Project Description
Addcon Forged Steel Gate Valves are Manufactured to API 602/BS-5352. Tested to AP-998/BS-5146.Outside screw and yoke type bolted bonnet construction Body and bonnet made from high quality forgings. Easy access to stuffing box. Self-aligning gland and follower. Accurately machined gate and seat rings with mirror finished seating surfaces to assure leaktightness Wedge accurately guided throughout its travel in machined guideways in body. Rolled in body seat rings of renewable type. Back seating surfaces provided integral to bonnet.
Material Specification
| SERIAL NO | QTY | DESCRIPTION | MATERIAL |
| 1 | 1+1+1 | BODY+BONNET+YOUCK | ASTM A 351 GR. CF8 / CF8M / CF3 / CF3M / ASTM A 216 GR. WCB |
| 2 | 2 | SEAT RING | 13% CROME STEEL ASTM A 351 GR. CF8 / CF8M / CF3 / CF3M AISI S.S 304 / S.S 316 / S.S 304 L / S.S 316 L |
| 3 | 1 | WEDGE | 13% CROME STEEL ASTM A 351 GR. CF8 / CF8M / CF3 / CF3M AISI S.S 304 / S.S 316 / S.S 304 L / S.S 316 L |
| 4 | 1 | STEM / SPINDLE | AISI S.S.410 / S.S 304 / S.S 316 / S.S 304 L / S.S 316 L |
| 5 | 4 / 8 / 12 | BONNET / STUD | ASTM A 193 Gr. B7 / B8 / B 8M |
| 6 | 8 / 16 / 24 | BONNET / NUT | ASTM A 194 Gr. 2H / 8 / 8M |
| 7 | 1 | BONNET BUSH | AISI S.S.410 / S.S.304 / S.S.316 / S.S.304 L / S.S.316 L |
| 8 | 1 | GASKET | CAF/SPIRAL WOUND METALLIC SS304/SS 316 FILLED WITH GRAPHITE |
| 9 | 1 SET | PACKING | FLEXIBLE GRAHITE |
| 10 | 1 | HAND WHEEL | MALLEABLE IRON |
Salient Features
- Gate Valve Body & Bonnet Made From High Quality Forging. The Forgings Are Precision Machined For High Performance
- Back Seating Arrangement Permits The Replacement Of Packing With Valve Under Fully Open Condition
- Deep Stuffing Box Is Providing For Tightness And Maximum Long Packing Life.
- Specially Designed Die Formed Graphite Packing, Controlled Clearance Between Stem, Gland And Bonnet Bushing For Guaranteed Low Emissions Meet 100 PPM Maximum Fugitive Emission Levels.
- Stellited Wedge (Gate), Seat Ring & Back Seat Can Also Be Offered On Special Request
- Self – Aligning Two Piece Gland Available
- Extra Long, Extended Bonnet Gate Valve For Special Services. Antifriction Thrust Bearing Is Provided In Yoke Sleeve For Higher Sizes And Classes
- Gear Box / Chain Wheel / Electric Or Pneumatic Actuator Design Available
Design and Testing International Standard
| SERIAL NO | QTY | DESCRIPTION | MATERIAL |
| 1 | 1+1+1 | BODY+BONNET+YOUCK | ASTM A 351 GR. CF8 / CF8M / CF3 / CF3M / ASTM A 216 GR. WCB |
| 2 | 2 | SEAT RING | 13% CROME STEEL ASTM A 351 GR. CF8 / CF8M / CF3 / CF3M AISI S.S 304 / S.S 316 / S.S 304 L / S.S 316 L |
| 3 | 1 | WEDGE | 13% CROME STEEL ASTM A 351 GR. CF8 / CF8M / CF3 / CF3M AISI S.S 304 / S.S 316 / S.S 304 L / S.S 316 L |
| 4 | 1 | STEM / SPINDLE | AISI S.S.410 / S.S 304 / S.S 316 / S.S 304 L / S.S 316 L |
| 5 | 4 / 8 / 12 | BONNET / STUD | ASTM A 193 Gr. B7 / B8 / B 8M |
| 6 | 8 / 16 / 24 | BONNET / NUT | ASTM A 194 Gr. 2H / 8 / 8M |
| 7 | 1 | BONNET BUSH | AISI S.S.410 / S.S.304 / S.S.316 / S.S.304 L / S.S.316 L |
| 8 | 1 | GASKET | CAF/SPIRAL WOUND METALLIC SS304/SS 316 FILLED WITH GRAPHITE |
| 9 | 1 SET | PACKING | FLEXIBLE GRAHITE |
| 10 | 1 | HAND WHEEL | MALLEABLE IRON |