DP Range: 0-5 PSID (0-0.35 bar) thru 0-110 PSID (0-7 bar)
Mid-West Piston Type: Model 120 ± 2% or Model 122 ± 5% Full Scale Accuracy.
Piston type gauges are primarily designed for liquid applications. Differential
Pressure is sensed by the movement of a precisely ground floating piston/magnet
in a precision bore against a calibrated spring. Any variation in pressure on
either side of the piston/magnet will cause the magnet to move proportionally
to the change in differential pressure. A rotary pointer magnet located close
to the internal magnet, but outside the pressure housing, follows the movement
of the piston magnet and indicates differential pressure on the dial. Piston
type DP gauges exhibit a slight amount of bypass as the fluid crosses from the
high to the low pressure port.Due to precision sizing of piston and body bore,
leakage across the piston will not exceed 15 SCFH air at 100 PSID at ambient
conditions.
DP Ranges:
PSID, Bar, Kpa, Dual Scale
Body Materials:
Aluminum or 316L Stainless Steel
Dial Types:
2-1/2" or 4-1/2" Round Uni-Directional
Seals & Diaphragm Materials:
Buna-N or Viton
Connections:
120/122(1/4"FNPT) and 120(1/2"FNPT)
Dial Types:
2-1/2" or 4-1/2" Round Uni-Directional, 4-1/2" Round Uni-directional &
Bi-directional anodized aluminum housing assembly, Non-Indication (differential
pressure switch only)
Seals & Diaphragm
Materials:
Neoprene, Teflon, Ethylene Propylene and Perfluoroelastomer
Connections:
7/16"-20 Straight thread "O" ring port
Other Options:
Liquid Fill, Pipe, & Wall Mount kits, Reversed high/low process
connections, Maximum Indicator Follower pointer, Oxygen Cleaning, Stainless
Steel Tags
Electrical Switches:
1 & 2 switch std, NEMA 4X, CSA & UL Class 1 Div. 1 & Div 2,
Explosion Proof, plug-in DIN SPDT 3W, SPDT 60W, SPST 60W normally open or
normally closed.