雙作用與回彈直接天然氣的四分之一回轉(zhuǎn)執(zhí)行器輸出力矩到六百五十○點零萬英鎊
Model GIG/GIGS Direct Gas
- Description
- Specifications
- Documentation
Double Acting and Spring Return Direct Gas Quarter-turn Actuators Output Torques to 6,500,000 lb.in.
Features & Benefits:
- Separate gas and hydraulic cylinders prevent commingling of gas and oil, eliminating any possibility of oil release to the atmosphere during the opening or closing cycle.
- Scotch yoke mechanism generates high break torque for the actuation of quarter-turn pipeline valves.
- Totally enclosed, weatherproof carbon steel housing protects the critical internal components against corrosive elements.
- Heavily chrome plated guide bar provides support for the transverse forces generated during rotation of the scotch yoke, ensuring proper support of the piston rod and valve stem.
- All load-bearing components supplied with bronze or PTFE-graphite-bronze bearings, eliminating the need for lubrication maintenance and ensuring durable, smooth operation.
- Electroless nickel plated cylinder wall provides a smooth, long lasting sealing surface for the piston seal, assuring maximum sealing integrity and long service life.
- ISO 9001 certified design and manufacturing process provides assurance of a quality finished product.
- Integral manual hａnd pump provides a means of cycling the valve when sufficient line pressure is not available.
- Power gas consumption is significantly reduced as there are no gas/hydraulic tanks incorporated in the design.
- Independently adjustable ‘open’ and ‘close’ travel stops are located on center with the piston rod thus eliminating sideloading to the output shaft.
- Internationally recognized ISO 5211 mounting patterns facilitate in-field interchangeability of adaption hardware.
| Technical Data | ||
| Supply pressure | : | 150 to 1,500 psig |
| (10.3 to 103 bar) | ||
| Option | : | 1850 psig |
| Supply medium | : | High pressure gas |
| Temperature rating | : | |
| Standard range -20° to 210°F | ||
| (-30° to 100°C) | ||
| Optional range -65° to 300°F | ||
| (-54° to 150°C) | ||
| Angular rotation | : | 90 degrees ± 4 degrees at each end of travel |
