LOOSE FLANGE

MstnLand's series of loose flange is usually produced with the size ranging between DN15‐DN600. Loose flange is a two-piece component. The first piece is known as a stub end and the second piece is referred to as a backing flange. As for the stub end, which is a sleeve and is shaped similar to a short piece of pipe. This flange has a narrow shoulder on one end, with the other end or the hub that has been butt welded. The dimensions of the narrow shoulder are like the raised face of the flange, whereas the butt weld end of the stub-end is similar to the neck of a weld neck flange, down to the diameter and thickness. The back face of the hub of the loose flangeis produced 0with a rounded transition that attaches the hub to the sleeve.

Body material:	Carbon Steel, Alloy Steel, Stainless Steel
Size range:	DN15～600
Pressure rating:	CLASS 150lb～2500lb
Sealing surface	FF
Applicable medium:	Water, Steam≤1.0MPa, Oil&Gas
Applicable industry:	Pipelines with large fluctuations in temperature or pressure or pipelines with high temperature, high pressure and low temperature and also used to transport expensive media, flammable and explosive media and toxic gases.
Design & Manufacture:	API, ASME, ASTM, ANSI, BS, EN, DIN, JIS, ISO, SANS, GOST, GB.

Loose flange vs Slip-on flange

Advantages of loose flanges:

In a corrosive situation, the flange joints need to be exchange very soon. To a loose flange, only the stub end is touch with the pipe and fluid, the backing flange no need to touch it. It means you could only replace the stub end , no need to replace the backing flange, so the loose flange can decrease the cost of the piping systems. The backing flange and the stub end is seperated, so we can use two different materials for the two pieces. It can work for more complicated application.

Advantages of slip on flanges:

Less time needed to spent on ensuring the accuracy of the cut pipe.

They prevent leakage.

Loose flange can help

Due to the nature of pipelines, the connections and couplings can rarely be constructed in advance. The use of loose flanges allows workers to create a joint at any feasible location along the pipe.The worker simply cuts the pipe at the required location and places a loose flange at the end of the pipe. After carefully preparing the pipe for welding, permanently weld the loose flange to the pipe end. If a valve or elbow is required, the worker simply welds the flange to the elbow or valve and the pipe and the joint is made.

In many cases, pipes are welded together using straight pipe sections and loose flanges to form a complete pipe line. Whether hand welded or machine welded, pipes are assembled from straight cut ends of pipes that are welded together to form a nearly seamless pipe, with flanged joints installed at key points in the pipe. In these locations, loose flanges are welded to the pipe on both sides of the fitting, and the pipes are bolted together using washers and a number of hardened bolts.

If you are looking for professional check valve manufacturers, please contact us, and we will be your best partner.

Другие товары поставщика

	RISING STEM GATE VALVES	China cast steel gate valveproduced by MstnLand, a China gate valvesmanufacturer, can be used in many situations. The opening and closing part of a...
	GLOBE VALVES	MstnLand is a reliable globe valve factory, globe valve company. We provide high-quality industrial globe valvesproducts, including API globe valve...
	CHECK VALVES	As one of the ball check valve manufacturers, MstnLand provides high performance ball valve check valve, ball type check valveproducts, including S...
	CHECK VALVES	As one ofvertical check valve manufacturers, MstnLand provides high performance check valves exporter, including Swing check valve, Lifting check v...
	STAINLESS STEEL GATE VALVES	Stainless steel gate valves refers to the lifting movement of the opening and closing body (valve plate) driven by the valve chinastem driving seal...

Все товары поставщика

Похожие товары

	China Wholesale High Performance Butterfly Valve Supplier	Продавец: Tianjin Tanggu TWT Valve Co., Ltd.	High Performance Butterfly Valve Definition A high performance butterfly valveis a type of valve...
	China High Quality Ductile Iron Double Eccentric Butterfly Valve Pricelist	Продавец: Tianjin Tanggu TWT Valve Co., Ltd.	Product Description Product Name ductile iron double eccentric butterfly valve ...
	China Wholesale AWWA C509 Gate Valve Factory	Продавец: Tianjin Tanggu TWT Valve Co., Ltd.	Product Description Product Name AWWA C509 gate valve Manual Manu...
	Wholesale Resilient Seat Seal Groove Rising Stem Gate Valve Quotes	Продавец: Tianjin Tanggu TWT Valve Co., Ltd.	Product Parameters Fluid medium Water, oil, gas, etc. Temperature Rang...
	China OEM Steel Gate Valve Series For Sale	Продавец: Tianjin Tanggu TWT Valve Co., Ltd.	Product Description As a China industrial valves manufacturer, TWT introduces Steel Gate Valve S...