Fisher 3620J 3620JP 3620JPR Electro Pneumatic Rotary Valve Positioner IP66 Explosion Proof Valve Controller

The Fisher 3620J series (including 3620J, 3620JP, and 3620JPR) are electro-pneumatic valve positioners designed for sliding-stem control valves. The 3620J is the standard model, the 3620JP adds a position transmitter, and the 3620JPR includes both position transmitter and remote mount capability. They convert a 4–20 mA input signal into proportional pneumatic output for accurate valve positioning. These positioners are simple, reliable, and commonly used in process plants where analog control with diagnostics is sufficient.

• Chemical and petrochemical plants
• Power plant auxiliary systems
• Water and wastewater treatment
• General industrial process control
• Older pneumatic control loops

• Problem: Slow response or hunting → Solution: Check supply air pressure and clean nozzle/orifice
• Problem: Output drift over time → Solution: Simple zero and span adjustment
• Problem: Contaminated air → Solution: Install upstream filter-regulator

• Older Fisher 3582 / 3582i series
• Fisher DVC2000 digital positioner (for upgrade to smart control)

• Genuine Emerson Fisher product with factory test report
• Local technical support and calibration service
• Competitive pricing with full warranty
• Fast spare parts availability

• Standard 3620J models: 4–8 weeks typical lead time

Please provide:

• Actuator model and stroke length
• Required options (position transmitter / remote mount)
• Supply air pressure available
• Ambient temperature range
• Quantity & target delivery date