Weld Neck Blind Flange
Brief Introduction:
The official name of blind disk is Flange cover, and some are also called blind flange or pipe plug. It is a flange without a hole in the middle, which is used to block the pipe opening. The function is the same as that of the head and the cap, but the blind plate seal is a detachable sealing device, and the seal of the head is not ready to be opened again. There are many types of sealing surfaces, including flat surface, convex surface, concave-convex surface, tongue and groove surface and ring connection surface. Materials are carbon steel, stainless steel, alloy steel, copper, aluminum, PVC and PPR, etc. Here we only provide metal type blind flange, not including PVC or PPR material flange.
Usage and Types of Blind Flange:
From the appearance point of view, the blind plate is generally divided into a flat plate blind plate, a figure 8 blind plate, a plug-in plate, and a backing ring (the plug-in board and the backing ring are blind to each other). The blind plate plays the role of isolation and cutting, and the role of the head, pipe cap and welding plug is the same. Due to its good sealing performance, it is generally used as a reliable means of isolation for systems that require complete isolation. A plate blind plate is a solid circle with a handle and is used in systems that are normally isolated. The figure 8 blind plate is shaped like a figure 8, one end is a blind plate, and the other end is a throttling ring, but the diameter is the same as the diameter of the pipe, and it does not play a role in throttling. Figure 8 blind plate is easy to use. When isolation is required, the blind plate end is used. When normal operation is required, the throttle ring end is used. It can also be used to fill the installation gap of the blind plate on the pipeline. Another feature is the obvious identification, easy to identify the installation status.
Advantage of Our Company:
1. The surface is smooth, waterproof, rust-proof and dust-proof. 2. Various sizes and specifications, support customization. 3. Strict selection of materials, strong quality, long product life cycle. 4. The interface is flat and seamless, with sophisticated technology, economical and applicable.
Standard:
ANSI B16.5/ B16.47/ B16.36/ API605, 6A, 6B/ MSS SP44/ AWWA C207
DIN 2527/ 2528/ 2561/ 2565/ 2566/ 2573/ 2576/ 2627/ 2630/ 86029/ 86030 etc.
BS 4504 PN16/PN40, BS10 TABLE E/TABLE D
JIS/KS 5K, 10K, 16K, 20K, 30K
UNI 2253/2254/2276-2278/2281-2284/6083/6084/6089-6093
GOST 12820/12821
Material Available:
Carbon steel (ASTM A105 A350LF2 LF3 A694 A36 Q235 A3 20# 45# 20Mn 16Mn Q345 etc.);
Stainless steel (SS316, SS304, SS316L, SS304L, SS321 SS317 F51 F53 316Ti etc.);
Alloy steel (A182F5 A182F11 F22 15CrMo 30CrMo 35CrMo 40CrMO 42CrMo 4130 4140 etc.)
PN: 1.0--------58.0
American Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500
European Series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400
Flange Facing Types:
Flat Face (FF), Raised face (RF), groove (G), female(F), ring joints face(RJ)
Surface treatment:
Transparent oil, rust-proof black oil or hot galvanized treatment.
Packing:
Fumigation pallet, plywood cases or customer special demands
Applications range:
The weld neck blind flanges are widely used in petroleum, chemical, nuclear power plants, food manufacturing, construction, shipbuilding, papermaking, medicine and other industries.
Related Products:
Elbows, tees, reducers, pipe caps, flanges, seamless steel pipes, ERW, LSAW, and etc...
We sincerely wait for your inquiry of our Plate Heat Exchanger, flange, or any other product such as Tube Sheet, seamless pipes.
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