Pressure Independent Valves
Pressure Independent Control Valves
Sizes: 1/2″ – 10″
Griswold Controls’ pressure independent (PI) valves are designed to
replace conventional 2-way control and balancing valve pairs at
heating and cooling coils.
By delivering precisely the required amount of chilled or heated
water — no more, no less — these valves reduce energy waste,
improve occupant comfort, and increase overall system efficiency.
Unlike traditional control valves that allow over- and under-flow,
PI valves maintain consistent flow regardless of pressure changes,
reducing actuator cycling and optimizing plant capacity.
Energy Efficiency
Eliminates overflow and maintains design temperature differential.
Optimized Performance
Improves available plant capacity and simplifies system control.
Reduced Operating Costs
Minimizes capital expenses and unnecessary energy waste.
Recommended Applications
- Office buildings, schools & hotels requiring load balancing
- Hospitals, laboratories & prisons where temperature variance cannot be risked
- Systems requiring extended actuator life
- Primary variable flow systems needing optimization
Installation, Operation and Maintenance
| Form# | Description |
|---|---|
| F-709ZG (PDF) | Installation, Operation and Maintenance |
| F-4332 (PDF) | Installation & Operations Instructions For MVP Valve |
| Pinnacle (PDF) | Pinnacle Installation Operation and Maintenance Manual |
| F-5580 (PDF) | PIM-A Mini Installation Operation and Maintenance Manual |
| F-5592 (PDF) | EPIC System Installation, Operation and Maintenance |
| F-5595 (PDF) | BTU Meter Installation, Operation and Maintenance |
| F-5621 (PDF) | Streamline Installation & Operation Instructions (IOM) |
Pressure Independent Control Valves
Sizes: 1/2″ – 3″
PIC-V valves provide pressure independent control using an actuated
ball valve paired with an isolation ball valve.
The Space Saver PIC-V delivers the same precise performance in a
compact footprint with an integrated actuated ball valve.
Flow Range 1 – 95 GPM
Optional Feature Union end connection available
Specification Sheets & Product Information
| Form# | Description |
|---|---|
| F-5509 (PDF) | 1/2″ – 3″ SpaceSaver PIC-V® Specification Sheet |
| F-5508 (PDF) | 1/2″ – 3″ PIC-V® Specification Sheet |
| F-4478 (PDF) | 1/2″ – 2″ PIC-V® Written Specification |
| F-4479 (PDF) | 1/2″ – 1″ Typical Coil Piping Installation Schematic |
| F-5357 (PDF) | PIC-V® Variable Cv Without Balancing |
| F-5363 (PDF) | Pressure Independent Control Valves PIC-V® & MVP® |
| F-5487 (PDF) | Choosing the Right Valve for the Job: PIC-V® or Automizer® |
| F-5531 (PDF) | Flow at Full Load and Reduced Load Position |
Pressure Independent Control Valves
Sizes: 2-1/2″ – 10″
MVP® valves provide pressure independent control with an actuated valve
designed for high-capacity HVAC systems.
Specification Sheets & Product Information
| Form# | Description |
|---|---|
| F-4271 (PDF) | 2-1/2″ – 10″ MVP® Specification Sheet |
| F-4499 (PDF) | MVP™ Typical Installation Schematic 1/2″ – 10″ |
| F-5363 (PDF) | Pressure Independent Control Valves PIC-V® & MVP® |
| F-5655 (PDF) | Pressure Independent MVP Actuator |
| F-5572 (PDF) | Weather Shield for SM |
Pressure Independent Control Valves
Sizes: 1/2″ – 2″
Pinnacle valves offer pressure independent control with an actuated ball valve
in the most compact footprint we offer.
They are available in 1/2″ to 2″ size and flows from 0.163 GPM to 60.0 GPM.
Specification Sheets & Product Information
| Form# | Description |
|---|---|
| F-5556 (PDF) | Pinnacle Color Brochure |
| F-5557 (PDF) | Pinnacle Specification Sheet |
Pressure Independent Control Valves
Sizes: 1/2″ – 6″
PIM is a modular system designed to control pressure differential across any system.
It can control pressure across a new actuated valve (PIM-V) or an existing valve or coil (PIM-A). Available in 1/2″ to 6″ size.
Specification Sheets & Product Information
| Form# | Description |
|---|---|
| F-5532 (PDF) | PIM Pressure Independent Module |
| F-5533 (PDF) | PIM-V Pressure Independent Valve |
| F-5534 (PDF) | PIM-BV Pressure Independent Module with a Manual Ball Valve |
| F-5535 (PDF) | PIM-V-MS Pressure Independent Valve with Metering Station |
| F-5510 (PDF) | PIM 4 page Color Brochure |
| F-5576 (PDF) | PIM-A Mini Specification Sheet |
| F-5578 (PDF) | PIM-A Mini Color Brochure |
| F-5568 (PDF) | PIM-A Brochure |
Pressure Independent Control Valves
Sizes: 1/2″ – 10″
The FIT Energy System measures energy usage while continuously monitoring coil performance to dynamically adjust a Pressure Independent (PI) Control Valve and optimize coil Delta T.
Designed for high-performance HVAC systems, FIT enhances system efficiency, reduces energy waste, and maximizes operational control.
Specification Sheets & Product Information
| Form# | Description |
|---|---|
| F-5587 (PDF) | FIT Energy System Color Brochure |
| FIT-G Energy System(PDF) | FIT-G Energy System 1/2"-2" Specification Sheet |
| FIT Energy System(PDF) | FIT Energy System 2-1/2"-10" Specification Sheet |
| F-5636 (PDF) | BACnet Protocol Implementation Conformance Statement |
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