Manufacturer of Stainless Steel Coupolet, Duplex Steel Coupolet, Alloy Steel Coupolet, Carbon Steel Coupolet, Low Temperature Carbon Steel Coupolet, Nickel Alloy Coupolet, Copper Alloy Coupolet
Grades: Weldolet  | Sockolet  | Elbolet  | Thredolet  |  Nipolet  | Latrolet | Sweepolet  | Flexolet Brazolet Coupolet

Coupolet fittings are designed for use in fire protection sprinkler systems and other low pressure piping applications. manufactured with NPT female threads for 300# service and are UL Listed and F.M. approved.

 

Dimensions of Coupolet

 


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  

 

 

Coupolet 
Size : 1/2"NB TO 24"NB IN
Class : 3000 LBS, 6000 LBS, 9000 LBS & Required Schedule
Type : Socket Weld (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT  
 
MATERIALS :

Stainless Steel Coupolet  – SS Coupolet    
ASTM A182 F304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L 

Duplex Steel Coupolet  
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.

Alloy Steel Coupolet – AS Coupolet   
ASTM / ASME A/SA 182  F1/F5/F9/F11/F22/F91

Carbon Steel Coupolet – CS Coupolet  
ASTMA 105/A694/ Gr. F42/46/52/56/60/65/70

Low Temperature Carbon Steel Coupolet – LTCS Coupolet   
A350 LF3/A350 LF2

Nickel Alloy Coupolet :
Standard: ASTM / ASME SB 564 / 160 / 472.
UNS 10276 (HASTELLOY C 276 Coupolet)
UNS 2200 (NICKEL 200 Coupolet)
UNS 2201 (NICKEL 201 Coupolet), 
UNS 4400 (MONEL 400 Coupolet), 
UNS 8020 (ALLOY 20 Coupolet)
UNS 8825 INCONEL 825 Coupolet), 
UNS 6600 (INCONEL 600 Coupolet) , 
UNS 6601 (INCONEL 601 Coupolet), 
UNS 6625 (INCONEL 625 Coupolet),

Copper Alloy Coupolet     
ASTM / ASME SB 61 / 62 / 151 / 152.
C 70600 (CU -NI- 90/10) – Cupro Nickel Coupolet     
C 71500 (CU -NI- 70/30) – Copper Nickel Coupolet 
UNS NO. C 92200, UNS NO. C 83600, UNS NO.  UNS NO C 10100,
C 10200, C 10300, C 10800, C 12000, C 12200
VALUE ADDED SERVICES
Hot Dip Galvanizing  
Electro polish
TEST CERTIFICATE 
Mill Test Certificate as per EN 10204 / 3.1  

 

 

Tel: 022 2389 3044 / 022 6743 8472

Email: sales@radicalsteel.com