Watts IWTG-Gas User Manual
For Commercial, Residential and Institutional Applications
ES-IWTG-GAS
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
Series IWTG-Gas
Air Test Assembly Gauges
Dial Sizes: 2" (50mm)
Series IWTG-Gas Air Test Assembly Gauges are used in
commercial, residential, and institutional HVAC applications.
The gauges have
3
⁄4" (20mm) FPT chrome-plated brass man-
ifolds, steel cases, Kostil Polymer windows,
3
⁄4" (20mm) FPT
x Schrader type air valves with caps connections, and copper alloy Bourdon tube pressure elements. Accuracy is
ASME, Type B. The Series IWTG gauges are available in various pressure rating scales.
Features
• Black enamel steel case
• Kostil polymer window
•
3
⁄4" (20mm) FPT chrome-plated brass manifolds
•
3
⁄4" (20mm) FPT x Schrader type air valves with
caps connections
• Copper alloy Bourdon sensing element
• Tin alloy welding
• ASME Type "B" accuracy
Standards
ISO 9002 quality standard
ASME B40.100
Temperature
Working Temperature: 14°F to 176°F (-10°C to 80°C)
IWTG-GAS
Job Name
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Contractor
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Job Location
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Approval
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Engineer
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Contractor’s P.O. No.
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Approval
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Representative
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ES-IWTG-GAS 0630 © Watts Regulator Company, 2006
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
Water Safety & Flow Control Products
Materials
Case: steel - black enamel
Window: Kostil polymer
Manifolds: FPT chrome-plated brass
Sensing Element: copper alloy Bourdon tube
Welding: tin alloy
Dimensions — Weights
C
MODEL SCALE SIZE (DN) DIMENSIONS WEIGHT
ABC D E F
in. mm in. mm in. mm in. mm in. mm in. mm lbs. kgs.
IWTG-Gas 2 0 – 15psi 103 kPa3⁄4" (20mm) FPT 2 64 27⁄8 72 13⁄8 35 35⁄8 92 13⁄16 30 15⁄16 33 .82 .37
IWTG-Gas 2 0 – 30psi 207 kPa3⁄4" (20mm) FPT 2 64 27⁄8 72 13⁄8 35 35⁄8 92 13⁄16 30 15⁄16 33 .82 .37
IWTG-Gas 2 0 – 60psi 413 kPa3⁄4" (20mm) FPT 2 64 27⁄8 72 13⁄8 35 35⁄8 92 13⁄16 30 15⁄16 33 .82 .37
IWTG-Gas 2 0 – 100psi 689 kPa3⁄4" (20mm) FPT 2 64 27⁄8 72 13⁄8 35 35⁄8 92 13⁄16 30 15⁄16 33 .82 .37
D
E
B
F
A
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