Valve Body & Seat: Temperature Range -40°C to 200°C

Component Specifications

Definition

The Valve Body & Seat in solenoid valves serves as the main housing that contains the internal flow channels and provides the critical sealing interface between moving parts. The body forms the pressure boundary and flow path geometry, while the seat creates the sealing surface against the valve plug or disc to enable precise on/off or proportional control of liquids or gases in automated systems.

Working Principle

The valve body provides the structural framework and flow path, while the seat creates a precision sealing surface. When the solenoid is energized, the plunger moves to open or close the flow against the seat, creating a tight seal to prevent leakage. The body withstands system pressure and directs fluid through designed orifices.

Materials

Stainless steel (304, 316), brass, aluminum alloys, engineered plastics (PTFE, PEEK), with seats often made of elastomers (EPDM, Viton), PTFE, or metal alloys for specific media compatibility.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Port Size	1/8" to 2" NPT/BSP
Leakage Class	ANSI/FCI 70-2 Class IV or better
Pressure Rating	Up to 1000 psi
Temperature Range	-40°C to 200°C
Flow Coefficient (Cv)	0.1 to 10.0

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 5599-1, DIN 24340, ISO 15407-1, ANSI/FCI 70-2

Parent Products

This component is used in the following industrial products

Solenoid Valve (Electronic)

An electronically controlled solenoid valve that regulates fuel flow within a fuel injection pump system.

View Product Details

Engineering Analysis

Risks & Mitigation

Seat degradation from abrasive media
Body corrosion in chemical environments
Thermal expansion mismatch
Improper installation causing leaks

FMEA Triads

Trigger: Abrasive particles in fluid
Failure: Seat erosion leading to leakage
Mitigation: Install upstream filtration and select hardened seat materials

Trigger: Thermal cycling
Failure: Body distortion or seat compression set
Mitigation: Use materials with matched thermal expansion coefficients and proper torque specifications

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.01mm for critical sealing dimensions, surface finish Ra 0.8μm or better for sealing surfaces

Test Method

Pressure decay testing per ISO 15848, helium leak testing for high-integrity applications

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Valve Body & Seat

Manufacturer profiles associated with Valve Body & Seat.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What materials are best for corrosive fluid applications?

Stainless steel 316 bodies with PTFE or PEEK seats provide excellent corrosion resistance for most aggressive media.

How does seat design affect valve performance?

Seat geometry directly impacts sealing effectiveness, response time, and service life. Soft seats offer better sealing but lower temperature limits, while metal seats handle higher temperatures but may allow minimal leakage.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Valve Body & Seat