Grooved pipe couplings are mechanical connectors used to join pipes in a variety of applications, providing a flexible and efficient method for assembling and disassembling piping systems. These couplings usually consist of two housings with washers between them and secured by bolts or nuts.It is used for grooved pipe connections. At the joint, the adjacent pipe ends are not allowed to have relative angular displacement and corresponding axial rotation. The two butt joints of this product are inclined grooved pipe joints.
Standards related to grooved pipe joints generally address design, dimensions, materials, and testing requirements. Some common standards for grooved pipe couplings include:
ASTM A536: This standard covers ductile iron castings for a variety of applications, including grooved pipe joints.
ASTM A795: This standard specifies black and hot-dip galvanized (galvanized) welded and seamless steel pipe for fire protection applications and may involve the use of grooved joints.
UL 213: Underwriters Laboratories (UL) Standard for Grooved Mechanical Joints and Fittings for Fire Service.
FM (Factory Mutual) Certification: FM Global has specific standards for grooved pipe couplings and related components used in fire protection systems.
Nominal Size
mm/in |
Pipe O.D
mm |
Working
Pressure
PSI/Mpa |
Dimensions mm |
Bolt Size |
Certificate |
| L |
H |
W |
NO.-Size
mm |
| 25/1 |
33.7 |
300/2.07 |
97 |
58 |
45.5 |
M10x55 |
FMUL |
| 32/114 |
42.4 |
300/2.07 |
104 |
66 |
45.5 |
M10x55 |
FMUL |
| 40/112 |
48.3 |
300/2.07 |
114 |
72 |
45.5 |
M10x55 |
FMUL |
| 50/2 |
60.3 |
300/2.07 |
128 |
85 |
45.5 |
M10x55 |
FM UL |
| 65/212 |
73.0 |
300/2.07 |
137 |
94 |
45.5 |
M10x55 |
FM UL |
| 65/212 |
76.1 |
300/2.07 |
142 |
98 |
45.5 |
M10x55 |
FM I |
| 80/3 |
88.9 |
300/2.07 |
164 |
112 |
46 |
M12x65 |
FM UL |
| 100/4 |
108.0 |
300/2.07 |
187 |
134 |
50 |
M12x65 |
FM UL |
| 100/4 |
114.3 |
300/2.07 |
190 |
138 |
50 |
M12x65 |
FM UL |
| 125/5 |
133.0 |
300/2.07 |
212 |
160 |
50 |
M12x75 |
FM UL |
| 125/5 |
139.7 |
300/2.07 |
223 |
168 |
50 |
M12x75 |
FM UL |
| 125/5 |
141.3 |
300/2.07 |
226 |
170 |
50 |
M12x75 |
FM UL |
| 150/6 |
159.0 |
300/2.07 |
244 |
188 |
50 |
M12x75 |
FM UL |
| 150/6 |
165.1 |
300/2.07 |
247 |
194 |
50 |
M12x75 |
FM UL |
| 150/6 |
168.3 |
300/2.07 |
250 |
196 |
50 |
M12x75 |
FM UL |
| 200/8 |
219.1 |
300/2.07 |
320 |
254 |
60 |
M16x90 |
FMUL |
| 250/10 |
273.0 |
300/2.07 |
408 |
316 |
65 |
M20x120 |
FM UL |
| 300/12 |
323.9 |
300/2.07 |
460 |
372 |
65 |
M22x140 |
FM UL |
what is the rigid and flexible Coupling difference?
Coupling play an important role in connecting pipe segments to prevent leaks caused by damaged or damaged joints while maintaining the integrity of the pipe in the process. It is a very suitable fitting for the pipe and pipe industry. Most pipe installations require multiple pipe sections to be joined together or cut to facilitate changing direction and traversing obstacles. A fitting is a concise pipe or pipe. It has a socket or female thread at one or both ends. Fitting allows two pipes or pipes of the same or different sizes to be joined together to form a long pipe.
Flexible coupling
Flexible couplings are designed to transmit torque while allowing some radial, axial and angular misalignment. They can accommodate angular misalignment of up to a few degrees and some parallel misalignment. Elastic couplings allow for some angular misalignment and axial movement, meaning they can be used to create smooth bends and absorb thermal expansion contractions in piping systems. In some cases, the use of elastic couplings can even exclude conventional expansion joints, loops and other expansion devices from the system entirely. When assembling a stretch rubber gasket, the gasket is slightly smaller than the pipe diameter at both pipe ends and produces the first seal. The two halves of the coupling are then placed around the washers that adapt to them. The coupling halves are bolted together to further improve the seal.
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 TT, 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.
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