Rizhao Xinwei Machinery Parts Co., Ltd.
Rubber gaskets

Rubber Flange Gaskets

Ring or full-face gasket projects for bolted flange joints, with the flange form and loading conditions identified.

Custom component seriesDrawing / sample review
Flange identity
Standard/edition, nominal size and facing, or a dimensioned drawing
Gasket geometry
ID, OD, thickness and bolt holes/bolt circle in mm
Hardware
Flange material, bolt size/count and compression limits
Process
Fluid, concentration, operating/peak temperature in °C
Read engineering & procurement details ↓

Define the flange before the gasket

A nominal pipe size does not fully describe a flange gasket. Provide the flange standard and edition, facing type, inside/outside diameters and bolt-circle details, or a drawing for a non-standard joint.

  • Distinguish full-face and ring-style layouts.
  • Include the flange material and condition.
  • Identify the tightening procedure specified by the assembly owner.

Compression depends on the complete joint

Gasket thickness and compound must be considered with the flange stiffness, bolt arrangement and process exposure. A flange pressure class is not a pressure rating for an unspecified rubber gasket. Supplier torque tables for a different gasket and joint cannot be transferred directly.

What the quotation should resolve

Agree the profile, compound, inspection dimensions and applicable joint validation before ordering. Any allowable bolt load or torque must come from the approved joint procedure; this family page deliberately gives no universal torque value.

Prepare your inquiry

  • Flange drawing or exact standard identification.
  • Process and cleaning conditions.
  • Specified joint assembly procedure.
  • Required material/inspection documents and quantity.

Buyer questions

Does the flange class define the gasket rating?

No. The joint, gasket construction and service conditions must be evaluated together.

Can I use a torque value found online?

Use the procedure approved for the actual flange, bolts and gasket. A table for another construction may have different assumptions.

Related project families

Engineering reading

General references and scope

These references explain general engineering or regulatory context. They are not Xinwei finished-product specifications, test results or compliance evidence.

SPECIFICATION REFERENCE

Define the part for its working conditions.

These are project discussion inputs. Compound, tolerances and validated performance require agreement for the specific part.

Specification reference

Selection / definitionReference and project conditions
Flange identityStandard/edition, nominal size and facing, or a dimensioned drawing
Gasket geometryID, OD, thickness and bolt holes/bolt circle in mm
HardwareFlange material, bolt size/count and compression limits
ProcessFluid, concentration, operating/peak temperature in °C
PressureWorking, transient and test conditions in explicitly named units
Assembly acceptanceApproved tightening procedure and leakage test method

KNOWLEDGE & SELECTION

Engineering reading

Knowledge center

CONTINUE THE COMPARISON

Related product series.

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Start with the application.
Define the part together.

Share your drawing or sample, working conditions, quantity and acceptance requirements with our team.

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