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GOST Flanges

Your Professional GOST Flanges Supplier

Our goal is to be your true partner in GOST Flanges field in China.We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

Ss Plate Flange
SS Plate Flange is a type of flange that is designed to be welded to a pipe and then joined to another flange or fitting. Its main characteristics include:
1.Simple Design: It has a simple,...
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Weld Neck Pipe Flange
Characteristics of Weld Neck Pipe Flange:
1.Strong Connection: Weld Neck Pipe Flange provide excellent strength and stability due to their long tapered neck, which allows for a more gradual...
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Blind Flange End
Blind Flange End Characteristics:
1. Corrosion Resistance: Blind Flange End offer excellent resistance to corrosion, making them suitable for harsh environments.
2. High...
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Loosed Flange
优化中
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Why Choose Us

Product application

Our products are widely used in power plants, nuclear power, petrochemicals, natural gas, military, municipal infrastructure, metallurgy, construction, pharmaceuticals, papermaking, coal mining, cement production, pollution control, environmental protection and energy conservation.

Production equipment

We have more than 120 equipment, demonstrating our strong production capacity and commitment to high-quality production. The rich product line enables us to efficiently meet various project needs and maintain a competitive advantage in the industry.

One-stop service

Inquiry-quotation-sample-order-production-delivery-after-sales service.

Sales team

Well-trained and experienced - quick response - smooth communication - timely quotation - perfect solution.Working with us will give you peace of mind.

Advantages of GOST Flanges

Simple design

It has a simple, flat surface that allows for easy installation and alignment.

Welded connection

Provides a strong, leak-proof connection due to the welded joint, making it suitable for high-pressure applications.

Low profile

Its slim design allows for saving space in piping systems, making it ideal for compact installations.

Cost-effective

Generally more affordable compared to other types of flanges, like raised face flanges.

Applications of GOST Flanges

1. Oil and gas pipelines

2. Chemical processing plants

3. Water treatment facilities

4. Power generation systems

5. Food and pharmaceutical industries (especially when using 316 stainless steel)

6. Their flat design allows easy disassembly and maintenance, making them perfect for systems that require frequent access or cleaning.

Product Description

Material	SS304, SS316, SS304L, SS316L, SS321, SS310 ,1.4401, 1.4403 Duplex Stainless Steel: 9041L 2205, 2507, 254SMO, etc
Type	Plate
Class	PN6 PN10 PN16 PN25 PN40 PN63
Standard	GOST12820, GOST12821, GOST12836, GOST33259
Size	DN15 to DN2000
Connection	RF
Application	For Water, Oil and Gas Industrial
Certificate	CE / ISO / SGS

Process Flow

productcate-1-1

Delivery

Selling units	Single item
Single package size	20X20X30 cm
Single gross weight	5.000 kg

Lead Time

Quantity (pieces)	1 - 10	11 - 50	> 50
Lead time (days)	15	30	To be negotiated

Packaging & Shipping

Ultrasonic cleaning & surface prep
Each flange/fitting undergoes ultrasonic degreasing, followed by manual wiping with lint-free cloths.

Individual protective packaging
Bubble film wrapping + protective caps (optional per request).

Reinforced wooden crating
Customized plywood boxes or pallets with steel reinforcement.
Large flanges (>dn500): Secured on fumigated plywood pallets with corner protectors.

Traceability & compliance marking
Laser-engrave/print labels with: Product code, material grade, heat no., and your logo (oem supported).

Pre-shipment verification
Send 360° photos/video of packed crates for your approval before loading.

FAQ

Q: Do you accept custom flanges?

A: Yes, we can accommodate custom requests according to your drawings.

Q: What is your delivery lead time?

A: For a full container load, the lead time is 15 to 20 days. For orders less than a full container, the lead time is 5 to 10 days.

Q: How is the quality of your products?

A: With 12 years of manufacturing experience, we maintain strict quality control and can easily pass your third-party inspections.

Q: How competitive are your product prices?

A: As a professional manufacturer, our prices are also competitive and can provide you with unexpected advantages in the market.

Q: What trade terms do you offer?

A: We can accommodate various trade terms, including EXW, FOB, CFR, CIF, and DDP.

Q: What currencies do you accept?

A: We primarily accept USD and RMB, but we can also accept other currencies if permitted by the bank.

Q: What types of certificates of origin can you provide?

A: We can provide CO, FORM A, FORM B, FORM E, FORM P, FORM F, FORM R, FORM AU, FORM KO, FORM N, FORM X, FORM S, FORM L, and FORM H.

Q: What are your payment terms?

A: We require a 30% deposit, with the remaining 70% payable before shipment or upon receipt of the bill of lading.

Zhejiang Chengjiu Pipeline Co., Ltd. is one of the most professional gost flanges manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade gost flanges from our factory. For price consultation, contact us.

gost flanges, Blind Flange End, asme 16 5 flange dimensions in mm