Badger Meter Oscillating Piston Specifications

Industrial Meters

Oscillating Piston Model OP Sanitary, 3A Approved Sizes 1/2", 1", 2"

DESCRIPTION

The Badger Meter positive displacement meter, Model OP, is one of the most cost effective methods for metering process fluids in the chemical, pharmaceutical and food industries. The simple but efficient design of the OP meter generates high accuracy and repeatability over the entire meter flow range. Magnetic, through-the-wall transmission prevents operator exposure to corrosive fluids and protects the fluid from external contamination.

Offered in three sizes, 1/2", 1" and 2", for flows up to 100 gpm, these meters are extremely rugged, reliable and need little maintenance and calibration. With only three internal moving parts, maintenance is seldom required. If necessary, it takes but a few minutes.

All parts are designed and built of materials recommended for your application, providing you with a long life, trouble-free, precision flow meter. The meter’s compact design and mode of operation allows for installation in tight spaces and in any position.

To complement the OP meter line, Badger Meter offers a complete line of accessories that includes mechanical, pneumatic, electromechanical and electronic transmitters, totalizers, indicators and batch/process controllers.

MATERIALS OF CONSTRUCTION

OPERATION

The meter function is based on the continuous filling and discharging of the measuring chamber (positive displacement). Controlled clearances between the piston and the chamber provide minimum gap leakage for precise measurement of each volume cycle. As the piston oscillates, its center hub rotates a magnet. The movement is sensed through the meter wall by electromagnetic sensors or by a follower magnet. Each revolution of the magnet is equivalent to a fixed volume of fluid, which is converted to any engineering unit of measure for totalization, indication or process control.

All Meter Sizes Sanitary Model

Housing Materials 316 Stainless Steel

Piston Materials Ultem

O-Ring Materials Teflon

Bushing Material Rulon (white)

Magnet Casing Alloy 20

Control Roller Alloy 20

OPM-DS-01066-EN-01 (June 2015)

Product Data Sheet

Industrial Meters, Oscillating Piston Model OP Sanitary, 3A Approved

DIMENSIONS

1/2" 1" 2"

A 4.31" 6.16" 6.63" B 2.32" 3.81" 5.56" C 15.83" 16.21" D 1.75" 2.13" 3.00" E 6.75" 11.00" 12.62" E* 6.75" 11.00" 11.81"

* Tri-Clamp

Dimensions shown are of meter with angle drive and PC meter mount or with rear drive and transmitter.

vary slightly. Please consult with factory

SPECIFICATIONS

1/2" 1" 2" Minimum Flow Rate, Q Minimum 1.5 gpm 5.5 gpm 25 gpm Continuous Operating Maximum Rate 4 gpm 20 gpm 65 gpm Short Duration Maximum Flow, Q Maximum

Continuous operation is acceptable at these rates, but accelerated wear of the piston and/or bushings may occur.

Standard Connections Tri-Clamp Tri-Clamp Tri-Clamp Pressure Drop at

Maximum Continuous Operating Flow

(@ viscosity & specic gravity of water)

Maximum Viscosity Limit

Maximum Operating Pressure 150 psi Maximum Operating Temperature 250 °F Minimum Operating Temperature**

**Minimum temperature for stated accuracy.

Accuracy ± 0.5% over entire meter flow range Repeatability ± 0.2% or better under similar repeatable batch operations

6 gpm 30 gpm 100 gpm

1.8 psi 6.3 psi 10.6 psi

Pressure loss increases with fluid viscosity

10,000 cps (flow range is decreased as viscosity increases).

Contact factory for higher viscosities

40 °F

Metric Conversion: psi x 0.0703 = bars gpm x 3.785 = liters per minute ° F - 32 x 0.555 = ° C

ACCURACY CURVES: Accuracy tested in ambient temperature on water. Higher accuracy may be achieved with more viscous uids.

Control. Manage. Optimize.

Trademarks appearing in this document are the property of their respective entities. Due to continuous research, product improvements and enhancements, Badger Meter reserves the right to change product or system specications without notice, except to the extent an outstanding contractual obligation exists. © 2015 Badger Meter, Inc. All rights reserved.

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Badger Meter Oscillating Piston Specifications

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