Welding Neck Flanges

Short Description:

The Welding neck flanges is normally referred to as the high hub flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange.

Slip-On Pipe Flanges. As made obvious by their name, these pipe flanges slip over the pipe. They’re manufactured with an inside diameter that is slightly bigger than the pipe’s outside diameter. These attachments are connected to the pipe via fillet weld at the top and bottom of the flange.

Product Detail

Product Tags

Various process pipeline flanges API6A,ASME B16.5

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Welding Neck Flanges

product description：

Standards, Dimensions & Weight of WN flange

The welding neck flange is the best designed butt-welded flange of those currently available becuase of its inherent structural value.

Specifications of Welding Neck Flanges:

Size: 1/2” to 60”, DN 12mm to DN 1500mm

Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
Facing: RF / RTJ

Material of Welding Neck Flanges:

Cabon steel: A105, A350 LF2, C22.8, S355JR
Stainless steel: A182 F304/F304L/F316/F316L/F321
Alloy steel: F11, F12
Packing: plywood case and plywood pallet

Temperature range:

Viton: -20°C to 200°C
Silicone: -50°C to 230°C
Buna: -30°C to 110°C
EVAC metal seal: -270°C to 150°C
Tube OD sizes: 3/8 to 2 inches

Materials:

Flange: 304 or 316L stainless steel
O-rings: Viton, Buna, & silicone
Fasteners: Wingnut, SureSeal, bulkhead & EVAC clamps

Vacuum range:
Elastomer seal: >=1 x 10^-8 Torr - High vacuum
EVAC metal seal: >=1 x 10^-11 Torr - UHV

Slip-On Flanges

product description：

Standards, Dimensions & Weight of Slip on flanges：

1. Slip On flange 2. Filled weld outside 3. Filled weld inside 4. Pipe

Material of Slip-on flange:

Slip on pipe flanges in stock include AWWA slip on pipe flanges, ANSI slip on pipe flanges, Pressure Vessel slip on pipe flanges and slip on pipe flanges that match the OD and drilling of ASME flanges.

Cabon steel: A105, A350 LF2
Stainless steel: A182 F304/F304L/F316/F316L/F321
Alloy steel: F11, F12

Packing:

plywood case and plywood pallet

Clad Flange

product description：

Various process pipeline flanges API6A,ASME B16.5Roughing machining of forging before surfacing, 100% PT inspection after surfacing, hardness inspection of surfacing layer, finishing machining of finished products after surfacing.

Flanges base material:

ASTM A105,ASTM A350 LF1, LF2 CL1/CL2,LF3 CL1/CL2

ASTM A694 F42,F52,F60,F70;

ASTM A182 F304/304L,F316/316L;

API 45K,60K,75K,AISI 4130(M),4140,4340,8630(M);

The Inner diameter of cald flange is 38mm-1800mm.