Regulator and N.O.V.V. vent weather cap-insect screen
$6.35
$6.95
$30.15
$46.95
$123.25
$233.25
U50000
U50100
U50125
U50200
U50300
U50400
A Listed normally open (N.O.) vent valve with vent pipe run to a safe outside location is required when the line capacity exceeds 400,000Btu/hr.(117kW). Do not manifold to other vent lines. Size the vent line according to the following table.
GAS SERVICE REGULATOR VENT SIZING CHARTS
1 1/4" Regulator Vent Pipe 2"Regulator Vent Pipe
Maximum Length = 43'Maximum Length = 60"
Number of Elbows* = 3 Number of Elbows* = 3
NOTE
1-1/4" Regulators with 1-1/4" bodies and 3/4" vent openings shall have 1 -1/4" size vent lines as a minimum
For regulators with 2" body size 1" regulator vent opening, that reduce pressure in mains operating at pressure between 60 psi and 124 psi.