Bray Series 04 Manual Gear Operator (Quarter-Turn Valves)

Cast iron manual gear operator for on/off and throttling control of quarter-turn valves.

Genuine product assurance

We can help verify product data and purchasing details.

Model confirmation

Confirm model, connection and key options before ordering.

After-sales support

After-sales communication support is provided according to the order agreement.

Bray Series 04 manual gear operators are designed for isolation, on/off, and throttling control of quarter-turn valves, featuring a cast iron housing and manual worm gear drive. Output torque ranges from 2000–24000 in-lbs and is suitable for 2–48 in. (50–1200mm) valves, with IP65 protection and ABS certification. Valve rotation positions can be set using a valve position indicator and field-adjustable mechanical travel stops, making them suitable for manual control in industrial and process piping applications.

Application scenarios

Manual isolation and on/off control for quarter-turn valves in industrial pipelines

For heavy-duty manual on/off and isolation control of 2 to 48 inch quarter-turn valves. The manual worm gear drive provides 2000 to 24000 in-lbs of output torque and can hold the valve in the set position.

Manual throttling and flow restriction adjustment in process piping

For manual throttling and flow restriction control of quarter-turn valves. The valve can be adjusted to a specific rotation angle using the valve position indicator and field-adjustable mechanical travel stops.

Selection points

Self-Locking Worm Gear Positioning

Uses a self-locking worm and worm gear drive to hold quarter-turn valves in the required position.

Output Torque and Valve Size Coverage

Output torque ranges from 2000-24000 in-lbs, suitable for 2-48 inch (50-1200 mm) quarter-turn valves.

Self-Lubricating Manual Mechanism

The Series 04 features a self-lubricating design for heavy-duty manual on-off and throttling service.

Cast Iron Housing and IP65 Protection

Features a cast iron housing and O-ring stem seals with an IP65 protection rating.

Field-Adjustable Mechanical Travel Stops

Equipped with multiple mechanical travel stops that can be field-adjusted to specific valve rotation angles.

Optional Operating and Locking Accessories

Optional chainwheel accessories, padlock kits, and 2-inch square nut versions are available.

Installation & maintenance notes

Field Adjustment of Mechanical Travel Stops

During installation and field commissioning, properly adjust and verify the mechanical travel stops according to the actual valve rotation angle required to ensure the valve reaches the required open and closed positions.

Maintain IP65 Seal Integrity

After installation and maintenance, ensure the operator housing, O-ring stem seals, and other sealing points remain intact to prevent moisture or dust from entering the mechanism due to seal failure and to maintain IP65 protection.

FAQ

What is the operating principle of the Series 04 manual gear actuator?

The Series 04 uses a self-locking worm gear drive to hold and adjust valve position. The handwheel provides the angular adjustment required for on/off and throttling service. The valve stem packing uses an O-ring design to ensure IP65 protection and self-lubrication for reduced wear.

What valve types and size ranges is this actuator suitable for?

Designed for heavy-duty on/off and throttling applications on 2-inch to 48-inch (50mm-1200mm) valves, it is compatible with quarter-turn valves.

What are the key considerations for installation and field adjustment of the Series 04?

The unit includes a handwheel, valve position indicator, and various mechanical travel stops, making it easy to move the valve to a specific rotation angle in the field. Optional chainwheels, padlock kits, and 2-inch square nut versions are available to meet site requirements.

What technical advantages does this actuator offer during long-term operation?

The cast iron housing provides robust construction, while the IP65 protection rating improves reliability in outdoor or wet environments. The self-lubricating design reduces maintenance frequency, and the worm gear drive maintains stable positioning to reduce failures.

How should selection and configuration be confirmed?

Confirm output torque requirements, valve type, and required mounting and accessory configurations based on the actual model and application conditions. Specific configurations should be verified against site conditions.