3-Valve Instrument Manifold – Direct Mount (Coplanar)

For direct mounting on differential pressure transmitters requiring reliable isolation, equalization control, and long-term sealing stability in high-pressure measurement systems.

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3-Valve Instrument Manifold – Direct Mount (Coplanar)

3-Valve Instrument Manifold – Direct Mount (Coplanar)
3-Valve Instrument Manifold – Direct Mount (Coplanar)
3-Valve Instrument Manifold – Direct Mount (Coplanar)
3-Valve Instrument Manifold – Direct Mount (Coplanar)

product introduction

This 3-valve coplanar instrument manifold is used for direct mounting on differential pressure transmitters. It features a back-seated valve design to enhance sealing performance during maintenance. The hardened non-rotating lower stem reduces friction and wear during repeated operation cycles. The upper stem thread is roll-hardened and isolated from process media to maintain cleanliness and durability. Each manifold is factory-tested under rated working pressure to ensure sealing reliability.

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Product Description

The 3-valve coplanar instrument manifold is designed for direct mounting on differential pressure transmitters in industrial measurement systems. Its compact block design integrates two isolation valves and one equalizing valve to ensure stable pressure balancing, reliable shut-off, and safe transmitter protection in high-pressure environments.

instrument manifold valves

No.Component316 Stainless Steel (Material Grade / ASTM Spec.)Alloy C-276 (Material Grade / ASTM Spec.)
1HandleAluminum Alloy Aluminum Alloy
2Set Screw304 Stainless Steel304 Stainless Steel
3Packing Gland304 Stainless Steel / A479 304 Stainless Steel / A479
4Upper Valve Stem316 Stainless Steel / A479 304 Stainless Steel / A479
5Lock NutStainless Steel Stainless Steel
6Bonnet316 Stainless Steel / A479Alloy C-276 / B574
7Packing Gland Ring316 Stainless Steel / A479316 Stainless Steel / A479
8PackingPTFE or GraphitePTFE or Graphite
9Groove PinStainless SteelStainless Steel
10Lower Valve StemHardened 316 Stainless Steel / A479Alloy C-276 / B574
11Valve Body316 Stainless Steel / A479; 316 Stainless Steel / A182Alloy C-276 / B564
—LubricantMolybdenum Disulfide-BasedMolybdenum Disulfide-Based

 

instrument manifold valves

 

Features & Functions

  • Direct coplanar mounting to differential pressure transmitters
  • Integrated isolation and equalization control for DP measurement
  • Back-seated valve design for enhanced sealing during maintenance
  • Hardened non-rotating lower stem reduces packing and seat wear
  • Roll-hardened upper stem thread isolated from process media
  • Smooth operation with low torque and stable sealing performance
  • Reliable shut-off and pressure balancing in measurement systems

 

Product Advantages

  • Compact integrated manifold reduces installation space
  • Improved sealing reliability and long-term stability
  • Extended service life through reduced mechanical wear
  • Safe maintenance with back-seat protection design
  • Clean process isolation preventing media contamination
  • Suitable for high-pressure DP transmitter applications

 

3-Valve Instrument Manifold – Direct Mount (Coplanar)

 

3-Valve Instrument Manifold – Direct Mount (Coplanar)

3-Valve Instrument Manifold – Direct Mount (Coplanar)

 

Our Company Advantages

  • 16+ years specialized in pressure testing and pneumatic boosting equipment R&D and manufacturing
  • Annual production capacity exceeding 1000+ equipment sets
  • Trusted by 8000+ global customers
  • National High-Tech Enterprise with 28+ patents
  • Engineering team with 10+ years industry experience
  • Member of China Special Equipment Industry Association
  • Member of National Instrumentation Standardization Committee
  • ISO 9001 certified quality management system
  • CE certified products for international compliance
  • Focused on mid-to-high-end industrial instrumentation market

 

Application Fields

  • Differential pressure transmitter installation
  • Flow and level measurement systems
  • Process control instrumentation
  • Chemical and petrochemical plants
  • Power generation and industrial automation
  • Oil & gas process measurement systems
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