Flanges (Flange), also known as the flange or flange plate flange. Flanges are interconnected between the shaft and the shaft parts, the connection between the pipe end for; is also useful in equipment import and export on the flange for connection between two devices, such as reducer flange. Flange connection or flange joints, is defined by flanges, gaskets and bolts of the three interconnected as a detachable connection seal structure combinations. Pipe flange means conduit means for piping flange, with import and export flange on the device means the equipment. There are holes on the flange bolts so that the two flanges tightly connected. Between the flange sealing gasket. Flange points threaded connection (threaded connection) flanges, welded flanges and the clip flange. Flanges are used in pairs, low-pressure pipe can be used silk flange, the use of four kilograms or more pressure welding flanges. Between the two flange gaskets, then bolted. Different flange thickness at different pressures, they use different bolt. Pumps and valves, and when the pipe connections, these local facilities and equipment, also made the corresponding flange shape, also known as the flange connection. Any use in two planes at the same time the surrounding bolted closed parts, generally known as the “flange”, such as ventilation pipe connections, this type of parts can be called “flange parts.” But this is only a partial connection device, such as flange connections and pumps, on the bad pumps called “flange parts.” Relatively small, such as valves, etc., can be called “flange parts.”

Blind Flanges
Blind flanges are generally used to seal the end of a piping system to prevent flow of liquids or gases. The use of blind flanges allows ease of access to a piping system once it has been closed.Our blind flanges are available with raised or RTJ faces and also with female threads. Blind flanges can be supplied with or without hub as per the customer requirements.

BLIND FLANGES, BL FORGED FLANGES PRODUCTION RANGE
Size: 1/2″ (15 NB) to 48″ (1200NB)
Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Carbon Steel Blind Flanges: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
Stainless Steel Blind Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Blind Flanges: ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Blind Flanges:> Duplex, Super Duplex, Nickel Alloys
Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Value Added Services: CNC Machining, Customised Flanges

Slip-on flanges
Slip-on pipe flange usually slips over the pipe. Slip-on pipe flanges are typically made with an inside diameter of the pipe flange slightly larger than the outside diameter of the pipe. This allows the slip-on flange to slip over the pipe. Slip-on pipe flanges are welded (usually both inside and outside) to provide strength and prevent leakage. Slip-on pipe flanges can sometimes also have a boss/ring or hub, and can be made with a bore to suit either pipe or tube. Ring pipe flanges and hub pipe flanges are both considered slip-on pipe flanges because they both slip over the pipe. Slip-on flanges are generally preferred by users over Slip-on Pipe Flanges, as they are a cheaper option than weld neck flange and the fact that less accuracy is required when cutting pipe to length.

SLIP-ON FLANGE, SO FORGED FLANGES PRODUCTION RANGE
Size: 1/2″ (15 NB) to 48″ (1200NB)
Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Carbon Steel Slip-on Flanges: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
Stainless Steel Slip-on Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Slip-on Flanges: ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Slip-on Flanges: Duplex, Super Duplex, Nickel Alloys
Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Value Added Services: CNC Machining, Customised Flanges

Weld neck pipe flanges:
Weld neck pipe flanges are connected to the pipe by welding the pipe to the neck of the pipe flange, which helps to pass on the stress from the weld neck to the pipe itself. This also reduces high stress concentration at the base of the hub of the weld neck pipe flanges. Weld neck pipe flanges are generally used in high pressure applications, where hot or cold temperatures exist. The inside diameter of a weld neck pipe flange is machined to match the inside diameter of the pipe.

Welding Neck Flange, WN Forged Flanges, Weld Neck Flanges Production Range
Size: 1/2″ (15 NB) to 48″ (1200NB)
Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Carbon Steel Weld Neck Flanges: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
Stainless Steel Weld Neck Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Weld Neck Flanges: ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Weld Neck Flanges: Duplex, Super Duplex, Nickel Alloys
Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Value Added Services: CNC Machining, Customised Flanges