TianKang HongJi Differential Pressure Two Valve Manifold

The TianKang HongJi Differential Pressure Two-Valve Manifold, engineered by Hongji Instrument & Valve Manufacturing Co., Ltd., is a compact and integral valve assembly designed as a primary safeguard for differential pressure (DP) measurement systems. It seamlessly integrates two critical valve functions into a single, robust body, serving as a direct and reliable interface for pressure gauges, pressure transmitters, and particularly differential pressure transmitters. This manifold is essential for performing safe and efficient isolation and equalization of pressures. By allowing operators to block the process pressure and simultaneously equalize pressure across the DP cell, it effectively prevents sensor overrange and damage during system start-up, shutdown, or routine maintenance. Its streamlined design not only simplifies installation and reduces potential leak points but also ensures the long-term accuracy and operational integrity of your critical process instrumentation.



Overview

TianKang HongJi Differential Pressure Two Valve Manifold made by Hongji Instrument& Valve Manufacturing Co., Ltd. combine several valves in one body with multiple connections. This equipment assists pressure instruments such as pressure gauges, pressure transmitters, and differential pressure transmitters directly and indirectly in measuring and equalizing pressures, differential pressures, static, gauge, and variable in process instrumentation lines by bleeding, blocking, and calibrating.

 

Technical Specifications

 Type  L Type  Net Weight  1.2kg
 Body Material  316L,Alloy  Manufacturing Capacity  1800 pics/Month
 Type of Connection  Thread  Warranty  1 year
 Seal Type  Hard Sealing  Manufacturing  Forging and CNC
 Packing  PTFE/Graphite  Pressure Range  6000Psi-10000Psi (414Bar-690Bar)
 Media  Liquid, Gas, Steam, Oil  Inlet/outlet  1/2 NPT, Flange (optional)
 Connection  1/4 NPT  Orifice:  0.157(4.0 mm)
 Graphite  -65°F to 1200°F (-54℃ to 649℃)  PTFE  -65°F to 450°F (-54℃ to 232℃)

 

Applications

  • Oil & Gas Industry: Valve manifolds play a vital role in controlling pressure and flow in oil and gas operations. They ensure safe isolation of high-pressure systems during drilling, refining, and flow measurement processes. Their reliable performance enhances system integrity, minimizes downtime, and supports accurate instrumentation across upstream and downstream applications.
  • Chemical & Petrochemical Plants: In chemical and petrochemical facilities, valve manifolds ensure precise control of process fluids and gases. They help maintain stable operating conditions in reactors, distillation columns, and mixing systems. By providing dependable isolation and venting, manifolds enhance safety, prevent leaks, and support accurate monitoring of chemical reactions.
  • Power Generation: Power plants rely on valve manifolds to regulate steam and water flow in boilers, turbines, and auxiliary systems. These manifolds allow for safe pressure measurement, system balancing, and quick isolation during maintenance. Their robust design ensures reliable performance in high-temperature and high-pressure environments typical of power generation systems.
  • Pharmaceutical & Biotechnology: In pharmaceutical and biotech applications, valve manifolds provide hygienic fluid control essential for sterile processing. They ensure contamination-free manufacturing by enabling precise isolation, cleaning, and calibration. Designed for sanitary compliance, these manifolds support critical operations in vaccine production, fermentation, and laboratory testing environments.
  • Water Treatment & HVAC Systems: Valve manifolds regulate flow and pressure in water treatment plants and HVAC networks. They optimize filtration, distribution, and temperature control while simplifying maintenance through easy system isolation. Their durable, corrosion-resistant construction ensures dependable performance in water purification, cooling, and heating applications.
  • Laboratories & Research Facilities: In laboratory and research setups, valve manifolds enable accurate control of multiple fluid channels. They support complex testing, sampling, and calibration systems where precision is essential. Their flexibility and leak-tight performance make them indispensable for experimental setups, analytical instrumentation, and pilot-scale process systems.

 

Ordering Number Description

Notes:

  • Standard manifold instrument is flange (according to MSS SP-99), flange distance (center-to-center) is 2.13 (54 mm).

Distance of 2.19 (55.6 mm) suitable for transmitters of range 6, 7 and 1151.

Distance of 2.25 (57.2 mm) transmitters of range 8 and 1151.

  • Ordering Number Indication illustrates the classification and combination of Hongji products, which can not be randomly combined.
  • For those valves made of other type of material other than listed ,please contact the Hongji sales personnel.
  • If an oxygen-dedicated valve manifold is required, include “O2” in the basic order number, for example:HJ2V-MNPT8-FNPT8-H-P-SS-O2

Customization & Technical Support

• E-Mail: overseasales@tiankang.com

Sales Support:

• E-Mail: sales06@tiankanginternational.com

 



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