Product Introduction
Loose flange, also known as lap joint or loose flange, consists of a flange ring and a short section. The structure is special, the flange ring can rotate, and the pipeline is not directly welded to avoid flange deformation. Flexible installation, directly slide onto the pipeline, and weld for reinforcement.
It is mainly used for facilitating pipeline installation, disassembly or adjustment, while reducing welding stress between flanges and pipelines, and is suitable for pipeline systems that require frequent maintenance or adjustment.
We offer a full range of stainless steel, duplex, and flange in various sizes to meet different standards.
Prodection Details
Every detail is precisely manufactured to ensure smooth welding and perfect alignment.
Large inventory for fast delivery - We maintain stock of standard sizes to shorten delivery time.
We have our own independent production line and accept custom orders.
From raw materials to final inspection, every process is strictly controlled to ensure consistent quality.
Product Packaging
Deliver, Shipping And Serving
We offer customized packaging and flexible shipping solutions to ensure products arrive safely and on time.
Product Parameter (Specification)
We offer a full range of stainless steel, duplex, and alloy steel cross fittings in various sizes to meet different piping requirements.
|
Product Name |
Lap Joint Flange |
|
Material |
Stainless steel 304, 316 or as per your requirements |
|
Specification |
1/2 "to 48" |
|
Pressure level |
150LB to 2500LB (ASME B16.34) or PN2.5 to PN160 |
|
Specialization |
According to the drawings |
|
Standard |
ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, JIS, SABS1123, GOST-12820 |
|
Coating/Surface Treatment |
Rust-preventive paint, black paint, yellow transparent paint, galvanized, hot and cold impregnation |
|
Flange face type |
Plane (FF), convex (RF), annular joint (R]T) |
What is the difference between lap flanges and sliding flanges?
The difference between lap flanges and sliding flanges lies in their design and function. A lap flange consists of two parts: a short end welded to the pipe, and a loose backing flange around which it can rotate freely.
In contrast, a sliding flange is a one-piece assembly that slides onto the pipe and is welded into place, providing a simpler and more cost-effective connection. Sliding flanges are typically used in low-pressure applications where frequent disassembly is not required.
What are the advantages of lap flanges?
The difference between a swivel flange and a lap flange is that a swivel flange consists of two separate components: a swivel ring flange and a welded hub or collar that connects to the pipe.
The lap flange also has two parts, but it uses a short end instead of a welded hub, and its backing flange is loose rather than fully rotating like a swivel flange.
What is the difference between lap flanges and varnish flanges?
The difference between lap flanges and varnish flanges lies in their manufacturing and sealing methods.
When should I not use lap flanges?
Lap flanges are not recommended for high-pressure applications because the design cannot provide the same strength or sealing integrity as other flanges, such as welded or sliding flanges, in high-pressure environments.
In applications with severe vibration or significant movement (e.g., in mechanical or dynamic systems), lap flanges may not provide the necessary sealing integrity or stability, as a loose flange may move or vibrate under severe conditions.
Company Introduction
Jiangsu Tisco Equipment Co., Ltd. is a comprehensive valve company integrating manufacturing and trading. We specialize in producing valves and processing stainless steel products such as ball valves, gate valves, butterfly valves, globe valves, as well as pipes, plates, profiles, stems, etc. In addition, copper, aluminum, titanium, and other alloy steels, such as Inconel, are also within our range. Due to our commitment to high quality, competitive prices, and excellent after-sales service, we have established long-term and stable relationships in domestic and international markets.
Our Advantages
- 24-hour online service
- Custom orders accepted. High quality, good price.
- We can help customers solve all engineering problems related to valves and fittings
FAQ
Q: Do you own your own factory?
A: Yes, we do. We have our own factory, and we can provide stable inventory, competitive prices, and good quality.
Q: Do you offer OEM or ODM services?
A: Yes, OEM and ODM services are available, including customization of materials, sizes, logos, and packaging.
Q: What payment methods do you accept?
1) 30% T/T prepayment and balance against copy of B/L.
2) 30% T/T prepayment and letter of credit balance.
Q: What is the delivery time?
A: 7-10 days after receiving the deposit.
Q: Why did you choose our company?
A: A). We have more stable inventory, competitive prices, and good quality.
B). We have more genuine experience in international trade.
C). We can help customers solve all engineering problems related to valves and fittings.
Q: Can you send a sample for inspection?
A: Yes, we can. We can send you samples free of charge.
Q: Can you manufacture products according to our requirements?
A: Yes, we will strictly follow your requirements, such as packaging method, product length, product handling etc.
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