Are JIS Blind Flanges suitable for fire protection systems?

Yes. JIS Blind Flanges are widely used in fire protection piping systems for end closures, system isolation, and maintenance purposes.

What gasket should be used with a Blind Flange?

The gasket type depends on the operating conditions. Common options include rubber gaskets, graphite gaskets, and spiral wound gaskets, selected based on pressure, temperature, and medium.

Can JIS Blind Flanges be customized?

Yes. Customization is available for special sizes, thicknesses, materials, surface treatments, and coatings according to project requirements.

Custom Size Carbon Steel DN15-DN4000 Stainless Steel JIS DIN ISO Various Blind Flange for Pipe Connection

Name: Custom Size Carbon Steel DN15-DN4000 Stainless Steel JIS DIN ISO Various Blind Flange for Pipe Connection
Brand: Maitolead Pipeline Technology(Tianjin)Co., Ltd.
SKU: 1983233861

Tianjin, ChinaMaitolead Pipeline Technology(Tianjin)Co., Ltd.

US$3.55-15.00

50 Pieces

Product specifications

SIZE

Product profile

Customization

Available

Standard

ANSI, DIN, GB, JIS, GOST, BSW

Type

Threaded Connection Flange

Model NO.

BL 01

Material

Stainless Steel,Carbon Steel,Alloy Steel

Structure

Flanges

Connection

Welding

Sealing Surface

Manufacturing Way

Forging

Pressure

Pn6 Pn10 Pn16 Pn25 Pn40, 5K, 10K, 16K, 20K, 30K

Technics

Forged

Product Name

Blind Flange

Model Number

BS4504 Blind105

Certificate

ISO, CE, PED, BV, Ks

Usage

Joining Pipe Lines

Transport Package

Wooden Box

Specification

DN10-DN2000

Trademark

Maitolead

Origin

Hebei, China

HS Code

7307210000

Production Capacity

1000000piece/Year

Key features

Wide Size Range: Available in sizes from DN15 to DN4000 to meet diverse piping needs.

Multiple Material Options: Constructed from Carbon Steel, Stainless Steel, and Alloy Steel for durability.

International Standards: Compliant with ANSI, DIN, JIS, ISO, GB, and GOST standards.

Forged Manufacturing: Manufactured using forging techniques for superior strength and reliability.

Customization Support: Supports custom sizes, materials, and non-standard designs based on drawings.

Certified Quality: Holds ISO, CE, PED, BV, and KS certificates with EN 10204 test reports.

Versatile Applications: Ideal for petroleum, chemical, power, and fire protection systems.

Low MOQ: Minimum Order Quantity starts at just 10 pieces for flexible purchasing.

Company profile

Maitolead Pipeline Technology(Tianjin)Co., Ltd.

Tianjin, China

Business Type: Trading Company, Group CorporationAverage Response Time: ≤4.19h

AI-Powered supplier vetting

SummaryMaitolead Pipeline Technology (Tianjin) Co., Ltd. is identified as a Chinese trading company/group corporation focused on industrial equipment and components, including multiple pipe fitting, flange, and valve categories. It has self-operated import and export rights, reports that exports comprise 90% of total sales, and is located in Tianjin with service proximity to Tianjin Port. Its stated service infrastructure is limited: no overseas showroom, agents, branches, or reported offline trade-show participation. R&D resources are minimal, with one R&D engineer and no new products launched in the past year; ODM, SDK, and well-known-brand OEM services are unavailable. Customization from samples is offered. Complaint handling, corrective/preventive action, and approved-supplier-list procedures are not documented in the provided data. Certification, production facilities, customer cases, raw-material traceability, and quality assurance remain unverified.

Supplier typeThe supplier is explicitly described as a trading company and group corporation, with a limited-company ownership structure and a business focus on industrial equipment and components. Its listed offerings cover pipe fittings, flanges, and valves, while the registered and physical addresses are both in Tianjin.

After-Sales capabilityThe supplier has no overseas showroom, overseas agents or branches, and no reported offline trade-show participation. It also has no written procedures or records for customer complaints or corrective and preventive actions, indicating documented after-sales processes are not demonstrated.

R&D capabilityThe supplier reports one R&D engineer and no new products launched in the past year. It also does not provide ODM services, SDK availability, or OEM services for popular brands, which indicates limited demonstrated innovation capability.

Customization capabilityThe supplier explicitly states that it provides customization from samples. This is direct evidence of a sample-based customization service, although no broader engineering or design capacity is specified.

Product Q&A

Q:What is a Blind Flange used for?

A blind flange is used to close the end of a piping system or pressure vessel opening. It is commonly applied for pipeline isolation, pressure testing, maintenance, or future system expansion.

Q:What is the difference between a Blind Flange and a standard flange?

A blind flange has no center bore and is designed to block fluid flow, while a standard flange has a bore that allows the medium to pass through and is used for pipe connections.

Q:Can a JIS Blind Flange be used with DIN or ANSI flanges?

Direct interchange is not recommended. JIS, DIN, and ANSI standards differ in dimensions such as outside diameter, bolt circle, and bolt hole size. Compatibility must be confirmed before installation.

Q:What materials are available for JIS Blind Flanges?

Common materials include carbon steel (SS400, S20C), stainless steel (SUS304, SUS316), and alloy steel. Special materials can be provided upon request.

Q:What pressure ratings are available for JIS Blind Flanges?

JIS Blind Flanges are typically available in 5K, 10K, 16K, and 20K pressure classes, depending on the application requirements.