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Grooved Concentric fitting 8in Reducer pipe coupling FM

Sales mode:Wholesale
Material:ductile iron/cast iron/steel
Application:Fire protection
  • S15-219


  • S15-219

  • Reducer Couplings

  • Groove connection

  • 1"~12"

  • Qingdao, China

  • less pressure

  • 60000 tons/year

  • Regular is red/Can Customize


Grooved Concentric fitting 8in Reducer pipe coupling  FMProduct Introduction

Ductile iron (ASTM A536)

Pressure: 300 psi water working pressure

Testing: In accordance with ANSI / A21.10 standards where applicable.

Approvals: Underwriters Laboratories listed and Factory Mutual approved.

Standards: ANSI // A21.10 where applicable.

Coating: Seal coated (asphaltic material) inside and out, NSF61 approved

Coating options: epoxy, paint, dacromet, hot-dip galvanized.


• Quick to Assemble

• Easy to Re-Route Systems

Grooved Fitting Do Not Require:

• Welding

• Flanging

• Threading


Material:Ductile Iron

Surface Finish: Electrostatic Spray, Hot Dipping, Dipping, Dacromet

Technics: Casting

Connection:Grooved Connection



1.The single groove coupling is the most basic product of the company. Mature technology and product quality can fully meet the use of pressure.

2.Safety performance: Groove connection mode, automatic precision casting or precision forging forming, high dimensional accuracy, excellent physical properties, safer use.

3.Weight reduction: The same 89 mm connector can reduce the weight by 50% compared to the flange connection.

4. Reasonable price:Have their own factory and production line,offering preferential prices.Easy to realize large quantities of goods.to provide you with.


Company profile

Qingdao Tontr Pipeline System Co., Ltd. is a company integrating design, development, production and sales. The factory covers an area of 10,000 square meters and has more than 100 employees. With the support of new and old customers, our product range has expanded to more application environments. All products are produced in accordance with GD, ASTM and other standards and specifications.

Since its establishment, the average number of complete long-distance liquid supply orders per year is about 60. The whole set of remote liquid supply project includes a certain length of steel pipe, steel pipe coupling, control gate valve, diverter, elbow, filter, accumulator and other products. The length is generally 1000 to 2000 meters most common. Among them, our company has done the longest long-distance liquid supply project for coal mines in China with a length of 6000 meters. This project was independently designed, developed and produced by our company. Up to now, it has been in good condition without any problems.

Welcome interested friends to visit our company consultation




1. What products does the company deal in?

The company mainly develops and produces pipeline system. Including steel pipe, coupling, elbow, gate valve, tee and other pipe accessories.

2. Is the company a trader?

We are not a trader, we are a physical factory with a cadaver production workshop.

3. Can I visit the factory?

We very welcome the majority of friends to visit our company, physical products are more convincing.

4. Can you send samples?

We can send the sample free of charge according to your request, but you need to pay the freight.

5. How long is the production cycle?

It generally takes 7-15 days, and the specific production cycle needs to be determined according to the order quantity and distance.

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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