Parker PT-00453 Flareless Bite-type Progressive Ring 15mm

Product Description

The PARKER PT-00453 is a flareless bite-type progressive ring designed for use in tube fitting assemblies that do not require a flared tube end. The ring seats progressively into the tube wall as the fitting is tightened, forming a secure mechanical grip and leak-resistant seal. It is sized for a 15 mm tube outside diameter. This component is a standard consumable in hydraulic, pneumatic, and fluid-transfer line work, and is typically installed by licensed HVAC technicians, plumbers, and industrial pipe fitters working with metric tubing systems.

This progressive ring is used in applications where flareless compression-style connections are specified, including refrigeration lines, hydraulic circuits, and instrument tubing runs in both commercial and industrial settings. The 15 mm OD sizing suits metric tubing commonly found in European-spec equipment and machinery. It is sold in a package quantity of 10 rings, making it practical for service kits or multi-connection jobs.

Key Features

• Flareless design eliminates the need to flare tube ends before assembly
• Progressive bite action creates a secure grip on the tube OD as the nut is torqued
• Sized for 15 mm outside diameter metric tubing
• Sold in a package quantity of 10 for multi-connection serviceability
• Conforms to UNSPSC code 27121700 for fittings and couplings

Compatibility

Designed as an OEM-style replacement or service component for flareless bite-type tube fitting assemblies using 15 mm OD tubing. Specific system and brand compatibility is not stated in available product data; confirm fitting series and material compatibility before installation.

Installation Notes

Installation is performed by qualified technicians working with hydraulic, pneumatic, or refrigeration tubing systems. Depressurize and isolate the line before disassembling any fitting. Follow the fitting manufacturer's prescribed pre-swaging or pre-assembly procedure for bite-type rings to ensure full seating on the tube wall. Refer to applicable codes such as ASME B31.3 or system-specific piping standards for pressure rating and inspection requirements.