GRD-PZA “Set-On” bag Weight|GRD-PZD set-on bag weights|GRD Casing End Seals For Carrier Pipe End Seal|Langfang Great Petroleum & Gas Equipment Co., LTD

GRD End Casing Seals

For Carrier Pipe End Seal

A safe and economic system for sealing the annular space between carrier pipe and casing


GRD-A	GRD-B

For safety reasons carrier pipes are installed inside casing sleeves wherever pipes are being laid under roads, railways or rivers. It is important that the annular space is kept dry in order to reduce the risk of corrosion.

Our various types of casing end seals constitute a safe, clean and cost effective solution for new installation or retrofitting.

Casing end seals are installed easily and rapidly. They are pulled over the outer edge of the casing and the carrier pipe, and are secured in place by stainless steel straps and clamps.

All casing end seals are made of materials that are highly resistant to ageing and have excellent mechanical strength. We are constantly adding new types to our large range of casing end seals. Should the types we offer not be suitable for your application, please do not hesitate to contact us. We will then make your special „problem“ a part of our development work.

Casing end seals, however, are not suitable in cases where water exerts pressure. We recommend to use LINK-SEALS instead.

Every casing end seal is supplied in a ready-to-install condition including suitable fastening straps and clamps.

Type STM

GRD CASING END SEALS

AVAILABLE TYPE

TYPE GRD-A

GRD-A seals are only used for new installations. Their special folded design compensates the eccentric position of pipes relative to each other.Special types for pipe eccentricities of > 80 mm are available at an extra charge.

GRD-A seals are injection moulded parts made of EPDM (ethylene-propylene diene rubber). Our product range is continuously expanded. For available sizes and types please refer to the current price list. For sizes not available in GRD-A types we recommend to use other casing end seal.

TYPE GRD-B

For new installation

GRD-B are used to prevent the ingress of moisture and soil into the annular space between carrier pipe and casing sleeves.

Because of the flexibility of the material the end seals are suitable for casing pipes up to 10% Bigger diameters and as a consequence of the cone shape they are suitable for every diameter o carrier pipes.

GRD Casing End Seals

Order Form

GRD Casing End Seals

Installation Instruction

CASING END SEAL GRD-A
1. Pull small end of the seal over the carrier pipe.
2. Pull the large end of the seal over the casing as far as possible.
3. Place the stainless steel straps around the large and small ends Pull the free end of the strap at least 50 mm through the square opening in the clamp and then fold it. The folded end must be placed under the fastening strap. Tighten the clamp as far as possible using a screw driver.
4. The moulded form is indicating the installation situation. Care should be taken when backfiling as the seals should be remain firm on the pipe. Also ensure that no sharp rocks or stones can punchure the rubber.

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