What is the purpose of casing spacers?

Casing Spacers are used to center water, sewer, gas and other fluids in casings. Casing insulators are used to support and electrically insulate a cathodically protected pipeline from a casing pipe through which it must pass.

What is a casing spacer?

Casing Spacers center water and sewer pipes in casings with easy installation, are virtually corrosion proof, and provide insulating protection from a possible electrical shorting between the carrier pipe and casing pipe. …

How do you size a casing pipe?

The casing diameter should be sized to provide a minimum of 4 inches (100 mm) between the inside of the casing pipe and the largest outside diameter of the carrier pipe (including pipe bells) to allow for deflection of the casing pipe and installation of casing spacers.

What is spectacle blind?

Spectacle Blinds are simple safety devices that are installed between two pipe flanges. During normal operation, the open end is installed as a spacer to allow uninterrupted flow. This positively isolates the downstream piping and equipment. A Spectacle Blind is generally installed as a permanent fixture.

What are the different types of casing?

The five types of casing string are conductor casing, surface casing, intermediate casing, casing liner, and production casing.

What size is well casing?

A well casing is a steel pipe that is used to seal and support the sides of a drilled water well. The diameter of a residential water well casing is 4″, 5″, 6″ or less-often, 8″ across.

What is the difference between spacer and spectacle blind?

Spades and Ring Spacers are basically the same as Spectacle Blinds, except that both are not attached to each other. Spades and Spacers be applied in systems where maintenance is often not necessary, or in applications with large pipe sizes.

What is spade and spacer?

The Spade or Spacer is fitted in the line between two flanges and is bolted in place. The Spacer is used when the line is required open and the Paddle Blind or Spade is installed when the line is required blocked or closed. The removed bolts are then installed and tightened.

What is the difference between casing and a liner?

Casing is very necessary for smooth drilling operations in deep and ERD wells so that hole collapsing may be got rid of. Liner is a string of casing which does not extend to the surface but is hung from inside the previous casing string and is cemented in place.

What is well casing pipe?

Casing provides support for the wall of the well so that loose rock fragments or unconsolidated sand and gravel through which the well has penetrated do not collapse into the well shaft. The casing protects the electrical wires, pull cable and water tubing/piping that are connected to the submersible pump.

Can PVC be used for well casing?

PVC Well Casing is primarily used to line wells for drinking water. PVC Well Casing is a robust piping material designed and tested to withstand the collapsing pressure associated with underground well installation.

How deep should well casing be?

Most states require a minimum depth of 20 feet to the top of the casing and often require the casing to reach bedrock. Other regulations may address issues such as sealing, grouting and securing the well-cap. A certified drilling contractor will always give you the most accurate estimate possible before drilling.

How many casing spacers do I need for PVC pipe?

Recommended spacing for PVC type pipe (Bell & Spigot) is 2 casing spacers per joint. CCI reserves the right to recommend spacing according to application. Heavy duty two-piece #304 Stainless Steel or Carbon Steel Casing Spacers with durable glass filled polymer runners.

What kind of casing do you need for multiple pipes?

Casing spacers multi pipes steel units configured for pipe clusters that carry several pipes through the same casing. There are many combinations of multiple pipe casing spacers / isolation units available. Casing spacers WA-MP steel models, may be configured to carry two or several carrier pipes at a time through casing.

How often do you need a spacer for piping?

We recommend installation of casing spacers every 6 to 8 feet. Heavy duty two-piece stainless steel or carbon steel bands by APS serve virtually every piping application and should be utilized inside casing that is 2 or 3 pipe sizes larger than the carrier pipe.