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Groove Fitting Ductile Iron Rigid Pipe Coupling

  • S11-60.3

  • Tontr

  • S11-60.3

  • Steel pipe connector

  • Groove connection

  • 1"~24"

  • Qingdao, China

  • 1.6MPa, 2.5MPa, 4MPa, 10MPa

  • 60000 tons/year

  • Regular is red/customizable

  • EPDM


Groove Fitting Ductile Iron Rigid Pipe Coupling

Rigid Coupling has a 60 angle pad design which constricts the housing keys into the groove around the circumference to create rigidity.

The housings slide on the angled pads rather than mating squarely.   This sliding adjustment also forces the key section into opposed contact on the inside and outside groove edges create a rigid connection.

The unique “C” shape gasket performs triple sealing functions

With a tested & proven compression set and pocket volumetric, to increase the service life of the coupling.

Certificate: UL Listed / FM Approved

Standard: ANSI / UL 213C

Material: Ductile iron as ASTM A536, 65-45-12

Bolt & Nut: Carbon Steel, meeting A‐449 & A‐183

Gasket: EPDM

Temperature: ≤ 107°C

Working Pressure: 2.5MPa

Surface: Red paint/ Hot-dip galvanized



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

2. Have a dedicated customer service team. Pre-sales customer questions, after-sales problems, we can send people to solve at any time.

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

4.Serve customers attentively.

(1)24-hour specially-assigned personal to solve problems for you.

(2) High production efficiency and punctual delivery.

(3)7*24hours service:have an excellent after-sales service team to ensure that the first time to solve customer after-sales problems.

5. Simple installation, improve work efficiency.Installation steps are as follows

安装 (1)

1. Check the burrs at the end of the steel pipe

安装 (2)

2. Check the burrs at the end of the steel pipe

安装 (3)

3. Seal the trap like a tube end

安装 (4)

4. Seal the trap into the other end of the steel pipe

安装 (5)

5. Clamp into the pipe fitting

安装 (6)

6. Tighten the bolts and nuts diagonally

Company profile

Our company is a national high-tech enterprise specializing in the design,development,manufacturing and sales of high pressure pipeline system.The company has passed the international management system certification.

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.

The annual production of the company is about 15,000 tons. Products are widely used in petrochemical, shipbuilding, coal pipeline, municipal construction and other industries. Our company has obtained the national industrial production license, and can provide design solutions and customized pipeline systems according to different requirements of customers and the use of environment. Our company always put product quality in the first place, product quality zero defect is our company goal.  









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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