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Wholesale Steel Grooved Fittings Pipe Coupling for Fire Fighting

  • medium:Oil Water Gas
  • material:Ductile Iron
  • Surface Treatment:Spray or DIP Paint and Other Corrosion Resistant 
  • Technology:Casting, Forging
  • Certification:FM UL ISO9001
  • Material of Rubber Ring:EPDM/NBR
  • S13-76.1

  • Tongte

  • Steel pipe connector

  • Groove connection

  • 1-24

  • Qingdao, China

  • 1.6MPa, 2.5MPa, 4MPa, 10MPa

  • 60000 tons/year

  • Regular is red/customizable

  • EPDM/Nitrile etc.


Product Name: Wholesale Steel Grooved Fittings Pipe Coupling for Fire Fighting

Product Type : High pressure Coupling

Listings and Approvals : ISO

Sizes : 1 inch to 12 inch (DN25 to DN300)


A proven dependable method of joining pipe and an economical alternative to welding, threading, or using flanges

It is capable of pressures up to 350 psi (24, 1 bar) depending on pipe size and wall thickness when used in fire protection services

Also available with tri-seal Grade "C" EPDM gasket for dry pipe fire protection systems, vacuum systems, and freezer applications

Provides a rigid joint by firmly gripping along the full circumference of the pipe grooves

Standard Grade "A" EPDMA pre-lubricated gasket, -30°F to 150°F (-34°C to 66°C)

For Use in Fire Protection Systems

Installation method

1.First check the end of the steel pipe that needs to be connected together for burrs and defects

2.Next, apply lubricating oil to the lips and outside of the sealing rubber ring

3.Then first put a section of steel pipe into the sealing rubber ring

4.Then put the other end that needs to be connected together into the sealing rubber ring.

5.Put the housing of the coupling on the outside of the sealing rubber ring

6.Finally tighten the bolts and nuts




The reason to choose us

1. Professional techincal team:we have an excellent techincal team,which can be designed according to customers requirements.

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

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

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.

Packing and shipping

The steel pipe can be bagged in a single bag, and the steel belt can be bundled in a fixed number according to the different caliber sizes. Use external packing tape with company logo.

The steel pipe coupling needs to be customized according to the size of the wooden box. It can save space and achieve fixed product transportation.

Gate valve packaging usually uses a special packing bag for gate valve. According to the quantity of different pallet pallet delivery.

Transport mode Select the appropriate transport mode according to the order.





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:Do you provide samples?

A:If you need some samples for testing ,we can make them according to your requirements.Samples will be prepared and sent by express within a week, usually arriving within 4-7days .You need to pay for the sample and sipping fee.

Q4: What are your main products?
A: We specialize in producing a wide range of valves, elbows, flanges, Tee, Cross, gaskets etc.

Q5: 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.


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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