at the outlet of a reciprocating pump / compressor would cause disc chatter and hence use in such application should be avoided.
  • FORGED STEEL VALVES Expert make Forged Steel Valves are rugged and compact design and are available in the size range of 15 mm to 50 mm. The valves are manufactured in accordance with BS-5352 and API-602 standards. n The valves are available in Screwed End & Socket Weld End Connections. n The valves are available with IBR Certification on request. The valves are also available with extended stem. n The Forged Steel valves are used in Refineries, Petrochemicals Industries, Fertilizer Plants, Thermal Power Stations, Other Processing Industries. GATE VALVE GLOBE VALVE CHECK VALVE Design Std. : API 602 / BS 5352 Design Std. : BS 5352 Design Std. : BS 5352 Testing Std. : API 598 / BS 5146. Testing Std. : BS 5146. n Outside screw and yoke type bolted bonnet construction. n Body n Accurately Uniquely n n Easy effect. access to stuffing box. n Self-aligning gland and follower. n Taper machined gate and n Taper gland and follower. seated renewable seat ring with perfect matching of mating parts to assure leak tightness. Seating and leak tightness. n piston assuring accurate return Guided tightness. guided in body with n Streamlined accurately machined guide ways. n Rolled n Back to seat ring to achieve leak tightness. flow passages to minimise n Streamlined pressure losses and erosion. n Back in body seat rings. Plug type disc and shoulder seated renewable seat ring for positive Plug type disc and shoulder seating surfaces to assure leak n Wedge designed piston lift check valve incorporating self cushioning and bonnet made from quality forgings. access to stuffing box. n Self-aligning screw and yoke type bolted bonnet construction. n Body and bonnet made from quality forgings. n Easy Outside n Testing Std. : BS 5146. flow passages designed to minimise pressure losses and erosion. seating arrangement provided to n Horizontal type. bonnet. seating arrangement provided to bonnet. Size Gate Valve Globe Valve Check Valve mm Material of Construction B 85 170 85 165 85 54 90 185 90 175 90 66 103 194 103 195 103 72 32 128 285 128 270 128 102 128 285 128 270 128 102 50 +5 A 40 +5 B 25 Approx. A 20 Approx. B 15 Approx. A 140 295 140 280 140 108 +5 Body and Bonnet / Cover - ASTM A 105, F 304, F 316 Wedge / Disc - ASTM A 217 Gr. CA15 / ASTM A 351 Gr. CF8 / CF8M Stem & Gland - ASTM A 276 Type 410 / 304 / 316 Gland Packing - PTFE / Graphite / Grafoil Gasket - Spiral Wound SS 304 / 316 / Graphite Stud / Nut - ASTM A 193 Gr. B7 / ASTM A 194 Gr. 2H Hand Wheel - Malleable Iron / Steel
  • Chemical Compositions & Mechanical Properties Carbon Steel ASTM A216 WCB ASTM A216 WCC LCB Carbon 0.30 0.25 0.30 Manganese 1.00 1.20 1.00 Phosphorus 0.40 0.04 Sulphur 0.045 Silicon Alloy Steel Stainless Steel LCC ASTM A 217 WC6 ASTM A217 WC9 0.25 0.05 - 0.20 0.05 - 0.18 1.20 0.50 - 0.80 0.40 - 0.70 0.04 0.04 0.04 0.04 0.045 0.045 0.045 0.045 0.60 0.60 0.60 0.60 0.60 Nickel 0.50 0.50 0.50 0.50 - - - - 8.00 - 11.00 9.00 - 12.00 Chromium 0.50 0.50 0.50 0.50 1.00 - 1.50 2.00 - 2.75 4.00 - 6.50 8.00 - 10.00 18.00 - 21.00 18.00 - 21.00 Molybdenum 0.20 0.20 0.20 0.20 0.45 - 0.65 0.90 - 1.20 0.45 - 0.65 0.90 - 1.20 0.50 2.00 - 3.00 Copper 0.30 0.30 0.30 0.30 0.50 0.50 0.50 0.50 - - Vanadium 0.03 0.03 0.03 0.03 - - 70 - 95 70 65 70 - 95 70 70 90 - 115 90 - 115 70 70 Yield Strength ksi minimum 36 40 35 40 40 40 60 60 30 30 Elongation in 2"% minimum 22 22 24 22 20 20 18 18 35 30 Reduction of Area % minimum 35 35 35 35 35 35 35 35 - - Element and Properties Tensile Strength ksi minimum ASTM A 352 ASTM A 217 C5 ASTM A 217 C12 ASTM A 351 CF8 ASTM A 351 CF8M 0.20 0.20 0.80 0.80 0.40 - 0.70 0.35 - 0.65 1.50 1.50 0.04 0.40 0.04 0.04 0.045 0.045 0.045 0.04 0.04 0.60 0.75 1.00 2.00 1.50 Note : The percentage (%) shown on the elements is the maximum except where ranges are indicated. w w w . e x p e r t v a l v e s . c o m Expert reserves the right to change product designs and specification without notice. Printed in Sept. 2007 EXPERT ENGINEERING ENTERPRISES C-13, Industrial Estate, BELGAUM - 590 008. KARNATAKA STATE, INDIA. Tel. : 91-831-2407140 / 142 / 144 Fax : 91-831-2407141 E-mail : mail@expertvalves.com PUNE MUMBAI NEW-DELHI HYDERABAD BANGALORE CHENNAI FR/MKT/10-02