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Title: Procedure For Replacing Pin-Off Tee With 3/4 Service Valve
Author: T. R. Rumsey
Source: American Gas Association 1986
Year Published: 1986
Abstract: During the 1950s, Northern Illinois Gas installed gas services to residential and small commercials with 3/4 coated and wrapped steel pipe. The services were generally installed with the riser and service regulator outside and the meter inside. The service riser shut-off was a 3/4xl valve tee (pin-off tee) (Figure 2). Nl-Gas now has a program to relocate meters from inside to outside. When a pin-off lee was replaced with a H.P. service valve during the meter relocation, a street crew was needed to shut-off gas service at the street. The new pin-off lee change-oui kit allows an individual to replace the pin-off tee with a H service valve without digging or without flowing gas.

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