R W Lyall 1453-91-4614-25 Anodeless Meter Riser 1 in Mpt

Product Description

The R W LYALL 1453-91-4614-25 is an anodeless meter riser designed to transition underground polyethylene pipe to above-ground metallic pipe in natural gas, propane, and yard gas distribution systems. The riser ships with a Con-Stab ID Seal coupling for a secure stab-type connection at the polyethylene end, eliminating the need for cathodic protection or an anode rod. Tubing meets ASTM F1973 standards and is rated to 125 PSIG operating pressure. The machined adapter end is threaded 1 inch Male Threaded x 1 inch IPS for direct connection to standard metering equipment. Licensed gas plumbers and utility contractors are the primary installers of this component.

This riser is used in residential and light commercial gas distribution applications where a service line transitions from below-grade SDR11 polyethylene pipe to an above-ground meter set. It is suited for natural gas distribution, propane gas distribution, and yard gas systems. The vertical run measures 30 inches and the horizontal run measures 16 inches, providing standard service-line geometry for typical meter-set installations. The Con-Stab ID Seal coupling included with this riser allows a direct, tool-assisted stab connection to IPS polyethylene pipe without requiring heat fusion equipment on the polyethylene side.

Key Features

• Anodeless design eliminates cathodic protection requirements, reducing installation cost and ongoing maintenance
• Con-Stab ID Seal coupling included for a secure, no-fusion connection to polyethylene pipe
• ASTM F1973 SDR11 polyethylene tubing with 0.119 inch wall thickness
• 125 PSIG pressure rating suitable for gas distribution service pressures
• Machined 1 inch MPT x 1 inch IPS adapter end for direct meter-set connection
• Meets ANSI B1.20.1, CSA, IAPMO/UPC, and NFPA 58 standards

Compatibility

Designed for use with 1 inch IPS SDR11 polyethylene gas service pipe conforming to ASTM F1973 in natural gas, propane, and yard gas distribution systems. End connection is 1 inch Male Threaded x 1 inch IPS.

Installation Notes

Installation of gas meter risers must be performed by a licensed gas plumber or qualified utility contractor in accordance with NFPA 58, applicable local gas codes, and the fitting manufacturer instructions. Shut off gas supply and verify zero pressure before making any connections. The Con-Stab ID Seal coupling requires proper pipe preparation including cutting the polyethylene pipe square and deburring the end before stab insertion. Do not overtighten threaded connections at the meter-set end; use only compatible thread sealant rated for gas service.

Technical Specifications

• Type: Anodeless Meter Riser
• Application: Gas Distribution
• End Connection: 1 inch Male Threaded x 1 inch IPS
• Vertical Length: 30 inches
• Horizontal Length: 16 inches
• Tubing Material: ASTM F1973 Polyethylene
• Schedule: SDR11
• Wall Thickness: 0.119 inches
• Pressure Rating: 125 PSIG
• Inclusions: Con-Stab ID Seal Coupling
• Applicable Standards: ANSI B1.20.1, CSA, IAPMO/UPC, NFPA 58

Standard Information

• Brand: R W LYALL
• Manufacturer Part Number: 1453-91-4614-25