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Applicable Models:
This Instruction Manual applies to the following VRG RP Series Regulator Pilots. To confirm
suitability for additional models and/or componenents, please contact VRG Controls or view
us online at
www.vrgcontrols.com
RP-225-SN-CS
VRG CONTROLS LLC.
RP Series Regulator Pilot Instruction Manual
RP-700-SN-OS
RP-700-SN-CS
RP-700-SN-CS-HP
Installation, Operation, Maintenance Manual
1 of 26
RP Series Regulator Pilot
RP-1500-SN-CS
FEBRUARY 2025
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Table of Contents
Related Manuals for VRG Controls RP Series
Summary of Contents for VRG Controls RP Series
- Page 1 Installation, Operation, Maintenance Manual RP Series Regulator Pilot Instruction Manual Applicable Models: This Instruction Manual applies to the following VRG RP Series Regulator Pilots. To confirm suitability for additional models and/or componenents, please contact VRG Controls or view us online at www.vrgcontrols.com...
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Page 2: Table Of Contents
RP Series Regulator Pilot Installation, Operation, Maintenance Manual Table of Contents Description Page Scope of Manual & Technical Assistance Product Description Installation Maintenance Technical Specifications Model Numbers Control Spring Specifications Flow Calculations T-block Explanation Normally Open / Normally Closed Explanation... -
Page 3: Scope Of Manual & Technical Assistance
This Instruction Manual provides instructions for installation, maintenance, adjustment and troubleshooting of VRG Controls RP Series Regulator Pilots. This product is typically utilized in conjunction with pilotoperated regulators and a variety of other ancillary devices and accessories. For information on products other than those manufactured by VRG Controls, please consult the appropriate manufacturer. -
Page 4: Product Description
Table 3.0 for additional information. RP Series Regulator Pilots utilize an internal seat & nozzle internal loading configuration as noted by the characters “SN” RP Series Regulator Pilots utilize an internal seat & nozzle internal loading configuration as noted by the characters “SN”... -
Page 5: Installation
VRG Controls. ACTION: Inspect the RP Model Number Identification Label AND the Body of the RP Series Pilot to ensure that the unit has the appropriate ACTION for the desired application. Figures XX and Table XX provide necessary information to confirm RP Series Pilot Action. -
Page 6: Maintenance
Installation, Operation, Maintenance Manual SENSING LINES: Sensing Lines should be run from the Sensing Port of the RP Series Regulator Pilot to a point roughly 10 pipe diameters from the outlet of the pilotoperated regulator body. See table below for recommended piping configurations for Sensing Lines. -
Page 7: Technical Specifications
Very Good Performance Guide Sulfur Formation Sulfur Resistant Flow Capacity High Capacity Control Accuracy Ultimate Accuracy Very Good Accuracy *Special order 1/4” nozzle available for asphalt plants, contact VRG Controls for more info VRG CONTROLS LLC. 7 of 26 FEBRUARY 2025... -
Page 8: Model Numbers
RP Series Regulator Pilot Installation, Operation, Maintenance Manual RP Series Regulator Pilots Instruction Manual Model Number Explanation Table 2.0 Model Number Explanation: INTERNAL VALVE SPRING NORMAL BASE MODEL PRESSURE SERIES HIGH PRESSURE LOGIC CHAMBER TYPE STATE Regulator Seat &... -
Page 9: Control Spring Specifications
RP Series Regulator Pilot Installation, Operation, Maintenance Manual Control Spring Specifications Control Spring Setpoint Change Setpoint Control Spring RP Model Range Color per Revolution Accuracy Part Number 1.25-15 psig 0.8 psig ±0.1 psig Black CS-0100 9-103 kPa 5.5 kPa ±0.7 kPa 8-53 psig 3.1 psig... -
Page 10: Flow Calculations
RP Series Regulator Pilots Instruction Manual RP Series Regulator Pilot Installation, Operation, Maintenance Manual Flow Calculations Critical Flow Equation: × = 312.9 × (P + 14.7) × C G × ( T + 460 ) ... -
Page 11: T-Block Explanation
RP Series Regulator Pilot Installation, Operation, Maintenance Manual RPT Block Explanation All RPT pilot blocks are inscribed with a T at the bottom of the IN and OUT ports to denote that they are threaded blocks. The blocks are machined with a 5/16-24 threaded hole that the nozzle is screwed into. -
Page 12: Available Models
RP Series Regulator Pilot Installation, Operation, Maintenance Manual Available Models PA-0190: RP-225-SN-CS-NO PA-0191: RP-225-SN-CS-NC Repair Kit RK-0540 Repair Kit RK-0540 PA-0200: RP-700-SN-CS-NO PA-0201: RP-700-SN-CS-NC Repair Kit RK-0400 Repair Kit RK-0400 VRG CONTROLS LLC. 12 of 26 FEBRUARY 2025... - Page 13 RP Series Regulator Pilot Installation, Operation, Maintenance Manual PA-0300: RP-700-SN-OS-NO PA-0301: RP-700-SN-OS-NC Repair Kit RK-0400 Repair Kit RK-0400 PA-0200-HP: RP-700-SN-CS-NO-HP PA-0201-HP: RP-700-SN-CS-NC-HP Repair Kit RK-0550 Repair Kit RK-0550 VRG CONTROLS LLC. 13 of 26 FEBRUARY 2025...
- Page 14 RP Series Regulator Pilot Installation, Operation, Maintenance Manual PA-0210: RP-1500-SN-CS-NO PA-0215: RP-1500-SN-CS-NC Repair Kit RK-0550 Repair Kit RK-0550 VRG CONTROLS LLC. 14 of 26 FEBRUARY 2025...
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Page 15: Repair Kits
RP Series Regulator Pilot Installation, Operation, Maintenance Manual Repair Kits RK-0540: RP-225-SN REPAIR KIT VRG CONTROLS LLC. 15 of 26 FEBRUARY 2025... - Page 16 RP Series Regulator Pilot Installation, Operation, Maintenance Manual RK-0400: RP-700-SN REPAIR KIT VRG CONTROLS LLC. 16 of 26 FEBRUARY 2025...
- Page 17 RP Series Regulator Pilot Installation, Operation, Maintenance Manual RK-0550: RP-700-HP-SN & RP-1500-SN REPAIR KIT VRG CONTROLS LLC. 17 of 26 FEBRUARY 2025...
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Page 18: Factory Quality Checklist
RP Series Regulator Pilot Installation, Operation, Maintenance Manual RP Factory Quality Checklist VRG CONTROLS LLC. 18 of 26 FEBRUARY 2025... -
Page 19: Application Schematics
RP Series Regulator Pilot Installation, Operation, Maintenance Manual Application Table of Contents Description Page Downstream Pressure Control Relief Valve Backpressure Valve 2-Stage Cut with Monitor Override Remote Setpoint Adjustment VRG CONTROLS LLC. 19 of 26 FEBRUARY 2025... - Page 20 RP Series Regulator Pilot Installation, Operation, Maintenance Manual Application 1: Downstream Pressure Control In this application, the RP is used to regulate line pressure based on downstream sensing. The pilot is normally open, meaning that the nozzle is pointed upward. Upon rising downstream pressure, the piston will lower and close off the nozzle.
- Page 21 RP Series Regulator Pilot Installation, Operation, Maintenance Manual Application 2: Relief Valve In this application, the RP is used to open the Red Ox regulator upon rising upstream pressure. The pilot is normally closed, so the nozzle is pointed downward. Rising upstream pressure will push the piston away from the nozzle, allowing flow to pass through the RP.
- Page 22 RP Series Regulator Pilot Installation, Operation, Maintenance Manual Application 3: Backpressure Valve In this application, the RP is used to open the Red Ox regulator upon rising upstream pressure. The RP is normally closed, so the nozzle points downwards. Rising upstream pressure will push the piston away from the nozzle, opening the RP and reducing the pressure to jacket loading.
- Page 23 RP Series Regulator Pilot Installation, Operation, Maintenance Manual Application 4: 2-stage Cut with Monitor Override In this application, three RPs and two Red Ox regulators are used to make a 2-stage pressure cut with a monitor override for overpressure protection. All 3 RPs are normally open, so the nozzles point upward. Rising sensing pressure will lower the piston and close off the nozzle, restricting flow through the RP.
- Page 24 RP Series Regulator Pilot Installation, Operation, Maintenance Manual Application 5: Remote Setpoint Adjustment CLOSED SPRING RP Pilots may be mounted with a motor for remote setpoint adjustment. By supplying the motor with 24 VDC power and a 4-20 mA signal, setpoint may be remotely adjusted from an RTU building.
- Page 25 RP Series Regulator Pilots RP Series Regulator Pilot Instruction Manual Installation, Operation, Maintenance Manual Notes: RP Series Regulator Pilots Instruction Manual Notes: Our Address: Stay in Touch! VRG Controls, LLC Scan the QR Code at right Highland Park, Illinois USA for company information www.vrgcontrols.com...
- Page 26 RP Series Regulator Pilots RP Series Regulator Pilot Instruction Manual Installation, Operation, Maintenance Manual Notes: Our Address: Stay in Touch! VRG Controls, LLC Scan the QR Code at right Highland Park, Illinois USA for company information www.vrgcontrols.com and product updates eMail: Sales@VRGControls.com...
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