JIS flange series
JIS B2220
JIS flange enquiries use A-size and K-rating designations. Confirm the selected type and drilling together with the material specification; a matching nominal size alone does not establish compatibility with another standard.
- Standard reference from the category page
- JIS B2220; edition TBC.
- Material families — separate options
- Carbon steel; stainless steel; alloy steel. Exact grade and product form TBC.
- Pressure designations listed
- 5K / 10K / 16K / 20K / 30K
- Catalogue nominal-size range
- 10A–1500A; applicable type/rating range TBC.
- Material examples in the introduction
- A105; 316/L stainless steel — exact material specification/grade TBC.
- Forms in the introduction
- SOP; blind; plate; weld neck. Source token SPH is unconfirmed.
- Structure options listed
- Slip-on; weld neck; plate; blind; socket weld; threaded; lap joint.
- Ordered size and drilling
- TBC — no size-by-size dimensional table is published on this product page.
- Pressure–temperature rating
- TBC for the selected material, standard, size and operating temperature.
Confirm configuration, price, quantity and lead time for each enquiry.
Selection questions
What should I include in a flange enquiry?
Provide standard and edition, size, material specification and grade, type, pressure designation, facing, quantity, and design pressure/temperature. Include a mating drawing when drilling or bore dimensions are critical.
Does the pressure designation equal the working pressure?
No single operating-pressure value follows from PN or Class alone. Confirm the applicable pressure–temperature rating for the selected standard, material and temperature.
Can flanges of the same nominal size be connected directly?
Check the exact standard, bolt-hole count and diameter, bolt circle, bore, facing and gasket arrangement. A matching size label alone does not establish interchangeability.
Specifications compiled from available product documents。Dimensions, performance and suitability are subject to confirmed drawings and ordering documents.
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