• PSX: Nylo Drive profile
  • Nylo Drive in concrete manhole
  • Nylo drive band
  • Nylo drive mechanism

PSX: Nylo Drive

The PSX: Nylo Drive is a high-performance flexible pipe-to-manhole connector that offers easy installation and long-term performance in one convenient product.

  • Used in wastewater and stormwater systems
  • Meets or exceeds ASTM C 923, ASTM C 1619 Class D (Material Spec), ASTM C 1244, ASTM C 1478, ASTM F 2510


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Whether you core or cast your holes, PSX: Nylo Drive fits right into your production methods, ready to seal your toughest applications every time.

How It Works

  • The connector fits into a cast or cored hole.
  • A power sleeve made from reinforced nylon polymer with stainless steel threaded inserts embedded in the expansion mechanism expands with a certified installation wrench.
  • Take-up clamps made from series 304 stainless steel with quick adjusting screws secure the connector to the pipe.

Why It's Better

  • Safely install from outside of the manhole preventing falls from crawling down into structures.
  • Expansion mechanism components are made entirely of stainless steel threads.
  • Precision molding provides accurate compensation for hole size variations.
  • Additional torque and multiple adjusters on larger diameters.
  • Contractor can save time and money by backfilling immediately.

Where To Use

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

Meets or Exceeds

  • ASTM C 923 – Standard Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures, Pipes, and Laterals
  • ASTM C 1244 Standard Test Method for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) Test
  • ASTM C 1478 – 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

Best Practices

  1. Vacuum testing shall be conducted in strict conformance with ASTM C-1244, prior to backfill.
  2. Pipe Stubs must be restrained from movement per ASTM C-923.
  3. Tightening of the external stainless steel take-up clamps should be done by using a torque-setting wrench available from Press-Seal Gasket Corp.

Note: Oil resistant Nitrile rubber is available in PSX: Direct Drive.

Pipe-to-Manhole and Structure Connector Specification for Sanitary and Storm Sewer Applications:

All pipe-to-manhole and structure connections shall meet and or exceed ASTM C 923, Standard Specification for Resilient Connectors Between Reinforced Concrete Manholes, Structures, Pipes and laterals.

All mechanical devices, including castings, bolt assemblies, adjusters shall use non-magnetic 300 series stainless steel with no welds or rivets in its assemblies.

If thermal plastic internal expansion rings are used, they must be heavy duty automotive grade material molded in one piece with an expansion installation mechanism made of a stainless steel threaded insert (not steel to plastic threads) and embedded as part of the expansion mechanism. Multiple plastic parts as part of the expansion mechanism are not allowed.

The installation of the connector shall be accomplished at one time and shall require no additional adjustments or installation at a later time to ensure a watertight seal.

Take up clamps shall use non-magnetic 304 series stainless steel and be installed in the field using a T-Handle Torque wrench set to 60 inch-pounds and installation shall follow manufacturer’s instructions.

The connector shall be PSX: Direct Drive and PSX: Nylo Drive as manufactured by Press-Seal Corporation of Fort Wayne, IN or approved equal.

  • Prepare the hole to receive the gasket.
    1. Clean the hole of any debris or loose dirt
    2. Examine the hole for any imperfections (bug holes) and wire ends in the gasket bearing surface
    3. Patch any voids (bug holes) with slurry
    4. Remove any wire protruding up into the hole and patch with slurry if needed
  • Select the correct Nylo Drive™ wrench. The wrenches and the adjusters are sized so that only the correct wrench can be used with each size adjuster, and will provide the correct torque. DO NOT USE ANY OTHER SIZE OR TYPE OF WRENCH TO INSTALL NYLO DRIVE™
  • Place the Nylo Drive™ connector in the hole with the adjuster mechanism in position so that it will be at the top of the hole (9 to 3 o’clock) in the final installed position of the manhole. Align the connector so that it is square to the hole. Check to make sure the black internal power sleeve is fully within the confinement space
  • Place the wrench on the adjuster nut so that the arm of the wrench is on the installer’s left side. This will ensure that the proper orientation is maintained
  • Begin to tighten the Nylo Drive™ Connector by pulling the wrench handle toward the outside of the manhole. The wrench will ratchet back easily at the end of the stroke
  • Continue tightening until proper torque is reached. The wrench will signal this by “breaking” slightly. Re-torque is not necessary prior to shipping with the Nylo Drive™


A watertight flexible boot connection shall be used in the connection of all sanitary sewer and/or stormwater pipes to precast manholes or other structures. The flexible connector shall meet or exceed all the requirements of ASTM C-923. The connector shall be NYLO DRIVE™ and/or PSX: DIRECT DRIVE as manufactured by Press-Seal Corporation Ft. Wayne, IN, or approved equal.