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54
Gas/Fuel Shut-O Valves
GB50 & GB50A SERIES
CSA GAS SHUTOFF VALVES
Designed for indoor “main burner” applications with cast-in single or dual
pilot tap. ASTM B584 bronze body, chrome-plated ball, brass stem, retainer
and gland screws for corrosion resistance.
FEATURES
• For natural gas, manufactured and mixed Gas, liqueed petroleum
gases and LP gas-air mixtures
• Rated pressures of 1/2 and 5 psig
• Standard connection is FNPT x FNPT
• High capacity
• Reversible plated steel lever handle. Optional “tee” handle (-07)
APPROVALS
• ANSI Z21.15, CGA9.1
• ASME B16.44 (2 and 5 psig)
• MSS-SP110
• UL Guide YRBX
• UL Guide MHKZ
• UL Guide YRPV
• UL Guide YSDT
• UL 125, UL 842
Model No.
Single
Tapped
Model No.
Dual
Tapped
Size
(in.)
Tapping
Dimensions (in.)
Capacity
BTU/Hr.
A B C D E F G H I
50GB-301 -- 1/2 1/8 0.50 1.11 2.25 1.68 3.85 2.27 1.00 0.53 - 693000
50GB-401 50GB-401A 3/4 1/8 0.75 1.26 2.67 1.93 3.85 2.72 1.12 0.75 2.24 1258000
50GB-501 50GB-501A 1 1/8 1.00 1.65 3.42 2.19 4.78 3.18 1.53 0.94 3.06 3144000
50GB-601 50GB-601A 1-1/4 1/8 1.25 1.87 3.86 2.37 4.78 3.56 1.62 1.15 3.24 6441000
50GB-701 50GB-701A 1-1/2 1/8 1.50 2.05 4.22 2.81 5.40 4.21 1.81 1.31 3.62 7745000
50GB-801 50GB-801A 2 1/8 2.00 2.48 5.02 3.18 5.40 4.93 2.18 1.68 4.36 14741000
50GB-5A1 50GB-5A1A 1 1/4 1.00 1.65 3.42 2.19 4.78 3.18 1.53 0.94 3.06 3144000
50GB-6A1 50GB-6A1A 1-1/4 1/4 1.25 1.87 3.86 2.37 4.78 3.56 1.62 1.15 3.24 6441000
50GB-7A1 50GB-7A1A 1-1/2 1/4 1.50 2.05 4.22 2.81 5.40 4.21 1.81 1.31 3.62 7745000
50GB-8A1 50GB-8A1A 2 1/4 2.00 2.48 5.02 3.18 5.40 4.93 2.18 1.68 4.36 14741000
* Note: Capacities based on 1000 Btu/cubic feet gas at 0.64 specic gravity, at a P.D. of 1’’ W.C.
GB-50
GB-50A
G
I
G
H
F
A
D
C
B
E