What standards do your flanges comply with?

Our flanges are manufactured in accordance with international standards such as ANSI, DIN, EN1092, JIS, BS, and GOST.

What is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

What surface treatments are available?

Options include anti-rust oil, black paint, zinc plating, hot-dip galvanized, and other coatings based on customer requirements.

Carbon Steel S235jr Material Slip on Flange for Pipeline System

Name: Carbon Steel S235jr Material Slip on Flange for Pipeline System
Brand: Maitolead Pipeline Technology(Tianjin)Co., Ltd.
SKU: 1984385741

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

US$8.00-22.00

10 Pieces

Product specifications

SIZE

Product profile

Customization

Available

Standard

ANSI, DIN, GB, JIS, GOST, BSW, GOST Atk 24.200.02.90

Type

Welding Flange

Model NO.

BS 4504 SO

Material

Stainless Steel,Carbon Steel,Alloy Steel

Structure

Flanges

Connection

Welding

Sealing Surface

Manufacturing Way

Forging

Technics

Forged

Product Name

Blind Flange

Model Number

BS 4504

Certificate

ISO, CE, PED, BV, Ks

Usage

Joining Pipe Lines

Pressure

Pn6 Pn10 Pn16 Pn25 Pn40

Transport Package

Wooden Box

Specification

DN10-DN2000

Trademark

Maitolead

Origin

Hebei, China

HS Code

7307210000

Production Capacity

1000000piece/Year

Key features

Multi-Standard Compliance: Manufactured to ANSI, DIN, EN, JIS, BS, and GOST standards for global compatibility.

Wide Material Selection: Available in Carbon Steel, Stainless Steel, and Alloy Steel for diverse working conditions.

Customization Support: Offers material, size, drawing-based non-standard fabrication, and packaging customization.

Comprehensive Certification: Holds ISO, CE, PED, BV, and KS certificates with EN 10204 3.1B test reports.

High Pressure Rating: Supports pressure ratings up to PN40/PN100 and Class 150-2500 for demanding systems.

Professional Manufacturing: 10+ years experience with forging, ring-rolling, and CNC machining capabilities.

Global Export Experience: Exports 50,000 tons annually to 30+ countries with reliable supply chain.

Versatile Application: Suitable for petroleum, chemical, HVAC, fire protection, and power industries.

Company profile

Maitolead Pipeline Technology(Tianjin)Co., Ltd.

Tianjin, China

Business Type: Trading Company, Group CorporationAverage Response Time: ≤3.71h

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 BS 4504 Code 105?

BS 4504 Code 105 corresponds to PN40 pressure rating, defining flange dimensions and pressure performance.

Q:Can BS 4504 blind flanges be used as permanent closures?

Yes. They are suitable for both permanent sealing and temporary isolation, depending on system design.

Q:Are BS 4504 blind flanges interchangeable with EN 1092-1 flanges?

BS 4504 is the predecessor of EN 1092-1. While many dimensions are similar, interchangeability should be confirmed case by case, especially for PN40 systems.

Q:Which gasket type is recommended for PN40 applications?

Spiral wound or metal-reinforced gaskets are commonly recommended for high-pressure PN40 systems.

Q:Are custom materials, sizes, or markings available?

Yes. Custom sizes, materials, coatings, and project-specific markings can be supplied upon request.