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AL-425 Basic
AL425 Diaphragm Meters Series
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Overview
The Honeywell American Meter AL-425 class diaphragm meter is in a class by itself for accuracy retention and life cycle maintenance economies, ideally suited for larger residential or small commercial & industrial installations.
Specifications
Approvals
- Accuracy Standard
- Up to 25 psig
Performance
- Operating Pressure Range
- Up to 25 psig
- Maximum Flow Capacity
- 425 SCFH (12.0 m³/h) at 1/2‑in WC differential
- Maximum Allowable Operating Pressure (MAOP)
- 10 psig or 25 psig (690 or 1724 mbar)
General Overview
- Meter Types
- Diaphragm Gas Meter
- Gas Type
- Variety of gases (0.60 specific gravity standard)
- Applications
- Large residential and small commercial/industrial gas measurement
Index
- Index Type
- Pointer or Odometer
Construction
- Construction Materials
- Die-Cast Aluminum Case, Graphite-filled phenolic Valve
- Coating Type
- Polyester primer with high‑solids polyurethane top coat
Connection Options
- Connection Size
- 20 LT, 30 LT, 45 LT, and others
Operating Conditions
- Compensation Range
- -30 to 140 deg F (-34 to 60 deg C)
Safety & Compliance
- Approvals
- ANSI B109.1, Measurement Canada Accredited
Approvals
- Accuracy Standard
- Up to 25 psig
Performance
- Operating Pressure Range
- Up to 25 psig
- Maximum Flow Capacity
- 425 SCFH (12.0 m³/h) at 1/2‑in WC differential
- Maximum Allowable Operating Pressure (MAOP)
- 10 psig or 25 psig (690 or 1724 mbar)
General Overview
- Meter Types
- Diaphragm Gas Meter
- Gas Type
- Variety of gases (0.60 specific gravity standard)
- Applications
- Large residential and small commercial/industrial gas measurement
Index
- Index Type
- Pointer or Odometer
Construction
- Construction Materials
- Die-Cast Aluminum Case, Graphite-filled phenolic Valve
- Coating Type
- Polyester primer with high‑solids polyurethane top coat
Connection Options
- Connection Size
- 20 LT, 30 LT, 45 LT, and others
Operating Conditions
- Compensation Range
- -30 to 140 deg F (-34 to 60 deg C)
Safety & Compliance
- Approvals
- ANSI B109.1, Measurement Canada Accredited
- Accuracy Standard : Up to 25 psig
- Operating Pressure Range : Up to 25 psig
- Meter Types : Diaphragm Gas Meter
- Maximum Flow Capacity : 425 SCFH (12.0 m³/h) at 1/2‑in WC differential
- Maximum Allowable Operating Pressure (MAOP) : 10 psig or 25 psig (690 or 1724 mbar)
- Index Type : Pointer or Odometer
- Gas Type : Variety of gases (0.60 specific gravity standard)
- Construction Materials : Die-Cast Aluminum Case, Graphite-filled phenolic Valve
- Connection Size : 20 LT, 30 LT, 45 LT, and others
- Compensation Range : -30 to 140 deg F (-34 to 60 deg C)
- Coating Type : Polyester primer with high‑solids polyurethane top coat
- Approvals : ANSI B109.1, Measurement Canada Accredited
- Applications : Large residential and small commercial/industrial gas measurement
Installation Instructions
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10347P103
SCREW 1/4-20X3/4 AL425 10# DR
10347P103
SCREW 1/4-20X3/4 AL425 10# DR
16423P024
SCREW 1/4-20X3/4 AL425 25# TC-DRILLED
16423P024
SCREW 1/4-20X3/4 AL425 25# TC-DRILLED
17550G062
ASSY, FLAG ARM (AL425)
17550G062
ASSY, FLAG ARM (AL425)
19316P086
SCREW, UNDERCUT COMBO HD-EMBRIDGE
19316P086
SCREW, UNDERCUT COMBO HD-EMBRIDGE
25276G139
CRANK FRAME & TANGENT REG AL425 2' SST
25276G139
CRANK FRAME & TANGENT REG AL425 2' SST
25276G140
CR,CR FR&TCTANAL425 2'SST
25276G140
CR,CR FR&TCTANAL425 2'SST
25276G146
CR FR&TC TANG ASY 2TC MT
25276G146
CR FR&TC TANG ASY 2TC MT
26016G063
CR&WORM ASSY AL425 2'
26016G063
CR&WORM ASSY AL425 2'
28736P006
FLAG ARM, SHORT (AL425)
28736P006
FLAG ARM, SHORT (AL425)
28873W022
VALVE COVER FRONT
28873W022
VALVE COVER FRONT
