HDPE Waterstop Gaskets

HDPE Waterstop is a rubber ring which is compressed around the pipe circumference using stainless steel clamps, preventing infiltration and exfiltration between the HDPE Waterstop and the pipe. It is then either grouted into an existing structure, or has a new structure poured around it.

Categories: HDPE & Grouting Ring Gaskets, HDPE Plastic Pipe Gaskets

General Details
Specification

Document Downloads

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How It Works

Stainless steel clamps secure the connector to the pipe.
The connector is placed to follow the arc of the manhole wall and the stainless steel clamp is placed straight across the confinement area.
The pipe is placed in position and grouted in place using non-shrink patching compound OR
The pipe is placed in position in the formwork and the structure is poured around it.
After the mortar or concrete has set, the structure can be backfilled.

Why It's Better

The best alternative to solely using mortar joint compound.
Adaptable to a variety of field and installation conditions.
Can be installed with existing, new or poured-in-place structures.
Nearly unlimited possibilities for pipe size, style or type.

Where To Use

Manholes
Wet wells
Square pump and lift stations
Stormwater structures
On-site treatment structures
Junction chambers
Grease interceptors

Please Note

For a Nitrile oil and gas resistance waterstop please refer to our WS-30 Waterstop Rings or contact our customer service department or territory manager.

Meets or Exceeds

This manhole connector meets or exceeds the material physical property requirements only:

ASTM C923: Standard Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures, Pipes, and Laterals
ASTM C1478 Standard Specification for Storm Drain Resilient Connectors Between Reinforced Concrete Storm Sewer Structures, Pipes and Laterals
ASTM F-2510: Standard Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures and Corrugated High Density Polyethylene Drainage Pipes

TYPICAL MATERIAL PHYSICAL PROPERTY TEST RESULTS for WS WATERSTOP (as in ASTM C 923 and C 1478)
Test	ASTM Test Method	Test Requirements	Typical Result
CHEMICAL RESISTANCE; 1N SULFURIC ACID and 1N HYDROCHLORIC ACID	D 534, AT 22ºC FOR 48 HRS	NO WEIGHT LOSS NO WEIGHT LOSS	NO WEIGHT LOSS NO WEIGHT LOSS
TENSILE STRENGTH	D 412	1200 PSI, MIN.	1450 PSI
ELONGATION AT BREAK	D 412	350%, MIN.	540%
HARDNESS	D 2240 (SHORE A DUROMETER)	±5 FROM THE MANUFACTURER’S SPECIFIED HARDNESS	<2
ACCELERATED OVEN-AGING	D 573, 70± 1ºC FOR 7 DAYS	DECREASE OF 15%, MAX. OF ORIGINAL TENSILE STRENGTH, DECREASE OF 20%, MAX. OF ELONGATION	-13% TENSILE CHANGE, -14% ELONGATION CHANGE
COMPRESSION TEST	D 395, METHOD B, AT 70ºC FOR 22 HRS	DECREASE OF 25%, MAX. OF ORIGINAL DEFLECTIO	13%
WATER ABSORPTION	D 471 IMMERSE 0.75 BY 2-IN.SPECIMEN IN DISTILLED WATER AT 70ºC FOR 48 hrs	INCREASE OF 10%, MAX. OR ORIGINAL BY WEIGHT	3.50%
OZONE RESISTANCE	D 1171	RATING 0	PASS
LOW-TEMP, BRITTLE POINT	D 746	NO FRACTURE AT -40ºC	PASS
TEAR RESISTANCE	D 624, METHOD B	200 LBF/IN. (MIN.)	215 LBF/IN.

A rubber waterstop shall be employed in the connection of sanitary sewer or stormwater pipes to precast concrete or poured-in-place structures. The waterstop shall be HDPE WATERSTOP as manufactured by Press-Seal Corporation, Fort Wayne, Indiana, or approved equal. The waterstop shall be the sole element relied on to assure the seal of the pipe to the structure. The waterstop shall consist of a rubber gasket and two external take-up clamps.

The rubber gasket element shall be constructed solely of synthetic or natural rubber, and shall meet or exceed the physical property requirements of ASTM C-923, ASTM C 1478, and ASTM F 2510. Key lock and water stop shall extend into the concrete a minimum of 1.5-inches (38mm) to provide an adequate anchorage and watertight seal through the cast-in-place or grouted annular space. Nonshrink grout shall be placed around the entire waterstop and maintain a minimum thickness of 2-inches (50 mm) between the rubber gasket and structure opening to permit proper consolidation around the gasket.

The external take-up clamps shall be constructed of Series 300 non-magnetic stainless steel and shall utilize no welds in their construction. The clamps shall be installed by torquing the adjusting screw using a torque-setting wrench available from the connector manufacturer.

Selection of the proper size waterstop for the structure and pipe requirements shall be in strict conformance with the recommendations of the connector manufacturer. Testing of completed field joints, if required, shall be conducted in strict conformance with the requirements of the connector manufacturer.

The installed waterstop, pipe, and structure shall conform with the requirements of ASTM D 2321 paragraph 7.10 for Manole Connections.