RPDASeriesRotary Piston Double Acting Actuators
RPDARotary Piston Double Acting Actuators Are Suited for Below Ground Regulation and"Bleed to Pressure System" Applications
Description: The RPDARotary Piston Double Acting Actuator is designed for heavy
duty control applications that require optimum performance. The RPDA
is typically utilized when applications require a "lock last" failure mode.
The RPDAincorporates a “crank-arm” mechanism specifically designed
for the rigors of throttling
control valve applications. The RPDAcan
accept high pressure power supply gas up to 500 psig (3447 kPa)
enabling the use of smaller actuators or Becker’s exclusive Bleed to
Pressure System (BPS) feature. Features:
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Bleed to Pressure System Can Eliminate Bleed Gas Emissions
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RPDAActuator can retrofit to almost any valve in your pipeline
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“Bleed to Pressure System” Can Eliminate Bleed Gas Emissions
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High Pressure RPDAActuator accepts high-pressure natural gasup to 500 psig.
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Upright actuator design promotes longer actuator piston seallife, saves space
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The RPDARotary Piston Double Acting Actuator is designed tobe maintenance free!
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All RPDAactuators come equipped with a precision linear scalethat indicates valve position in ten (10) degree increments.
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Crank arm design actuators are specifically suited for controlvalve applications Figure 1.0 - Becker RPDARotary Piston Double Acting Actuator The Becker RPDAActuator is a rugged, quarter-turn actuator design for
the rigors or aggressive throttling service. The RPDAfeatures a high
pressure crank-arm design specifically geared for
control valve service.
The high pressure capability of the RPDAallows power gas pressures
up to 500 psig. This extended power gas range permits the implemen-
tation of Becker's unique "Bleed to Pressure System" that eliminates all
atmospheric emissions. Additionally, the RPDAis available with a Below
Ground Option to substantially reduce noise with minimal additional
expense.
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RPDAActuators may be mounted in any installation orientation Technical SpecificationsActuator Mechanism Type: Pneumatic Crank Arm Rotation (Output): 90° (Standard) Actuator Stops: Integral Installation: Vertical (recommended) or Horizontal Coating: Epoxy (Standard) Power Gas Requirements: Sweet Natural Gas* Maximum Power Gas: Minimum Power Gas: Torque Output: 500 psig (3447 kPa) Models 10L&Smaller
450 psig (3103 kPa) Models 12L&Larger 50 psig(345 kPa) recommended See Table 7.0 Operating Temperature Range: Weight: -20°F to +160°F (-29°C to +71°C) Standard
-30°F to +160°F (-34°C to +71°C) *Optional Low Temperature Spec. See Table 3.0, 4.0 & 5.0 Dimensions: See Table 3.0, 4.0 & 5.0 Sweet Natural Gas Specifications: Filtered to 100µ nominalFree of excessive moisture (
