Cliping Convex Duct
Card convex pipeline

Cliping Convex Duct

Cliping Convex Duct

Summary

Card convex connection definition:

The card convex connection technology adopts Zhengkang's invention patent: "a pipe joint for pipes" (patent number: ZL01 1 05997.4), utility model patent: "a pipe joint for pipes" (ZL2004 2 0020559.2), and utility model patent: "pipe expanding device for pipe connecting pipes" (ZL2004 2 0021648.9). This technology draws lessons from and absorbs the looper flange and Japan flexible connection technology. It is a new type of pipeline connection technology with reliable and no leakage of thin-walled stainless steel pipes.

 

card convex connection principle:

With a special pipe expanding tool at the appropriate position of the thin-walled stainless steel pipe end, the pipe is rolled from inside to outside (radially) to form a flange ring, then the pipe end with ethylene propylene diene monomer (EPDM) rubber sealing ring is inserted into the pipe fitting with socket, the lock nut is tightened, and the EPDM rubber sealing ring is pushed and compressed by the flange ring to play the role of sealing and connection.

 

Salient features of the card-convex connection:

Easy installation

The installation process is simple, similar to galvanized pipe, ordinary workers 5 minutes to learn the simple and quick four-step installation method.

Quick Installation

The convex ring of the processed pipe is concentrated on the fixed site on site. After processing, workers can install it with an ordinary wrench. The installation speed is more than 20% faster than other connection methods and more than 50% faster than welding.

High connection strength

Flange type structure, pipe fittings connection strength is high, in addition to welding connection strength is larger than the mechanical connection. Taking DN15 tube as an example, the pressure resistance test can reach 10MPa, which is more than 2 times of the clamping pressure.

Removable for easy modification and maintenance

The pipe fittings are connected by threads or flanges, the pipes are detachable, and the pipe fittings can be reused, reducing the cost of transformation.

multistage seal

Use 3-stage O-ring seal, multiple protection, no leakage.

Long life

Using food grade EPDM (EPDM) rubber, aging resistance, life of up to 50 years.

Sealing ring for stainless steel pipe and fittings

Using food grade EPDM (ethylene propylene diene monomer) rubber

Standard for execution of clip-convex stainless steel pipes and fittings

 

Convex pipe execution standard ▼

GB/T12771-2019-Steel Welded Stainless Steel Pipe for Fluid Transport
CJ/T151-2016 Thin-walled Stainless Steel Tubes

The implementation standard of card convex pipe fittings ▼

Q/ZZK02-2017 "stainless steel clip male pipe fittings"

Seal ring implementation standard ▼

Q/ZZK02-2017 "stainless steel clip male pipe fittings"

Installation standard

GB/T29038-2012-Walled Stainless Steel Piping-Technical Specification
22S407-2 "thin wall stainless steel water supply pipe installation"
CECS153-2003 "Technical specification for building water supply thin-walled stainless steel pipe engineering"

 

Cam-convex stainless steel pipes and fittings Applicable fields

It is suitable for low-pressure fluid transportation in cold and hot water, direct drinking water, heating, air conditioning, fire fighting, gas and other civil applications. It can also be used for low-pressure fluid transportation in pharmaceutical, beverage, food, chemical and other industries.

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