Frame Plate (Pressure Plate): Temperature Range -20°C to 200°C

Component Specifications

Definition

The Frame Plate, also known as Pressure Plate, is a critical structural element in gasketed plate heat exchangers. It serves as the stationary end plate that, together with the movable cover plate, creates the clamping force necessary to compress the gasketed plate pack. This component ensures leak-proof sealing between plates, maintains proper plate alignment, and withstands the internal pressure and thermal stresses during operation. Typically constructed from heavy-duty materials, it features bolt holes for tie rods and may include ports for fluid connections.

Working Principle

The Frame Plate works by providing a rigid, stationary surface against which the plate pack is compressed. When tie rods are tightened, the movable cover plate presses against the plate pack, and the Frame Plate resists this force, creating uniform clamping pressure across all plates. This pressure compresses the elastomeric gaskets between plates, forming sealed channels for hot and cold fluids while maintaining plate alignment. The Frame Plate distributes mechanical loads evenly to prevent plate deformation and ensure consistent thermal performance.

Materials

Carbon steel (ASTM A36/A283), stainless steel (AISI 304/316), titanium (Grade 2), or nickel alloys (Inconel 625). Surface treatments include epoxy coating, galvanization, or passivation for corrosion resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Thickness	20-100 mm
Surface Finish	Ra ≤ 3.2 μm
Pressure Rating	Up to 25 bar
Bolt Hole Pattern	According to plate pack dimensions
Temperature Range	-20°C to 200°C
Flatness Tolerance	±0.5 mm/m

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 15547, DIN EN 13445

Parent Products

This component is used in the following industrial products

Plate Heat Exchanger

A compact heat transfer device that uses thin, corrugated metal plates to efficiently transfer thermal energy between two fluid streams.

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Engineering Analysis

Risks & Mitigation

Over-tightening causing plate deformation
Corrosion from aggressive fluids
Thermal stress cracking
Misalignment leading to leakage

FMEA Triads

Trigger: Insufficient clamping force
Failure: Fluid leakage between plates
Mitigation: Regular torque checks on tie rods, use of calibrated torque wrenches

Trigger: Corrosion due to chemical exposure
Failure: Structural weakening and potential rupture
Mitigation: Material selection based on fluid compatibility, protective coatings, regular inspections

Trigger: Thermal cycling stress
Failure: Fatigue cracking near bolt holes
Mitigation: Design with adequate thickness, stress-relieving heat treatment, controlled heating/cooling rates

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Flatness within 0.5 mm per meter, bolt hole positions ±0.2 mm, surface roughness Ra ≤ 3.2 μm

Test Method

Dimensional inspection with CMM, pressure testing per ISO 15547, material certification per ASTM standards

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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Manufacturers of Frame Plate (Pressure Plate)

Manufacturer profiles associated with Frame Plate (Pressure Plate).

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Frequently Asked Questions

What is the difference between Frame Plate and Cover Plate in a plate heat exchanger?

The Frame Plate is the stationary end plate that remains fixed, while the Cover Plate is movable and applies clamping force via tie rods. Both work together to compress the plate pack.

How often should Frame Plate bolts be retightened?

Initial retightening after 24-48 hours of operation, then annually or as per manufacturer's guidelines, depending on thermal cycling and pressure conditions.

Can Frame Plates be customized for different plate materials?

Yes, Frame Plates are often custom-designed to match plate pack dimensions, port configurations, and material compatibility with process fluids.

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.

Frame Plate (Pressure Plate)