PRODUCT DETAILSUHP & Specialty Gas Gaskets
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UHP & Specialty Gas GasketsPRODUCT RENDER · REFER TO DRAWING & ACTUAL PART

SEALING / GAS SEALS

UHP & Specialty Gas Gaskets

316L stainless steel and pure nickel metal face-seal gaskets for ultra-high-purity and specialty-gas piping, with standard, retainer-assembly and blind-gasket options.

Product specifications

Materials
316L stainless steel / Pure nickel
Nominal connection sizes
1/8–1 in.
Listed thickness
0.8 mm
Finish options
Unplated / silver-plated, confirmed per order

Material, dimensions and performance follow the confirmed drawing, sample and acceptance conditions.

COMPONENT / APPLICATION

Define the surface around its function.

Gasket selection and drawing-based customization for metal face-seal connections in ultra-high-purity and specialty-gas piping. Review material, sealing surface, connection size and packaging together against the actual assembly.

Gas-gasket series · Additional dimensional reference

This supplementary dimensional table comes from the company product material and is separate from the GR / GT / GB reference. Nominal sizes and E / Tx dimensions are retained. Confirm part references from the final drawing; the two dimensional references are not interchangeable.

Nominal size (in.)E in. (mm)Tx in. (mm)
1/8″0.09 (2.3)0.26 (6.6)
1/4″0.22 (5.6)0.47 (11.9)
1/4″0.22 (5.6)0.50 (12.7)
1/2″0.44 (11.2)0.78 (19.8)
5/8″0.58 (14.7)0.91 (23.1)
3/4″0.66 (16.8)1.14 (29.0)
1″0.89 (22.6)1.40 (35.6)

Material examples: NI denotes pure nickel and SS denotes 316L stainless steel. Two outside diameters are listed for 1/4 in.; specify the required version.

View original GR / GT / GB specification image ↗

EXPLORE THE FAMILY

Products & examples

Select a component to review material, geometry and selection details.

TECHNICAL BRIEF

Make the requirement specific.

A clear brief helps define selection, sampling and the manufacturing approach.

  1. 01

    Connection & part reference

    Nominal connection size, fitting reference and dimensional drawing

  2. 02

    Material & finish

    316L or nickel, plated or unplated, and sealing-surface requirements

  3. 03

    Dimensions & assembly

    Bore, outside diameter, thickness and retainer requirements

  4. 04

    Inspection & packaging

    Test conditions, cleanliness requirements, quantity and packaging

HOW WE WORK

From requirement to delivery

  1. 01

    Review

    Material, geometry and functional surfaces

  2. 02

    Sample

    Process, stock allowance and acceptance

  3. 03

    Process & inspect

    Processing and inspection to agreed requirements

  4. 04

    Clean & package

    Agreed component and delivery requirements

LET’S MAKE IT PRECISE

Your drawing. Our next conversation.

Material · Dimensions · Quantity · Critical requirements · Application

Wuxi Chaohao Machinery Manufacturing Co., Ltd.

© 2026 CHAOHAO. UHP and specialty-gas gaskets · Precision lapping · Global sourcing