A105 Carbon Steel Blind Flange for Water Supply
For industrial sourcing
Prepare a clearer RFQ
Include the details below so RELIA can understand the part and discuss the next step with you.
- Drawing, sample, or reference standard
- Material grade and preferred process
- Dimensions, tolerances, and surface finish
- Application, target quantity, and destination
Production timing, packing, and shipping terms are confirmed for each project after specifications and trade terms are agreed.
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Surface TreatmentPolishedApplicationIndustrial Equipment
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Bolt Hole Diameter1/2"Bolt Hole Quantity4
This industrial water supply listing describes an A105 carbon steel blind flange with a GOST standard reference. The actual catalog includes a Carbon Steel and Blind Flange combination among other options. Select the intended closure and confirm the governing requirements before using the title as a purchase specification.
Define the water-system closure
Provide the mating flange designation, required size, pressure class and facing. Specify the blind thickness, bolt circle, hole count and diameter together with the gasket and bolting arrangement. The four half-inch holes shown in the table should be checked against the actual selected drawing.
The shared 1/2–120 inch range spans several materials and nine flange type labels. Confirm the exact blind flange configuration and availability; connection, orifice and spectacle blind options do not automatically provide the same closure. Plate wording in the title does not establish the production route or a measured thickness.
Verify the GOST and A105 references
Request the numbered GOST specification, edition and applicable requirements for the proposed blind flange. The broad standard label does not identify a complete dimensional or acceptance package. Confirm the actual material specification and records supporting the A105 designation rather than assuming equivalence or dual conformity.
Obtain the material grade, condition, chemistry and traceability, together with the inspections required by the selected purchase standard. Clarify the intended surface condition beyond Polished. A finish label alone does not establish a coating system or corrosion performance in the water environment.
Assess industrial water duty and supply acceptance
State operating pressure, temperature, cycles, water chemistry, treatment and relevant contaminants or external exposure. Industrial water supply wording does not establish potable-water approval. Review the selected material and assembled joint against the actual requirements, then confirm marking, preservation, quantity, inspection documents and delivery timing for the approved closure.
Technical information for every product inquiry
Prepare the requirement before final product confirmation.
The product page is a starting point. Drawings, samples, interfaces, materials, quantities and acceptance requirements are reviewed before stock matching or custom production is confirmed.
Discuss this product in your project context.
Share the available drawing, sample, reference, target quantity and application information. Unknown items can remain open for review.
