With many years of research and development and manufacturing experience, HANGONG can provide the most comprehensive standard unit composed of 2-5 valves to meet the specifications of all kinds of instruments and meters.
It can be selected from all the connecting positions of the valve body, so as to optimize the installation and connection mode. Merging unit valve design to reduce installation cost and improve safety performance.
The combination instrument provided for you: stop flow release test process.
In addition to manufacturing valve units, HANGONG also produces a full range of single / double action high performance fittings. Products of various materials are widely used in petroleum, marine engineering, natural gas, chemical industry, electricity and other industries, and have broad application prospects.
Through the integration of these products, instrument, piping and fittings, HANGONG can provide a unique combination of connection, eliminate the assembly process thread (thread sealing material) impurities generated fragments into the workpiece, causing the system to reduce pollution failure, replacement and shutdown time.
The factory is installed by simple assembly and program installation to ensure quick, brief and convenient. The system provides comprehensive and flexible operation steps to prevent leakage in the pipeline connection.
Product features
1、Valve group characteristics
Ø  Standard flange connections are available
Ø  Design of one-piece valve body
Ø  Safety stop pin
Ø  Design of replaceable non rotating spool
Ø  316 stainless steel material design
2、Two valve set
Application characteristics of L
Ø Facilitates shut-off and venting (or calibration) of transmitter or gauge static pressure
Ø  Includes a shut-off valve and a drain valve
Ø  End Connections: Female NPT 1/2 in.; 12mm and 1/2 in. Tube
Ø  Horizontal installation
Ø  Direct instrumentation installation
Application characteristics of H
Ø  With 2 stop valves, parallel operation, so that through the valve group of two process tubes in any pipe cut off
Ø  Terminations: internal thread NPT 1/2 in.; 12mm and 1/2 in. card bushings or standard flanges
Ø  Design for liquid level use
Ø  Horizontal installation
Ø  Direct instrument installation
3、Three valve set
Ø  Design for connection of differential pressure transmitter
Ø  It consists of two stop valves and a balance valve
Ø  Terminations: internal thread NPT 1/2 in.; 12mm and 1/2 in. card bushings or standard flanges
Ø  The balance valve is mainly used to balance the pressure in the two process pipelines
Ø  Direct instrument installation
Ø  Horizontal installation
4、Application characteristics of H type five valve group
Ø  Designed for the differential pressure transmitter with double row discharge function
Ø  It includes two stop valves and one balancing valve, and two exhaust valves
Ø  Terminations: internal thread NPT 1/2 in.; 12mm and 1/2 in. card bushings or standard flanges
Ø  Horizontal installation
Ø  Direct instrument installation

Specification size

HANGONG Needle valve.pdf