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Tontr Roll Groove ends pipe fitting Reducing Coupling

Sales mode:Wholesale
Material:ductile iron/cast iron/steel
Application:Fire protection
  • S15-88.9


  • S15-88.9

  • Reducer Couplings

  • Groove connection

  • 1"~12"

  • Qingdao, China

  • less pressure

  • 60000 tons/year

  • Regular is red/Can Customize


Tontr Roll Groove ends pipe fitting Reducing Coupling


Reduces pipe size within the coupling

Galvanised finish only

Correct coupling and gasket selection is important to ensurecorrect pipeline performance. lf in double, please contact ouroffice. 


Code:FWG-COU-(size oD)-(size oD)

Size Range:DN50 -300

Working Pressure:300psi

Product Details:

Provides an economical and efficient method of changing direction, adding an outlet, reducing, or capping grooved piping systems.

Available sizes: 2 in.     x 1-1/2 in.     (DN50 x DN40) through 8 in. x 6 in. (DN200 x DN150)

Allows easy transition between two different pipe sizes and replaces two couplings and a reducing fitting.

It is capable of pressures up to 350 psi (2MPa) depending on pipe size and wall thickness

A flexible reducing coupling is not recommended for low-temperature applications

Listings and approvals: UL, FM

Faster and easier than threading, welding or using flanges

Standard grade "E" EPDM gasket, -30° F to 230° F (-34° C to 110° C)


ASTM Specifications: ASTM A-153, ASTM A-183 Grade 2, ASTM A-536 Grade 65-45-12, ASTM A-563M Class 9, ASTM B-633, ASTM F-568M

Application: Fire Protection

End Connections: Grooved x Grooved



1.All products are connected by a trench. Fast installation, safe connection, stronger pressure capacity.

2.The physical factory has its own production workshop, and the production schedule and product quality can be monitored in real time.

3. There are strict quality inspection personnel. From the raw materials into the factory to the finished products are strictly inspected by quality inspection personnel.

4. With internal physical factory, both product quality and product price can be controlled independently.sd


Seamless steel pipe


Gate valve

IMG_6546 拷贝


微信图片_202304131443442 副本Elbow

Company profile

The company is located in a beautiful coastal city of Qingdao, Shandong Province, China. The company was established in 2015, which is not long, but our technicians have been engaged in the pipeline industry for 20 years.

We mainly produce and sell remote liquid supply systems.

A complete remote liquid supply system usually includes steel pipe, coupling, gate valve, elbow, positive tee, filter, safety valve and other products. This paper mainly introduces the normal tee. The so-called positive tee means that the three ports are of the same caliber. Convenient diversion from the main road. The three ports are connected by grooves for easy installation. The pipe fittings are all galvanized inside and outside to enhance the corrosion resistance of the pipe fittings.

Welcome interested friends to visit our company consultation.


Q1:Are you a manufacturer?

A:Yes,we are a manufacturer,and our products have been certified by ISO and our other international management systems.

Q2:What's your delivery time?

A:depending on the order quantity and your location,it will take about 15-30 days.

Q3: What are your main products?
A: Our company mainly R & D and design remote liquid supply system. It mainly includes scheme design, special process steel pipe, steel pipe coupling, gate valve, elbow, tee, sealing rubber ring and other products.

Q4: What size can your company produce?

A: We have all the common sizes on the market. In addition, we can also customize according to your needs, whether its size or material.

Q5: Do you provide samples?
A:Yes, we'd like to offer you samples but you have to cough up dough for shipping.












Field use

TONTR is located in the beautiful coastal city of Qingdao. It is a professional national-level high-tech industry engaged in the design, development, manufacture and sales of high-pressure pipeline systems.

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