ASME B16.47 Series A MSS SP44 Flanges
Standard:ASME B16.47 SER.A(MSS SP44)
Flange type: welding neck,blind
Pressure class:75LB;150LB;300LB;400LB;600LB;900LB.
Size: 12" to 60"
Material: Carbon steel ASTM A105/A105N;A694 F42-F70;A350 LF1/LF2; Stainless steel:ASTM A182 f304/304L; F316/316L,F321
Application:
chemical industry, petroleum industry, construction industry, and so on.
Types' Specification
Welding neck
1, Preferred for high-pressure, subzero or elevated temperature
2, Hub is tapered and bored to match pipe's inside diameter so flow is not restricted, preventing turbulence and reducing erosion
3, Easily radiographed and provides excellent stress distribution
Slip-on
1, Not normally used in high-stress applications due to low hub and weld attachment
2, Silps over outside of pipe
3, Inside of flange welded at hub and end of pipe
Lap joint
1, Used where bolt alignment or access for cleaning is required
2, Similar to slip-on flange when used with lap joint stub end
3, Radius at intersection of flange face and bore to match lap joint stub end
Threaded
1, Used where welding would would be hazardous
2, Designed for low-pressure and non-cyclic applications
3, Bore is threaded to match pipe thread
4, Tapered to seal pipe and flanges
Socket welding
1, For small-diameter chemical processes, hydraulic and stream distribution lines
2, Similar to slip-on flange
3, Counter bore matches pipe bore, allowing unrestricted flow
4, Counter bore from hub side fits pipe's outer diameter - can insert pipe in socket with fillet weld at hub
Blind
1, Used to close ends of piping
2, Has no bore
3, Permits access to sealed lines
Other flanges
Orifice, Expander, Reducing, Lightweight, Studding Outlets, Long Weld Necks,Metric, Navy Drawings, Customer Drawings
PRODUCT SHOW
PACKING AND SHIPPING:
RFQ
1.Q:What are your major products?
A:We mainly dealing with ERW black pipes, steel pipes,pipe fittings, grooved fittings.
2..Q:Can I get some samples?
A:We can offer the samples free but you need paid the freight cost by yourself.
3.Q: How About the quality?
A: We support third party inspection, like BV,SGS etc.
4.Q :What size you can provide ?
A:About Wall Thickness: we can provide from 1.5mm to 10mm ,
About Outer Diameter: we can provide from 1/8'' to 6''.
5.Q:What kind of payment is accepted?
A:T/T , L/C etc
6.Q:How about the delivery time?
A: New production:Need about 15-40 days after receiving your down payment or L/C
Stock: After your down payment ,we will deliver within about 7days.
Audited Supplier 
Audited Supplier 
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