pipe nipples and steel sockets | |||
Model No. | Steel Socket | Head Code | Round |
Thread Distribution | Internal Thread | Surface | Galvanized/Black |
Material | Stainless Steel/Carton Steel | Technics | forged |
Application | Water Pipe | Customized | Customized |
Certification | CQC, CCC, PSE, TUV, VDE | Warranty | 3 Years |
Thickness | 0.5mm-10mm. Sch20,Sch30,Sch40,Sch80,Sch120,Sch160 | Standard | BS En 10241,ASTM A120,DIN2982 |
Thread | BSPT, NPT | Lead Time | 30 Days |
Length | From Close to 12" | MQQ | 100 PCS |
Series | Heavy,Standard,Medium,Light | Transport Package | Cartons |
Specification | customized | Trademark | Jizhong |
Origin | Hebei | HS Code | 730799 |
Production Capacity | 40000 Tons Per Year |
Pipe nipples | Steel sockets | |||||
Standard | Size | Pipe | Threads | Size | Pipe | Thrends |
NPT | ASTM A733 | ASTM A53/A106 | ANSI B1.20.1 | ASTM A865 | ASTM A120 | ANSI B1.20.1 |
BSPT | BS EN 10241 | BS 1387/EN1021 | IS0 7/1 | BS EN 10241 | BS1387 | IS0 7/1 |
DIN | DIN 2982 | DIN 2440/2441 | DIN2999 | DIN 2986 | DIN 2448 | DIN2999 |









Note that Full Thread couplings should never be used as fittings in plumbing systems where a watertight seal is critical. However, tapered Full Thread are available for such applications.
Half Thread couplings are half the size and are used to provide threaded outlets on the flat face of metal tanks. The tank is drilled with holes/ports and the coupling halves are welded to the tank centered on the ports. One half of the coupling goes all the way through the threads, but is squared off at one end to aid in welding to the tank.
Half Thread couplings are designed for welding and are therefore only available in black finish. This means they are not available with a galvanized finish, as welding galvanized fittings produces fumes which are harmful to health.

Steel Sockets & Couplings | ||||||||||
Size | In | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1 1/ 4 | 1 1/2 | |
Full | Pipe O.D. | In | 0.563 | 0.719 | 0.875 | 1.063 | 1.313 | 1.576 | 1.90 | 2.200 |
Length | In | 3/4 | 1 1 / 8 | 1 1 / 8 | 1 1 /2 | 1 9/16 | 1 15/16 | 2.00 | 2.000 | |
Half | Pipe O.D. | In | 0.563 | 0.719 | 0.875 | 0.063 | 1 .313 | 1.576 | 1.90 | 2.200 |
Length | In | 0.335 | 0.531 | 0.531 | 0.709 | 0.748 | 0.925 | 0.965 | 0.965 | |
Size | In | 2 | 2 1 /2 | 3 | 3 1 / 2 | 4 | 5 | 6 | ||
Full | Pipe O.D. | In | 2.750 | 3.250 | 4.000 | 4.625 | 5.000 | 6.296 | 7.390 | |
Length | In | 2 1 / 16 | 3 1/ 16 | 3 3/ 16 | 3 5 /16 | 3 7 / 16 | 3 11/16 | 3 15/16 | ||
Half | Pipe O.D. | In | 2.750 | 3.250 | 4.000 | 4.625 | 5.000 | 6.296 | 7.390 | |
Length | In | 1.051 | 1.496 | 1.555 | 1.634 | 1.673 | 1.811 | 1.949 |

Merchant Steel Couplings | ||||
Nominal Size | O.D. | Length | O.D. | Length |
DN | A mm | B mm | C mm | D mm |
6 | 15.0 | 17.0 | 15.0 | 8.0 |
8 | 18.5 | 25.0 | 18.5 | 11.0 |
10 | 21.3 | 26.0 | 21.3 | 12.0 |
15 | 26.6 | 34.0 | 26.6 | 15.0 |
20 | 31.8 | 36.0 | 31.8 | 17.0 |
25 | 39. 5 | 43.0 | 39.5 | 20.0 |
32 | 48.3 | 48.0 | 48.3 | 22.0 |
40 | 54.5 | 48.0 | 54.5 | 22.0 |
50 | 66.2 | 56.0 | 68.0 | 26.0 |
65 | 82.0 | 65.0 | 84.2 | 30.0 |
80 | 95.0 | 71.0 | 98.4 | 34.0 |
100 | 121.4 | 83.0 | 124.0 | 40.0 |
125 | 146.3 | 92.0 | 149.0 | 44.0 |
150 | 173. 3 | 92.0 | 177.0 | 44.0 |

Jizhong provide many type pipe fittings in the piping systems,such as Steel Pipe Fittings, Steel Pipe Nipples, Steel Pipe Couplings&Sockets, Welded Outlets, Casing and Tubing Couplings ,Stainless Steel Pipe Fittings , Stainless Steel Threaded Fittings, Stainless Steel Pipe Nipples,Malleable Iron Pipe Fittings, DIN Standard Malleable Iron Pipe Fittings, British Standard Malleable Iron Pipe Fittings, American Standard Malleable Iron Pipe Fittings,Seamless Pipe Nipples, Steel Pipe Fittings, Stainless Steel Pipe Fittings , Malleable Iron Pipe Fittings, Seamless Pipe Nipples,welcome to send your inquiry
Products are used in fire protection system, water system, HVAC system, plumbing, gas system, irrigation system, etc.
1. What is the minimum quantity of the order?
Answer: The purchase volume of mixed products is 4 tons
2. How long is the delivery time of the order?
Answer: The delivery time for general orders is about 30 days. If the order is urgent and we have stock, around 7 days.
3. What payment methods do you accept?
Answer: We accept payment terms such as T/T, L/C, DP, Western Union, Paypal, etc.
4. Where is your departure port of shipment? Is it possible to deliver to the designated warehouse?
Answer: The port of departure of our goods is generally Tianjin Port or Qingdao Port. We can transport the goods to designated warehouses, such as Yiwu, Guangzhou, etc.
5. What certificates do your products have?
Answer: Our products have FM/UL certificates, and we cooperate with third-party quality inspection certification before the factory, such as SGS,TUV
6.What are the series of your products?
Answer: Our products are divided into heavy series, medium series and light series according to different markets and standards. In order to buy more competitive products for you, please communicate your purchasing needs with the salesperson.
7. Do product packaging cartons and labels support customization?
Answer: Packaging cartons and labels can be customized according to customer requirements.
8.Does the purchased product support customization?
Answer: The product supports customization, but there are purchase quantity requirements and mold costs. For details, please consult the salesperson.
9.What are the packaging methods of the product?
Answer: The packaging of the product includes carton packaging, pallet packaging, wooden box packaging, and woven bag packaging.
