Partial - Turn Butterfly Valve Gearbox NBR Sealing Materials For Power Plants

SJ series multi-stage partial-turn gear operators

SJ series multi-stage partial-turn gear operators are widely used in water plants, chemical plants, and power plants and for general industrial applications. SJ multi-stage models have a speed ratio varying from 320:1 to 1728:1 and torque ranging from 7000NM to 72000NM.

Instructions for Installation and Operation

Connect the bottom flange of the gear operator to the upper flange of the valve and slide the valve shaft into the hole on the worm gear. Tighten the flange bolt. The valve can be closed by turning the hand-wheel clockwise and opened by turning the hand-wheel counterclockwise. On the upper face of the gear operator, a position indicator and a position marking are mounted, through which the position of switch can be directly observed. The gear operator is also equipped with a mechanical limit screw, which can be adjusted and function to limit the position at the switch extreme position.

Product Features

• WCB casing
• Welded hand-wheel (200 or above)
• IP67 grade protection
• Nickel-plated input shaft, with more resistance to corrosion
• Ductile iron worm gear
• NBR sealing materials
• Suitable for -20℃ ~ 120℃ working conditions

Customization

• LCB casing
• IP68 grade protection
• Cast hand-wheel (150~450)
• Aluminum-bronze worm gear
• Stainless steel input shaft
• For high temperature up to 320℃
• For low temperature down to -40℃
• Designed with a lock mechanism

Main Components List

Main Technical Parameter

SJ Series Valve Gearboxes,Multi-stage
This partial-turn valve gearbox series with cast iron housing is widely used in and for fire protection, water and electric utilities, chemical plants and general industrial-purposes.
- Varying from 320:1 to 1728:1 in terms of gear ratio and from 7000NM to 72000NM in terms of torque.
- Have IP65, IP67, and IP68 protection levels for option.
- WCBLCB for option.

Major Client:CIRCOR

Suzhou SIP Stard Automation Co., Ltd. is specialized in design, manufacturing, and sales of various gear operators. Established since 1999, the company has a registered capital of RMB 10.8 million and is located in Suzhou Industrial Park, an estate known for rapid economic development and favorable environment where all kinds of transport means converge and all necessary supportive and coordinative facilities are set up in place. Stard Automation boasts a total floor space of 13,000m² and manufactures over 100,000 gear operators in various models each year.

In the process of development, Stard Automation has constantly drawn on advanced experience at home and abroad to make continuous improvement of its products. “Details build classical works and quality drives the future” is the motto of each employee in Stard Automation, and the company adheres to this concept from raw material procurement to product manufacturing and customer service provision.

Stard Automation currently offers 9 major product series in more than 60 models, with the torque ranging from 170Nm to 250,000Nm and the main material optional in HT250QT450WCBYL113 aluminum die-cast alloys304 and 316 stainless steels, which make them possible to match various requirements and working conditions. Gear operators of all series are designed and tested as per the requirements of JB/T 8531-2013 “Specifications for Valve Manual Actuators”, and all flange interfaces are designed and manufactured to ISO 5211/ISO 5210. 1

Gear operators are presented with IP 67 graded protection and optional with IP 68. They can match with a number of valves used in oil and gas pipelines, underground pipeline networks, and chemical, hydro-electric generation, thermal power generation, and shipping industries, including the butterfly valve, ball valve, plug valve, blast gate, globe valve, and gate valve that rotate 90° or 360°.

Stard Automation has a variety of modern advanced equipment that can accomplish the machining and manufacturing of high-precision parts, and the inspection and testing facilities well established in place ensure that our products are under control from start to finish. We also run a comprehensive ERP management system, ensuring the production schedule and progress of each order from each customer is clear at a glance.

Oriented by its tenet of “reputation, quality, and service matter a lot”, Stard Automation is dedicated to providing users with high-quality products and is prepared to cooperate with you to create glory together.