Coplanar 5-Valve Manifold

Coplanar 5-Valve Manifold

The Coplanar Five Valve Manifold is designed for direct mounting with coplanar differential pressure transmitters in industrial process measurement systems.

A typical five valve manifold includes two block valves, one equalizing valve, and two vent or bleed valves in one compact body. The block valves isolate the high-pressure and low-pressure sides from the process, the equalizing valve balances pressure across the transmitter, and the vent valves allow controlled pressure release, draining, or calibration connection.

Compared with a three valve manifold, the coplanar five valve manifold provides more complete operation for isolation, equalizing, bleeding, venting, zero checking, and calibration. It is commonly used in differential pressure measurement, flow measurement, level measurement, filter monitoring, and process control applications.

Applications

Oil & Gas Industry

Differential pressure and process pressure monitoring
Used in drilling, production, pipeline transmission, gas processing, and refinery systems where DP transmitters are used for flow, level, or pressure difference measurement.

Flow measurement support
Suitable for differential pressure flow measurement loops with orifice plates, flow nozzles, venturi tubes, and other primary flow elements in pipelines and process units.

Isolation, equalizing, venting, and draining
The five valve structure allows operators to isolate both pressure sides, equalize pressure across the transmitter, vent trapped pressure, drain residual media, and perform calibration more safely in high-pressure service.

Chemical and Petrochemical Plants

Process differential pressure measurement
Applied in reactors, pumps, filters, distillation columns, storage tanks, and chemical pipelines where stable DP measurement and instrument isolation are required.

Safer maintenance in harsh media
The manifold helps isolate DP transmitters from corrosive, toxic, flammable, high-pressure, or high-temperature media before inspection, replacement, zero adjustment, or calibration.

Power Generation

Steam and water systems
Used in boiler systems, turbine auxiliary systems, feedwater lines, condensate systems, and steam pipelines where DP transmitters are used for flow, level, and pressure difference monitoring.

Instrument protection and calibration
The five valve design helps protect transmitters during commissioning, shutdown, venting, zero checking, and routine calibration work.

Pharmaceutical and Biotechnology

Clean utility and auxiliary process lines
Suitable for auxiliary differential pressure measurement in water systems, clean utility lines, filtration skids, fermentation equipment, mixing systems, and process skids.

Clean process isolation
For hygienic or sanitary applications, material selection, connection type, sealing structure, and surface requirements should be selected according to the actual medium and cleaning requirements.

Water Treatment and Distribution

Flow and differential pressure monitoring
Used in filtration systems, pumping stations, membrane systems, treatment equipment, desalination systems, and distribution pipelines to support stable process measurement.

Filter pressure drop measurement
Suitable for monitoring differential pressure across filters, membranes, and treatment units, helping operators identify clogging, fouling, or maintenance requirements.

HVAC Systems

Differential pressure measurement
Applied in chilled water, heating water, air handling units, filter sections, pump systems, and heat exchangers where pressure difference needs to be measured or monitored.

Service and maintenance isolation
The manifold allows technicians to isolate, equalize, vent, and calibrate the transmitter locally, improving maintenance efficiency in complex HVAC systems.

Laboratories and Research Facilities

Controlled DP measurement lines
Used in laboratories, pilot plants, test benches, and research systems where gases or liquids require stable differential pressure measurement.

Flexible calibration and pressure line management
The compact coplanar body supports DP transmitter mounting, pressure balancing, bleeding, venting, calibration, and process line management in experimental or small-scale process systems.

Advantages

• Coplanar five valve structure supports direct mounting with coplanar differential pressure transmitters.
• Two block valves, one equalizing valve, and two vent or bleed valves provide complete isolation, pressure balancing, and pressure release functions.
• Suitable for flow, level, filter, and differential pressure monitoring in process instrumentation loops.
• More convenient calibration and zero checking compared with a basic three valve manifold.
• Compact manifold body helps reduce separate fittings and simplify instrument installation.
• Non-rotating stem design helps reduce seat wear and extend valve service life.
• Improved locking gland structure helps maintain stable stem operation and reliable sealing.
• 100% pneumatic pressure testing before shipment helps verify sealing performance.
• Tested at 1.5 times the design pressure to support reliable operation in demanding industrial applications.
• Hastelloy tip available as standard configuration for improved corrosion resistance and longer service life.
• Precision-machined valve body helps ensure accurate dimensions, smooth operation, and consistent sealing performance.