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Tekron · Trekre
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Japanese standard gate valve

JIS gate valves must be selected using the specified JIS design, flange and test requirements. A JIS pressure designation is not a direct conversion to PN or ASME Class.

JIS gate valves: compare construction, connections and application requirements. Confirm materials, operating conditions and complete-valve ratings for your project.

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JIS gate valves — Selection and installation guide

Design and application checks

JIS gate valves must be selected using the specified JIS design, flange and test requirements. A JIS pressure designation is not a direct conversion to PN or ASME Class.

For replacement, compare flange drilling, facing, face-to-face length, bore and pressure–temperature limits. Do not assume that identical nominal sizes or similar pressure names make JIS, GB, EN or ASME valves interchangeable.

What should I provide for a quotation?

Provide the fluid and composition, solids content, normal and design pressure and temperature, DN or NPS, connection standard, installation orientation, operating duty and required inspection documents. State any corrosion, vacuum, fire-safety or emissions requirements separately.

How do I confirm the pressure and temperature rating?

Use the approved data sheet, nameplate and pressure–temperature limits for the complete valve, including its seat, lining and seals. PN, ASME Class and JIS K are different designation systems, not a fixed numerical conversion. A shared nominal size does not establish flange interchangeability.

What must be checked before installation?

Compare the face-to-face dimension, flange drilling and facing, pipe bore, flow direction and maintenance clearance with the approved drawing. Clean and isolate the pipeline, release pressure and follow the product installation instructions. Do not use flange bolts to pull misaligned pipework into position.

Related product categories

Tekron & Trekre

Valve

01 How should one compare valve brands and suppliers?
The manufacturing standards, material grades, pressure levels, leakage requirements, inspection documents, supply boundaries, delivery cycles and after-sales responsibilities should be compared based on the same technical conditions. If the technical conditions are different, comparing only the brand names or quotations would not be comparable.