Slip-On Welding Flange

Slip-On Welding Flanges are DIYE VALVE's core product, used to achieve detachable connections between pipes, valves, pumps, and pressure vessels. They feature a simple structure, convenient installation, and high cost-effectiveness, making them one of the most widely used flange types in the industrial field.

Their core working principle is to form a reliable seal by compressing the gasket, preventing media leakage during pipeline operation. Simultaneously, they enhance the structural strength of the pipe joint, resist vibration and pressure, facilitate equipment inspection, maintenance, and pipeline modification, and reduce system operation and maintenance costs.

Product Specifications and Standards

1. Strictly Compliant with International Standards

DIYE VALVE Slip-On Welding Flange strictly adheres to ASME B16.5 (standard diameter) and ASME B16.47 (large diameter custom) standards. Matching components conform to ASTM standards, ensuring compatibility and interchangeability with international piping systems.

2. Full Range of Specifications and Customization Capabilities

- Pressure Ratings: Standard Class 150 to 2500, covering most low- and medium-pressure operating conditions.

- Standard Diameters: NPS 1/2″–24″, suitable for conventional process piping.

- Customization Services: Supports large diameters, special diameters, special thicknesses, and special sealing surfaces to meet individual needs.

3. Sealing Surface Options

- RF (Raised Face): Suitable for general conventional operating conditions, the most widely used.

- MFM (Mixed Face): Prevents gasket detachment, suitable for media containing particles or erosion.

- FF (Flat): Suitable for atmospheric pressure applications, equipment, and enamel and plastic pipes.

Core Advantages

1. High Cost-Effectiveness: Simple structure, low manufacturing cost, quick installation, shortening construction time and reducing labor costs.

2. Reliable Performance: Strict quality control throughout the entire process from raw materials to production, strong pressure resistance, vibration resistance, and leak prevention capabilities.

3. Wide Compatibility: Adaptable to various pipe materials and piping systems, conforms to international standards, and facilitates replacement and maintenance.

Application Scenarios

The Slip-On Welding Flange is widely used in chemical, petroleum, power, HVAC, and various industrial engineering projects, especially suitable for medium and low pressure conventional process pipelines. It is an ideal pipe connection choice for scenarios requiring convenient installation and high cost-effectiveness.

Value-Added Services

1. Surface Treatment: Provides pickling and passivation services, and anti-corrosion coating services to extend product lifespan.

2. Documentation Support: Provides multilingual technical documentation and foreign trade customs documents for convenient international trade and on-site use.

3.Customization Support: A professional technical team provides one-stop customized solutions to meet specific customer needs.

Technical Parameters

DIYE VALVE, a Chinese factory with many years of experience in flange production and export, possesses a professional technical team and a strict quality control system to ensure that every slip-on welding flange meets international standards and customer requirements. We are committed to becoming a globally trusted flange supplier.

FAQs

Q: What parameters need to be provided when ordering American standard flanges?

A: Standard (ASME B16.5/B16.47) + NPS size + Class pressure rating + Model (WN/SO/BL, etc.) + Sealing surface + Material + Delivery requirements.

Q: How to choose between RF and RJ sealing surfaces in American standard flanges?

A: RF (Raised Face): Universal type, suitable for spiral wound gaskets, sufficient for most medium and low pressure working conditions;

RJ (Ring Joint Face): Exclusive for high temperature and high pressure, matched with metal octagonal/elliptical ring gaskets, used for oil and gas wellheads, autoclaves and main steam pipelines.

Q: What is the technical boundary between ASME B16.5 and B16.47 flanges?

A: B16.5: Conventional pipe flanges, NPS 1/2″～NPS 24″, the main force for petrochemical and process pipelines;

B16.47: Large-diameter pipeline flanges, NPS＞24″, divided into Series A and Series B, used for long-distance pipelines and large interfaces in tank farms.

Q: What are the regular grades of carbon steel/stainless steel for American standard flanges?

· Carbon steel forgings: A105 (for high-temperature working conditions);

· Stainless steel forgings: A182 F304 / F316L;

· Alloy steel: A182 F11/F22 (for high-temperature thermal power);

· Low-temperature steel: A350 LF2/LF3 (for cryogenic working conditions).