GOST 12836 Blind Flange Stainless Carbon Steel

Short Description:

Name: Blind Flanges
Standard:GOST 12836
Material:Carbon Steel/ Stainless Steel
Specifications:NPS 15-1200
Connection mode: Welding
Production method:Forging
Acceptance: OEM/ODM, Trade, Wholesale, Regional Agency,
Payment: T/T, L/C, PayPal

Any inquiries we are happy to reply, please send your questions and orders.
Stock Sample is Free & Available

Product Detail





Product Tags


Product Name Blind flange
Size 1/2"-250"
Pressure 150#-2500#,PN2.5-PN40
Standard ANSI B16.5,EN1092-1, SABA1123, JIS B2220, DIN, GOST,etc.
Wall thickness SCH5S, SCH10S, SCH10, SCH40S,STD, XS, XXS, SCH20,SCH30,SCH40, SCH60, SCH80, SCH160, XXS and etc.
Material Stainless steel: A182F304/304L, A182 F316/316L, A182F321, A182F310S, A182F347H, A182F316Ti, 317/317L, 904L, 1.4301, 1.4307, 1.4401, 1.4571,1.4541, 254Mo and etc.
Carbon steel: A105, A350LF2, S235Jr, S275Jr, St37, St45.8, A42CP, A48CP, E24 , A515 Gr60, A515 Gr 70 etc.
Application Petrochemical industry;aviation and aerospace industry;pharmaceutical industry;gas exhaust;power plant;ship building;water treatment,etc.
Advantages ready stock,faster delivery time;available in all sizes,customized;high quality

GOST 12836

Product Introduction

Blind flange is called blind flange for short, but also called solid flange. The middle of the blind flange is solid, and there are bolt holes around it. It looks like an iron cover, so it is also called a flange cover. It is used to seal the end of the pipe. It is generally used at the end of the water supply branch pipe. In addition, it is used to temporarily seal the temporary part of the pipe section when the first pressure test is required. The shape and function of blind flange and spectacle blind are different.

The blind flange can be flat or convex, concave and convex, tenon and groove, and ring connection. It does not have a neck like the neck flange(weld neck flange or hubbed slip on flange). In short, the blind flange is designed to block the pipe mouth, so that the material in the pipe will not overflow, and is generally used at the end of the water supply branch pipe. There are many types of flange sealing surface, including plane, convex, concave and convex, tenon and groove, and ring connection surface.

Because most flanges allow air or fluid to pass through the internal opening when connecting, and when the blind plate is installed at the end, it can provide a well-formed termination point for the pipe connection, or it can redirect the required medium to another part of the pipe assembly.
Generally, blind flange will be selected under these circumstances and when the pipeline needs to be modified in the future.

Main Function

1. Connect the pipeline and maintain its sealing performance;
2. Facilitate the replacement of a section of pipeline;
3. Easy to disassemble and check the pipeline condition;
4. Facilitate the closure of a section of pipeline.

  • Previous:
  • Next:

  • 1.Shrink bag–> 2.Small Box–> 3.Carton–> 4.Strong Plywood Case

    One of our storage

    pack (1)


    pack (2)

    Packing & Shipment



    1.Professional manufactory.
    2.Trial orders are acceptable.
    3.Flexible and convenient logistic service.
    4.Competitive price.
    5.100% testing,ensuring the mechanical properties
    6.Professional testing.

    1.We can guarantee the best material according to related quotation.
    2.Testing is performed on each fitting before delivery.
    3.All packages are adapt for shipment .
    4. Material chemical composition is conformed with international standard and environment standard.

    A) How can I get more details about your products?
    You can send an email to our email address. We will provide catalogue and pictures of our products for your reference.We can also supply pipe fittings, bolt and nut, gaskets etc. We aim to be your piping system solution provider. 

    B) How can I get some samples?   
    If you need, we will offer you samples for free, but new customers are expected to pay express charge. 

    C) Do you provide customized parts? 
    Yes, you can give us drawings and we will manufacture accordingly. 

    D) To which country have you supplied your products?
    We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru , Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.). 

    E) I can’t see the goods or touch the goods, how can I deal with the risk involved?  
    Our quality management system conforms to the requirement of ISO 9001:2015 verified by DNV. We are absolutely worth your trust. We can accept trial order to enhance mutual trust.

  • Write your message here and send it to us