Brochure
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Cast Iron Meter Bars
Cast Iron Meter Bars
4-19
Meter Bars
A.Y.
McDonald
Mfg. Co. Cast Iron Meter Bars have heavy, one piece I-Beam construction to protect the meter from piping stresses and
ensure a solid installation.
Gas Meter Bars without Integral Swivels
National Pipe Threads (NPT) are provided on the inlet, outlet, and bottom swivel taps. A. Y. McDonald meter bars can t most requirements
by using them with a combination of straight or offset meter swivels.
Gas Meter Bars with Integral Swivels
National Pipe Threads (NPT) are provided on the inlet and outlet taps. Special meter swivels are integral to the meter bar, thus decreasing
leakage potential and improving convenience of handling and maintenance. Swivels are provided with at gaskets or o-rings.
INSULATED UNION OUTLET
The union outlet can be provided insulated to
minimize electrolysis.
INLET AND OUTLET CONNECTIONS
NPT inlet tapping provides a solid connection directly
into the bar. Outlets are provided with NPT integral or union
type connections. Union connections have a at rubber
gasket or an o-ring seal.
Positions A-B-C-D are possible pressure tap
locations. Please refer to Block 7 for pressure
tap options.
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I n l e t e n d f r o n t
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Note: These bars are intended for use with natural, manufactured and L.P. gas only.
- Meter bars are electronically leak tested or equivalent at a minimum of 60 PSIG.
METER BAR - Cast iron per ASTM A126 Class B
UNION NUT - Malleable iron per ASTM A47 or Ductile iron per ASTM A536
UNION TAILPIECES - Zinc plated yellow dichromate nished steel
INSULATED UNION TAILPIECES - Super tough nylon 66 insulation
FLAT GASKET/O-RINGS - Buna-N or neoprene suitable for use with natural, manufactured and L.P. gases
SWIVELS AND SWIVEL NUTS - Malleable iron per ASTM A47 or Ductile iron per ASTM A536
METER PLUGS - Cast iron per ASTM A126 Class B
Material Specications
All connections with pipe threads require use of thread sealant at installation. (PTFE tape is not recommended, see instruction sheet.)