Set up in 1995, Tonglu Valves Manufactring Co.,Ltd. is one of the leading China gas pipe manufacturer and supplier in Yongjia County of Zhejiang Province. We manufacture all products strictly conforming to the API, JIS, ANSI, BS, GB, NF and DIN standards. Our oem gas pipes are available to users on request and are used for municipal works, petroleum, chemical industry, power station, metallurgy, national defense, and scientific research fields.

Designed for use on approved gas appliances in re
Involves incorporating a LockTab in the female en
The incorporation of a LockTab feature simply imp
Gives installer the option of engaging the LockTa
Round pipe design
SELKIRK METALBESTOS ROUND GAS VENT PIPE Type"B" Metalbestos double-wall construction Outer pipe is strong, durable galvanized steel Inner pipe is aluminum-built-in air space- provides for permanent insulation Requires 1" clearance to combustible surfaces Couplers & fittings overlap 1-1/2" when joined For approved gas burning equipment only NOT FOR USE WITH OIL OR WOODBURNING APPLIANCE 4RV-4 48 IN. RD GAS VENT PIPE SIZE:4"x48"

Selkirk #104060 4x5' Gas Chimney Pipe
SELKIRK LLC
4" x 5' Gas Chimney Pipe Section, Class B.
Type "B"
OD = ID + 1/2"
Installed length 1-1/2"
less than listed length
Aluminum inner wall,
"SELKIRK" ROUND GAS VENT PIPE Type "B" OD = ID + 1/2" Installed length 1-1/2" less than listed length Aluminum inner wall, galvanized outer wall For gravity draft venting of LP or Natural Gas appliances 100 million BTU/hr. max, 500 deg. max. Not for wall furnaces UL listed 10 yr.

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