ISTEC Corporation, your Flow Measurement and Control Specialist
 

ISTEC CORPORATION
Flow Measurement & Control
5 Park Lake Road, Unit 6
Sparta, NJ 07871 USA
Tel 973-383-9888
Fax 973-383-9088
Email


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Model “A” Series Gas Meters

 Model “A” Series Gas Meters (400A-675A-800A-1000A)The "A" Series commercial diaphragm meters comprise a range of positive displacement gas measurement devices with capacities of 400 to 1000 ft3/hr (11m3/hr to28m3/hr). These meters use proven diaphragm meter technology in a 3-chambered design to provide accurate measurement across their respective flow ranges. Long-life and low maintenance are assured by the combination of a self-lapping orbital valve, a one-piece seamless diaphragm, and few moving parts. Careful attention to design makes them compact and lightweight for their capacity ratings.

COMPATIBILITY

These meters are intended primarily for use with natural gas, but are compatible with a variety of non-corrosive dry gases. A compatibility listing is found in the table at right. For gases not listed, contact ISTEC Corporation.

 

FEATURES APPLICATIONS
  • Lightest Meters in their Respective Capacity Ranges
  • Retrofits to Any Competitive Installation
  • 3-chamber Design
  • Wearless Orbital Valve
  • One-piece
  • Seamless
  • Convoluted Diaphragm
  • Lubrication-free Bearings
  • Instrument Adaptable
  • EZ-VU Adjustment System (675A -1000A)
  • O-ring Diaphragm Seal (675A -1000A)
  • Parts Commonality with Old Style (Sprague, Easy Turn) Allows Simple Installation
  • AMR-compatible

Model 400A

  • Restaurants
  • Dry Cleaners
  • Service Stations

Models 675A, 800A, 1000A (ET)

  • Schools
  • Hospitals
  • Hotels

Meter Classification
400A
675A
800A
1000A

Meter Type
Non-temperature compensated or temperature compensated

Hub Center-to-Center
6-25/32" or 8-1/4"
10"
11"
11"

Hub Sizes
#4 Sprague Standard 20LT, 30LT, 45LT
#4 Sprague Standard 30LT, 45LT
#5 Sprague Standard 30LT, 45LT, 60LT, 100LT
#5 Sprague Standard 45LT, 60LT, 100LT

Index Type
4-circle dial (ft3)
Standard 7", 14", 2 psig
4-digit direct read (ft3)
5-digit direct read (ft3 or m3)
7-digit direct read (m3)
5-circle dial (ft3)
Standard 7", 14"
5-digit direct read (ft3)
6-digit direct read (m3)
7-digit direct read (m3)

Sealing
Red Plastic Snap-seals

Badge Information
As required

Adjustment Information
As required
 
Surface Treatment
ASA 49 Gray Paint

Packaging
Single Pack
24/skid
Single Pack
12/skid

DIMENSIONS


Model
A1
A2
B1
B2
C
D
E
Wt

400A
6.78"
(172mm)
8.25"
(210mm)
9.5"
(241mm)
10.9"
(277mm)
14.71"
(374mm)
8.71"
(221mm)
9"
(229mm)
12.3 lbs
(5.6 kg)

 
A
B
C
D
E
Wt

675A
10"
(254mm)
23.2"
(589mm)
18.6"
(472mm)
15.6"
(396mm)
13.3"
(338mm)
43 lbs
(19.5 kg)

800A
11"
(279mm)
23.2"
(589mm)
18.6"
(472mm)
15.6"
(396mm)
13.3"
(338mm)
43 lbs
(19.5 kg)

1000A
11"
(279mm)
23.2"
(589mm)
18.6"
(472mm)
15.6"
(396mm)
13.3"
(338mm)
43 lbs
(19.5 kg)

675A ET
10"
(254mm)
24.8"
(630mm)
18.6"
(472mm)
15.6"
(396mm)
13.3"
(338mm)
43 lbs
(19.5 kg)

800A ET
11"
(279mm)
24.8"
(630mm)
18.6"
(472mm)
15.6"
(396mm)
13.3"
(338mm)
43 lbs
(19.5 kg)

1000A ET
11"
(279mm)
24.8"
(630mm)
18.6"
(472mm)
15.6"
(396mm)
13.3"
(338mm)
43 lbs
(19.5 kg)

 

Dimensions Drawings

MODEL 400A


Badges Aluminum

Carrier Wire Brackets Acetyl

Carrier Wires C117 Steel, Zinc Dichromate Plate

Case Screws Grade 1

Center Shaft 416 Stainless Steel

Diaphragm Nitrile Rubber, Dacron Polyester Voile Fabric

Diaphragm Tin Center : #500S-H22 Aluminum Outer: Tin Plate Outer Flange: Tin Plate

Gaskets Cork/Neoprene

Hubs Zinc-plated Steel

IDM Seal Acetyl

Index Box Polycarbonate

Index Drive Movement Shaft: 416 Stainless Steel Housing: Acetyl

Index Face Plate ABS

Index Gears Acetyl

Links Acetyl

Lower Main Die-cast Zinc ZA-3

Meter Center, Sides, Top Case Die-cast Aluminum Alloy 13380 or 13383

Tangent Crank Die-cast Zinc ZA-3

Timing Arm 360 Brass

Valve Seat and Cover Thermoset Phenolic

MODELS 675A, 800A, 1000A


Badges Aluminum

Carrier Wire Brackets Acetyl

Carrier Wires C117 Steel, Zinc Dichromate Plate

Case Screws Grade 1

Center Shaft Glass-reinforced Nylon

Diaphragm 416 Stainless Steel

Diaphragm Tin Nitrile Rubber, Dacron Polyester Voile Fabric

Gaskets Center : #500S-H22 Aluminum Outer: Tin Plate Outer Flange: Tin Plate

Hubs Nitrile Rubber

IDM Seal Zinc-plated Steel

Index Box Acetyl

Index Drive Movement Polycarbonate

Index Face Plate Shaft: 416 Stainless Steel Housing: Acetyl

Index Gears ABS

Links Acetyl

Lower Main Acetyl

Meter Center, Sides, Top Case Lead

Tangent Crank Die-cast Aluminum Alloy 13380 or 13383

Timing Arm 360 Brass

Valve Seat and Cover Thermoset Phenolic

ET Mounting Plate Die-cast Aluminum Alloy 13380 or 13383

400A SERIES METER ACCURACY – Air

400A Series Meter Accuracy – Air

400A SERIES METER OPTIONAL TEMPERATURE COMPENSATION

400A Series Meter Optional Temperature Compensation

400A SERIES METER CAPACITY & PRESSURE LOSS

400A Series Meter Capacity & Pressure Loss

400A SERIES METER ACCELERATED LIFE TEST – Running at 800 ft3/hr. (22.6 m3/hr.)

400A Series Meter Accelerated Life Test

675A, 800A, 1000A SERIES METER ACCURACY – Air

675A, 800A, 1000A Series Meter Accuracy – Air

675A, 800A, 1000A SERIES METER OPTIONAL TEMPERATURE COMPENSATION

675A, 800A, 1000A Series Meter Optional Temperature Compensation

675A, 800A, 1000A SERIES METER CAPACITY & PRESSURE LOSS

675A, 800A, 1000A Series Meter Capacity & Pressure Loss

675A, 800A, 1000A SERIES METER ACCELERATED LIFE TEST – 675A Running at 900 ft3/hr. (25.5 m3/hr.)

675A, 800A, 1000A Series Meter Accelerated Life Test – 675A Running at 900 ft3/hr (25.5 m3/hr)

Gas Type
Specific Gravity
Conversion Factor
Air
1.00
1.00
Argon
1.38
0.85
Dry Carbon Dioxide
1.52
0.81
Ethane
1.04
0.98
Helium
0.14
1.49
Hydrogen
0.07
1.49
Krypton
2.82
0.59
Methane (pure)
0.55
1.35
Natural Gas
0.60
1.29
Neon
0.70
1.20
Mitrogen
0.97
1.02
Propane
1.53
0.81
Xenon
4.53
0.47

Download PDF VersionDown Installation Manual