一．Product Introduction
The heavy duty actuator are available as pneumatic or hydraulic scotch yoke actuators for 90 degree angular valves, dampers or any device.BG series is accompanied by a complete sets of accessories modular, involving side-mounted handwheel, jackscrew & hydraulic overrides, filter/regulater/gauge, limit switches, solenoids valve and positioners, etc. The Heavy duty actuator used in various industries like chemical, refining, pipeline, pharmaceutical, water processing, offshore, etc.
二．Product Features
Housing Module
1. High-rigidity one-piece cast housing
2. Dual guide rod design for the entire series, optimizing lateral loads
3. Two types of scotch and yoke designs: symmetric type and canted type
4. Base connection plate conforms to ISO 5211 standard, facilitating direct installation.
5. Adjustable travel limit devices for 0° and 90° to avoid valve overtravel
6. Self-lubricating oil-free bearing design with low friction and long service life.
Cylinder Module
1. Three-stage precision grinding process and hard chrome plated cylinder provide wear-resistant and corrosion-resistant properties, as well as excellent low-friction coefficient and reliable sealing with mirror-grade roughness.
2. Seal ring and wear-resistant ring dual-guided design ensures excellent dynamic sealing performance.
3. Self-lubricating, oil-free bearing design at piston rod minimizes friction and extends service life.
4. Multiple air source interface sizes are available
Spring Module
1. Fully enclosed welded anti-misoperation design to ensure safe use
2. High-quality supplier provided springs with guaranteed performance
3. Corrosion-resistant resin coating on the surface of the spring
4. Full-stroke guide for the spring seat to achieve smooth operation
5. Embedded screw and hydraulic manual design to reduce product length and facilitate installation.
三．Technical data
| Technical Parameter | Details |
|---|---|
| Actuator Type | – Pneumatic Scotch Yoke Actuator
– Hydraulic Scotch Yoke Actuator |
| Torque Range | – Pneumatic: 500 N·m – 100,000 N·m (varies by model/air pressure)
– Hydraulic: 1,000 N·m – 200,000 N·m (varies by model/hydraulic pressure) |
| Pressure Rating | – Pneumatic: 0.4 – 1.0 MPa (gauge pressure)
– Hydraulic: Up to 21 MPa (gauge pressure, configuration-dependent) |
| Temperature Range | – Ambient: -30℃ – +80℃ (standard); Custom (-40℃ – +120℃ available for extreme environments)
– Media: Compatible with valve media temperature (varies by application) |
| Stroke Angle | 90° (for quarter-turn valves, dampers, etc.) |
| Materials | – Body: Aluminum alloy, Carbon steel, Stainless steel (304, 316, etc.)
– Internal Components: Hardened steel, Stainless steel, Engineering plastics – Seals: NBR, FKM/Viton, EPDM (selected by temperature/media compatibility) |
| Accessories (Modular) | – Manual Override: Side-mounted handwheel, Jackscrew, Hydraulic override
– Control & Monitoring: Filter/regulator/gauge, Limit switches, Solenoid valves, Positioners (analog/digital/smart with HART/Fieldbus) – Mounting: ISO 5211 interface |
| Certifications & Standards | ISO 5211, ATEX, IECEx, API, ASME, NACE MR0175 (application-dependent) |
