2-Valve Instrument Manifold – Direct Mount (Coplanar, Flanged Transmitter)

For differential pressure measurement applications requiring reliable isolation and secure shut-off when directly mounting on flanged transmitters with a coplanar interface.

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2-Valve Instrument Manifold – Direct Mount (Coplanar, Flanged Transmitter)

2-Valve Instrument Manifold – Direct Mount (Coplanar, Flanged Transmitter)
2-Valve Instrument Manifold – Direct Mount (Coplanar, Flanged Transmitter)
2-Valve Instrument Manifold – Direct Mount (Coplanar, Flanged Transmitter)
2-Valve Instrument Manifold – Direct Mount (Coplanar, Flanged Transmitter)
2-Valve Instrument Manifold – Direct Mount (Coplanar, Flanged Transmitter)
2-Valve Instrument Manifold – Direct Mount (Coplanar, Flanged Transmitter)

product introduction

This 2-valve instrument manifold is designed for direct mounting on flanged pressure transmitters with a coplanar interface. The back-sealed valve structure improves isolation performance during installation and servicing. A two-piece stem design with a non-rotating lower stem reduces packing wear and valve seat abrasion. The upper stem thread is roll-hardened and lubricated, with grease isolated from the process fluid. Each unit is tested at rated pressure before shipment.

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Product Description

This direct-mount 2-valve manifold integrates seamlessly with transmitters using an MSS SP-99 flanged interface. The manifold includes an isolation valve and vent valve, allowing safe shutdown and pressure release during installation, calibration, or maintenance.

The valve employs a two-piece stem with non-rotating lower stem motion, reducing packing friction and seat wear. The roll-hardened upper stem thread is lubricated and isolated from process media, ensuring smooth operation and long-term sealing reliability.

instrument manifold valves

No. Component 316 Stainless Steel (Material Grade / ASTM Spec.) Alloy C-276 (Material Grade / ASTM Spec.)
1 Handle Aluminum Alloy  Aluminum Alloy
2 Set Screw 304 Stainless Steel 304 Stainless Steel
3 Packing Gland 304 Stainless Steel / A479  304 Stainless Steel / A479
4 Upper Valve Stem 316 Stainless Steel / A479  304 Stainless Steel / A479
5 Lock Nut Stainless Steel  Stainless Steel
6 Bonnet 316 Stainless Steel / A479 Alloy C-276 / B574
7 Packing Gland Ring 316 Stainless Steel / A479 316 Stainless Steel / A479
8 Packing PTFE or Graphite PTFE or Graphite
9 Groove Pin Stainless Steel Stainless Steel
10 Lower Valve Stem Hardened 316 Stainless Steel / A479 Alloy C-276 / B574
11 Valve Body 316 Stainless Steel / A479; 316 Stainless Steel / A182 Alloy C-276 / B564
— Lubricant Molybdenum Disulfide-Based Molybdenum Disulfide-Based

 

instrument manifold valves

 

Features & Functions

  • Direct mount coplanar design for flanged transmitters
  • Two-valve configuration: isolation and vent
  • Back-sealed valve improves sealing during installation and servicing
  • Non-rotating lower stem reduces packing wear and friction
  • Roll-hardened upper stem thread with isolated lubrication
  • Standard MSS SP-99 flange compatibility
  • Compact manifold structure with reduced leak paths
  • Each unit pressure-tested before shipment

 

Product Advantages

  • Reliable isolation and venting in transmitter installations
  • Extended service life due to low-wear stem motion
  • Stable sealing performance during maintenance cycles
  • Reduced leakage risk with direct-mount configuration
  • Compatible with standard coplanar flanged transmitters
  • Smooth operation and consistent torque control

 

2-Valve Instrument Manifold – Direct Mount (Coplanar, Flanged Transmitter)

Our Company Advantages

  • 14+ 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
  • 10+ years export experience in European and US markets
  • ISO 9001 certified quality management system
  • CE certified products for international compliance
  • Focused on mid-to-high-end industrial instrumentation market

 

Applications

  • This coplanar direct-mount 2-valve manifold is suitable for:
  • Pressure transmitter installations
  • Differential pressure measurement systems
  • Flow and level instrumentation loops
  • Oil & gas process instrumentation
  • Chemical processing plants
  • Power and energy facilities
  • Industrial automation systems
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