A gear operated bolted bonnet gate valve is a robust industrial valve designed for efficient flow control in high-pressure and high-temperature applications. It is equipped with a gear mechanism, making it easier to operate compared to manual hand wheel valves, especially in larger sizes. The bolted bonnet design ensures a secure and leak-proof seal, enhancing the valve’s durability and reliability. These valves are available in two connection types: flange end and buttweld. Flange end valves provide easy installation and maintenance, while buttweld valves offer a permanent, leak-proof connection suitable for demanding environments. Commonly used in industries such as oil and gas, petrochemical, and power generation, these valves are highly durable and capable of handling challenging operating conditions.
Design std | API600 / BS1414 |
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Size | 2″ TO 24″ |
Class | 150# TO 2500#” |
Body & Bonnet Material | WCB, WCC, WC6, WC9, C 5, C 12, LCB, LCC, CF8, CF8M |
SEAT | A105+13%CR, A105+STEELITED 6# |
TRIM | API NO. 1 TO 16 |
Face to Face | ANSI B16.10 |
End Connection | ANSI B16.5 |
P. NO. | PART DESCRIPTION | Carbon Steel to ASTM | Alloy Steel to ASTM | Stainless Steel to ASTM | ||||||||
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Type WCB | Type LCB | Type WC1 | Type WC6 | Type WC9 | Type C5 | Type C12 | Type CF8 | Type CF8M | Type CF3 | Type CF3M | ||
1 | BODY | A216 WCB | A352 LCB | A217 WC1 | A217 WC6 | A217 WC9 | A217 C5 | A217 C12 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M |
2 | SEAT RING | As Per Trim Material Combination | ||||||||||
3 | WEDGE | As Per Trim Material Combination | ||||||||||
4 | STEM | As Per Trim Material Combination | ||||||||||
5 | GASKET | Stainless Steel + Graphoil | ||||||||||
6 | BONNET | A216 WCB | A352 LCB | A217 WC1 | A217 WC6 | A217 WC9 | A217 C5 | A217 C12 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M |
7 | BACK SEAT BUSH | As Per Trim Material Combination | ||||||||||
8 | PACKING | To Suit Service Conditions | ||||||||||
9 | LANTERN RING | As Per Trim Material Combination | ||||||||||
10 | GLAND | A182 F6a | A182 F304 | A182 F6a | A182 F6a | A182 F6a | A182 F6a | A182 F6a | F-304 | F-316 | F-304L | F-316L |
11 | GLAND FLANGE | A216 WCB | A352 LCB | A217 WC1 | A217 WC6 | A217 WC9 | A217 C5 | A217 C12 | A351 CF8 | A351 CF8M | A351 CF3 | A351 CF3M |
12 | NUTS | A194 2H | A194 Gr.4 | A194 Gr.4 | A194 Gr.4 | A194 Gr.4 | A194 Gr.4 | A194 Gr.4 | A194 Gr.8 | A194 Gr.8 | A194 Gr.8 | A194 Gr.8 |
13 | YOKE SLEEVE | AI, Bronze BS1982 CC331G or Ni – resist to A439 D2 | ||||||||||
14 | OIL SEAL | EPDM/BUNA ‘N’ RUBBER | ||||||||||
15 | THRUST BEARING | STEEL | ||||||||||
16 | LUBRICATOR | STEEL | ||||||||||
17 | YOKE SLEEVE RETAINING NUT | STEEL IS:2062 | ||||||||||
18 | LOCKING SCREW | STEEL IS:2062 | ||||||||||
19 | HAND WHEEL | D1 A536 80-55-D6 OR MI 1S 2108 BM 290/ASTM A338 | ||||||||||
20 | HAND WHEEL RETAINING NUT | STEEL IS:2062 | ||||||||||
21 | STUDS | A193 B7 | A320 L7 | A193 B16 | A193 B16 | A193 B16 | A193 B16 | A193 B16 | A193 B8 | A193 B8 | A193 B8 | A193 B8 |