Pipe join (インチ)t solution

Core challenges and prelimin (インチ)ary preparation

前 connectin (インチ)g unthreaded galvanized pipes and PVC pipes, the following challenges need to be clarified:

1. Material differences: PVC and metal have different thermal expansion coefficients, and temperature changes may cause the in (インチ)terface to loosen.
2. Galvanic corrosion: Metal-plastic contact may accelerate the corrosion of the galvanized layer (dielectric isolation is required).
3. サイズ adaptation: The outer diameter (OD) of galvanized pipes and PVC pipes is in (インチ)consistent, and a matching transition joint is required.

Preparation:

Tool list: pipe cutter, deburrin (インチ)g tool, tape measure, wrench, PVC glue, rubber coupler or compression joint.

Material in (インチ)spection: Confirm that there is no severe rust on the surface of the galvanized pipe and no cracks on the PVC pipe.

Detailed explanation of connection methods

Rubber coupler (Fernco Couplin (インチ)g) – suitable for drainage and low-pressure systems

Applicable scenarios: non-pressure scenarios such as basement drain (インチ)age and irrigation systems.

Advantages: いいえ threads required, fast in (インチ)stallation, low cost.

Steps:

Cuttin (インチ)g and cleaning:

1. Use a rotary cutter to cut the galvanized pipe and PVC pipe to a flush position, ensurin (インチ)g that the port is free of burrs.
2. If the galvanized pipe is rusty, use sandpaper to polish it until it is smooth.

Install the coupler:

1. Loosen the stain (インチ)less steel clamp of the rubber coupler and put it on one end of the galvanized pipe.
2. Insert the PVC pipe in (インチ)to the other end of the coupler and adjust the alignment.

Fix the clamp:

Use a screwdriver to tighten the clamp evenly to avoID uneven sealin (インチ)g caused by one-sided force.

いいえte:

1. Choose a coupler that fits the pipe diameter (such as a 2-in (インチ)ch pipe requires a 2-inch coupler).
2. AvoID usin (インチ)g it in high temperature or high pressure environments, as rubber is prone to aging.

Compression Fittin (インチ)g – 中 and low pressure water supply system

Applicable scenarios: household water supply pipes, small pressurized irrigation systems.

Advantages: Strong sealin (インチ)g and can withstand a certain water pressure.

Steps:

選択 adapter:

Purchase a compression join (インチ)t for galvanized pipe to PVC (usually made of brass, with a metal compression ring on one end and a PVC socket on the other end).

Install the metal end:

Put the metal end of the compression join (インチ)t on the galvanized pipe, tighten the nut, and use the compression ring to squeeze the pipe to achieve a seal.

Connect the PVC end:

Apply special glue to the PVC pipe mouth, in (インチ)sert the joint socket, and keep it for 30 seconds to cure.

いいえtes:

1. The outer diameter of the galvanized pipe must be strictly matched with the in (インチ)ner diameter of the compression ring. An error of more than 1mm may cause leakage.
2. 前 the pressure test, it needs to stand for 2 hours to ensure that the glue is completely cured.

Flange Join (インチ)t – Industrial or large diameter system

Applicable scenarios: factory pipelin (インチ)es, large drainage systems (pipe diameter ≥ 4 inches).

Advantages: strong pressure bearin (インチ)g capacity, easy to disassemble and maintain.

Steps:

Weldin (インチ)g flange:

1. Weld a steel flange on the end of the galvanized pipe (rust-proof treatment is required).
2. Glue the PVC flange with bolt holes to the end of the PVC pipe.

位置合わせ and sealin (インチ)g:

Place a rubber gasket between the two flanges and tighten them diagonally with bolts to ensure uniform pressure.

いいえtes:

1. Weldin (インチ)g must be performed by professionals to avoID the release of toxic gases from the high temperature of the galvanized layer.
2. Bolts need to be checked regularly to prevent rust and loosenin (インチ)g.

Transition Cement – temporary or low-cost solution

Applicable scenarios: temporary repairs, non-drin (インチ)king water systems (such as rainwater pipes).

Advantages: いいえ additional join (インチ)ts are required, and the cost is extremely low.

Steps:

処理中 the galvanized pipe end:

Grin (インチ)d the galvanized pipe end to increase the adhesion of the glue.

Apply transition glue:

Use PVC-Metal special glue (such as Oatey® Heavy Duty) to evenly apply it to the connection between the galvanized pipe and the PVC pipe.

Fixin (インチ)g and curing:

Press the two tightly and fix them with a clamp for 24 hours.

いいえtes:

1. オンly suitable for low-pressure scenarios, long-term use is prone to failure.
2. Glue may contain (インチ) harmful substances and is prohibited for drinking water pipes.

リスト of tools and materials

Summary

The connection between non-threaded galvanized pipe and PVC pipe needs to be flexibly selected accordin (インチ)g to the specific scenario:

1. Drain (インチ)age/low-pressure system: Rubber coupler is preferred, which is low-cost and easy to install.
2. Water supply/medium-pressure system: Compression join (インチ)t or flange is more reliable.
3. Temporary repair: Transition bondin (インチ)g can be used as an emergency solution.