New platform
RAT-DC
20 Nm smart quarter-turn
- BACnet MS/TP & Modbus RTU
- Valve Signature™ built in
- Optional supercapacitor failsafe
RSS Scotch Yoke Spring Return
Scotch yoke
Spring-return scotch yoke that closes without air.
The RSS is RIFT’s scotch yoke spring-return valve actuator. Torque peaks at the start and end of movement, ideal for butterfly valves, and the spring closes the valve automatically — no air pressure is needed to return.
- Fail-closed spring return
- High break-out torque
- Ideal for butterfly valves
- Stock available
Technical summary
| Type | Scotch yoke, spring return |
|---|---|
| Motion | Quarter-turn |
| Return | Spring |
Specifications are a summary; refer to the datasheet or ask our engineers to confirm your configuration.
Where the RSS is used
- Safety isolation
- Process plant
- Oil & gas
Need a different torque or supply?
Every RIFT actuator is configurable. Tell us the valve and we’ll confirm the right model and options.
Ask an engineerMore pneumatic actuators
From 1.5 Nm to 14,000 Nm — SMART, electric and pneumatic actuators, all designed and supported from Bournemouth.
SMART 
RAS SMART
10–30 Nm
- IP67 protection as standard
- Bluetooth set-up from Android devices
- On/off or 4–20 mA modulating control
SMART 
RAM SMART
40–100 Nm
- Part-turn and multi-turn configurations
- IP67 for harsh environments
- Built-in touchpads for set-up
SMART 
RAL 300 SMART
100–300 Nm
- IP68 enclosure as standard
- Positioning accuracy to 0.1°
- 12–30 V DC for solar & battery sites
SMART 
RAL 600 SMART
300–600 Nm
- Up to 600 Nm output
- IP68 enclosure as standard
- AC or DC supply
Electric 
RPE
20–5,000 Nm
- 20–2,300 Nm direct drive
- 4,000 & 5,000 Nm gearbox versions
- IP67 standard, ATEX options
Electric 
RSE
50–1,200 Nm
- 50–1,200 Nm multi-turn
- IP65 standard; IP67, IP68 & Ex d options
- 4–20 mA standard control
Electric 
RQE
30–2,000 Nm
- 30–2,000 Nm output
- IP67, NEMA 4 & 6
- Lightweight: 2.1–14.5 kg
Electric 
RFT
20–100 Nm
- 20–100 Nm geared drive
- Quiet, stable operation
- 12/24 V DC or 230 V AC
Electric 
RXW
2–6 Nm
- WRAS-certified valve bodies
- Integrated manual override
- Wide voltage range
Pneumatic 
RSD
Scotch yoke
- High break-out torque
- Ideal for butterfly valves
- Quarter-turn on/off
Pneumatic 
RSS
Scotch yoke
- Fail-closed spring return
- High break-out torque
- Ideal for butterfly valves
Pneumatic 
RRD
Rack & pinion
- Linear torque output
- Compact body
- Quarter-turn
Pneumatic 
RRS
Rack & pinion
- Fail-safe spring return
- Linear torque output
- Compact body
Quote the RSS for your valve
Send the valve type, size, torque and control signal. We’ll return a price, lead time and wiring guidance.
Call the engineering team+44 (0) 1202 162457 Emailsales@riftactuators.com
Head officeUnit 6-7, 11-15 Francis Ave, Bournemouth BH11 8NX, UK