Welwin Pipes & Fittings is a dynamic group, which was established over a decade ago to cater to growing demands of ASTM A105 Coupolets standards in Weloldet, Nippolets, Sweepolets, Latrolets , Sockolets etc in all materials like Stainless Steel , Carbon Steel & High Nickel Alloys. We Manufacture, Export and Supply Pipe Fittings which meets with national and international quality standards and producing base which owns equipments conforming to international technical level and is well equipped with a whole set of advanced plasma refining equipments.
We manufacture all 3 groups of Fittings such as Buttweld (BW) fittings, Socket Weld (SW) fittings & Threaded (THD) Fittings as per ASTM standards & other International standards. We export our high quality ASTM A105 Coupolets to Kuwait, Egypt and Qatar.
Stainless Steel ASTM A105 Coupolets | Carbon Steel ASTM A105 Coupolets | Nickel Alloys ASTM A105 Coupolets
Size : 1/2'' - 24
Type : Weldolet, Sockolet, Nippolet, Threadolet, Latrolet, Flexolet butt-weld, Flexolet Threaded and Sweepolet
MATERIALS :
Stainless Steel Olets – SS Coupolets
ASTM A182 F304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Duplex Stainless Steel Olets - Duplex SS Coupolets
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.
Carbon Steel Olets – CS Coupolets
Standard : ASTM / ASME A/SA 105 / 350 LF 2 / A 516 GR.70 / IS 2062
Nickel Alloy Coupolets :
Standard : ASTM / ASME SB 564 / 160 / 472
Grade : UNS 2200 (NICKEL 200), UNS 4400 (MONEL 400), UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600), UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), UNS 2201 (NICKEL 201), (ALLOY 20 / 20 CB 3)
| 300# Female Threaded Coupolet | |||
| Nominal Outlet Size |
Dimensions | ||
| A | C | F | |
| 1/2 | 15/16 | 0.745 | 1.188 |
| 3/4 | 1 | 0.958 | 1.441 |
| 1 | 1 3/16 | 1.188 | 1.562 |
| 1 1/4 | 1 5/16 | 1.550 | 1.906 |
| 1 1/2 | 1 9/16 | 1.780 | 2.188 |
| 2 | 1 11/16 | 2.260 | 2.750 |
| 2 1/2 | 1 13/16 | 2.890 | 3.386 |
| 3 | 2 1/2 | 3.400 | 4.000 |
| 4 | 3 | 4.380 | 5.000 |
| Interchangeability or Combination of Sizes | ||||||||||
| Coupolet Outlet Size Inches |
Run Sizes | |||||||||
| 1/2 | 1/2 | 3/4 | 1 1/4 -1 | 8-3 | 36-10 | |||||
| 3/4 | 3/4 | 1 | 2 - 1 1/4 | 36-8 | ||||||
| 1 | 1 | 1 1/4 | 2 - 1 1/2 | 8-5 | 36-10 | |||||
| 1 1/4 | 1 1/4 | 1 1/2 | 2 1/2 - 2 | 8-5 | 36-10 | |||||
| 1 1/2 | 1 1/2 | 2 | 2 1/2 | 8-5 | 16-10 | 36-18 | ||||
| 2 | 2 | 2 1/2 | 3 | 4 | 5 | 6 | 8 | 10 | 16-12 | 36-18 |
| 2 1/2 | 2 1/2 | 3 | 3 1/2 | 5 | 6 | 8 | 12-10 | 16-14 | 36-18 | |
| 3 | 3 | 3 1/2 | 4 | 6 | 8 | 10 | 12 | 14 | 18-16 | 36-20 |
| 4 | 5 | 6 | 8 | 14-12 | 16 | 18 | 20 | 24 | 36 | |
Types of ASTM A105 Olets :
Packaging: ASTM A105 Coupolets Flanges is sleeved into plastic bag individually, ten pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.
Prevent any damage.
During transportation items are tagged, packed in plastic bags and closed in carton boxes or seaworthy wooden cases.
plywood case,pallet and according to customer's requirment
Marking: ASTM A105 Coupolets Flanges are marked with alloy name, outside diameter, wall thickness and heat number. Additional information like standard and alloy numbers can be added on request.
Stainless Steel ASTM A105 Coupolets
Carbon Steel ASTM A105 Coupolets
Duplex & Super duplex Steel ASTM A105 Coupolets
Nickel Alloy ASTM A105 Coupolets
Inconel ASTM A105 Coupolets
Incoloy ASTM A105 Coupolets
Incoloy ASTM A105 Coupolets
Incoloy ASTM A105 Coupolets