JL-BSO Manual Frac Valve

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The JL-BSO Manual Frac Valve is engineered as a manually operated gate valve for demanding high-pressure and large-bore oilfield applications. Its mechanical design combines a ball screw actuation system with a lower stem arrangement to reduce the torque required during valve operation.

The valve is designed for bidirectional flow service, allowing installation without a fixed flow-direction requirement. Metal-to-metal sealing is used at both the gate-to-seat and seat-to-body interfaces, providing a robust sealing arrangement for severe operating environments.

The JL-BSO series is available in flanged and studded configurations, with pressure ratings and dimensional specifications suitable for different high-pressure frac equipment requirements.

JL-BSO Gate Valve Design and Construction

The JL-BSO incorporates several mechanical and sealing features intended to support reliable operation under high-pressure conditions.

The main design elements include:

• Ball screw actuation mechanism to help reduce operating torque

• Lower stem configuration for pressure balancing and operating assistance

• Bidirectional flow capability for flexible installation

• Metal-to-metal gate and seat sealing

• Metal-to-metal seat-to-body sealing

• Pressure-energized non-elastomeric lip seals

• Pressure-energized stem sealing system

• Pressure-energized metal-to-metal bonnet seal

• Backseat arrangement for stem seal replacement

• Grease injection fittings positioned for safer maintenance

The combination of these components provides a mechanical valve configuration designed for high-pressure service where sealing integrity, operating torque and maintainability are important considerations.

Pressure-Activated Sealing System

The valve body incorporates two spring-loaded, pressure-energized, non-elastomeric lip seals. These seals are designed to help limit the entry of particulate contaminants into the body cavity and critical sealing areas.

The sealing arrangement also helps protect the body-to-seat sealing surface from contamination and potential damage. Because the seals are pressure energized, the sealing performance can be maintained across a broad range of operating pressures.

A separate spring-loaded, pressure-energized non-elastomeric stem seal is designed to accommodate different pressure, temperature and fluid conditions.

The bonnet uses a pressure-energized metal-to-metal seal, providing another metal sealing interface within the valve assembly.

Lower Stem and Pressure Balancing Mechanism

A lower stem is incorporated into the JL-BSO design to balance pressure thrust acting on the upper stem.

This configuration serves several functions within the valve mechanism. It helps reduce operating torque, limits pressure accumulation inside the body cavity during operation and provides a means of indicating valve position.

The design therefore combines actuation and pressure-management functions within the stem assembly rather than relying solely on the upper stem.

Maintenance and Stem Seal Replacement

The JL-BSO valve is designed with maintenance access in mind.

Either stem can be back-seated, allowing the corresponding stem seal to be replaced while the valve remains under pressure, subject to the applicable maintenance procedure and operating requirements.

Grease injection fittings are positioned on the downstream side of the stem and at the balancing-stem backseat area. Their positioning is intended to support safer lubrication and maintenance operations.

JL-BSO Flanged Configuration

The flanged version is available in 5 1/8-inch and 7 1/16-inch sizes, with working pressure ratings of 10,000 and 15,000 PSI as specified below.

Note: The dimensional and operating data should be checked against the approved product drawing and final valve configuration before engineering, procurement or installation.

JL-BSO Studded Configuration

The studded version is also available in 5 1/8-inch and 7 1/16-inch sizes. The following specifications cover the listed 10,000 and 15,000 PSI configurations.

The table values represent the supplied configuration data. Buyers should confirm the applicable dimensional drawing, connection configuration and operating specifications for the exact valve model before placing an order.

Bidirectional Flow and Metal Sealing

The JL-BSO manual frac valve is designed for bidirectional operation, giving users greater flexibility when integrating the valve into high-pressure flow systems.

Both the gate-to-seat and seat-to-body sealing interfaces use metal-to-metal contact. This configuration eliminates dependence on conventional elastomeric sealing at these primary interfaces and is intended for demanding pressure-service environments.

The combination of bidirectional construction and metal sealing provides a valve architecture suitable for equipment where flow direction and high-pressure sealing requirements need to be carefully managed.

Manual Actuation and Operating Torque

Manual operation is supported by a ball screw mechanism and lower-stem pressure-balancing arrangement.

The ball screw mechanism is incorporated to minimize the mechanical effort required to actuate the valve. The lower stem helps counteract pressure thrust on the upper stem, further contributing to controlled operating torque.

The supplied technical tables include both:

• Torque required before the valve is cracked open

• Torque required after the valve has started to open

The specified number of turns for full opening/closing and initial crack-open operation can also be used as reference information during equipment design and operating procedure development.

High-Pressure Frac Equipment Applications

The JL-BSO series is designed for manual valve applications involving high-pressure, large-bore flow equipment.

Typical equipment integration may include high-pressure oilfield and fracturing systems where a manually operated gate valve is required.

The exact suitability of a valve should be determined according to the system pressure, connection type, fluid characteristics, temperature, size, equipment design and applicable operating requirements.

Flanged and Studded Options

Two connection configurations are provided within the JL-BSO product range:

Flanged Version

The flanged configuration covers the listed 5 1/8-inch and 7 1/16-inch sizes with working pressures up to 15,000 PSI.

Studded Version

The studded configuration provides 5 1/8-inch and 7 1/16-inch options, including the listed 10,000 and 15,000 PSI working-pressure configurations.

This configuration selection allows the valve to be matched with different high-pressure equipment connection requirements.

JL-BSO Manual Frac Valve for Industrial Valve Procurement

For buyers sourcing high-pressure gate valves, the JL-BSO provides a manual actuation solution combining ball screw operation, lower-stem pressure balancing, bidirectional flow capability and multiple pressure-energized sealing arrangements.

The available flanged and studded designs, together with different bore sizes and pressure ratings, allow the product to be specified according to the requirements of individual high-pressure systems.

For technical evaluation and procurement, customers should confirm the required valve size, pressure rating, connection configuration and dimensional requirements against the applicable product drawing and operating conditions.

– The JL-BSO gate valve was designed for use as a manual valve in high-pressure, large bore applications.

– A ball screw mechanism and lower stem are incorporated into the JL-BSO gate valve to minimize the actuating torque.

– Bi-directional design provides flow direction flexibility and increased service life.

– Sealing at the gate-to-seat and seat-to-body is metal-to-metal.

– Two spring-loaded, pressure energized, non-elastomeric lip-seals provide maximum protection against intrusion of particle contaminants into the body cavity and seal areas, improving gate and seat service life, prevent damage to the body-to-seat seal face and improve valve performance at very low pressure.

– Lower stem balances pressure thrust on upper stem to reduce operating torque, prevents body cavity pressure build-up during operation and provides position indication.

– Spring-loaded, pressure energized, non-elastomeric stem seal covers full range of pressures, temperatures, and fluids.

– Pressure-energized metal-to-metal bonnet seal.

– Either stem can be back seated to allow stem seal replacement with valve under pressure.

– Grease injection fittings located on the downstream side of the stem and the balancing stem backseat for safety.