The FISHER 3661 is a heavy-duty industrial valve positioner engineered for precise pneumatic actuation and reliable control of sliding-stem and rotary valves in demanding process environments.
FISHER 3661 Technical Specifications
| Type | Pneumatic valve positioner |
|---|---|
| Input Signal | 3–15 psi or 6–30 psi pneumatic |
| Supply Pressure | Up to 150 psi |
| Action | Single-acting, direct or reverse |
| Mounting | Sliding-stem or rotary actuator |
| Housing | Cast aluminum, weatherproof |
| Port Connections | 1/4 NPT |
| Operating Temperature | -40°F to 180°F (-40°C to 82°C) |
Key Engineering Features
- Precise pneumatic force-balance feedback for accurate stem positioning
- Split-range capability for sequenced valve operation
- Low air consumption with high-frequency response
- Rugged cast housing for harsh industrial environments
- Simple zero and span adjustments
Industrial Applications
- Oil and gas production and refining
- Chemical and petrochemical processing
- Power generation steam and water control
- Pulp and paper process lines
- Water and wastewater treatment
For technical inquiries, dimensional drawings, or replacement support for FISHER 3661, contact the Pro-Hydraulic engineering team.
PRODUCT IMAGES
FISHER 3661 Valve Positioner
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the FISHER 3661 Valve Positioner. This precision-engineered pneumatic instrument delivers reliable valve positioning and tight process control for heavy-duty systems.