Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"IMI STI SA CL Electro Pneumatic Positioner 4 20mA Signal Balanced Forces","imgUrl":"https:\/\/img.chinax.com\/nimg\/3a\/44\/5cf4a52849e923d24e98e34b0ec3-200x200-1\/imi_sti_sa_cl_electro_pneumatic_positioner_4_20ma_signal_balanced_forces.jpg","attrs":{"Minimum Order Quantity":"1","Supply Ability":"800 sets per year","Packaging Details":"Carton\/Wooden Case Packaging","Delivery Time":"6-8 weeks"}}
{"title":"Valve Switching Skid With KOSO 210C\/220C\/230C Ball Valve 6300RB Actuator And","imgUrl":"https:\/\/img.chinax.com\/nimg\/cd\/3d\/14c57ddc841b565b9b1afcf03e01-200x200-1\/valve_switching_skid_with_koso_210c_2f220c_2f230c_ball_valve_6300rb_actuator_and_ep801_valve_positioner_prf310_air_filter.jpg","attrs":{"Brand Name":"KOSO control valve","Model Number":"KOSO 210C\/220C\/230C","Place of Origin":"Japan","Minimum Order Quantity":"1"}}
{"title":"Flow Control Valve Skid Equipped With KOSO Valves 500M\/500D And 5200LA\/6300LA","imgUrl":"https:\/\/img.chinax.com\/nimg\/fb\/0e\/53eff40388a5f8bc9f7018525780-200x200-1\/flow_control_valve_skid_equipped_with_koso_valves_500m_2f500d_and_5200la_2f6300la_pneumatic_actuators_ep800_valve_positioners.jpg","attrs":{"Brand Name":"KOSO control valve","Model Number":"KOSO valves 500M\/500D","Place of Origin":"Japan","Minimum Order Quantity":"1"}}
{"title":"Flow Control Valve Skid And KOSO 400H Control Valve 5200LA\/6100LA Pneumatic","imgUrl":"https:\/\/img.chinax.com\/nimg\/d4\/cf\/1cad7cdd025cdecca496f3c34424-200x200-1\/flow_control_valve_skid_and_koso_400h_control_valve_5200la_2f6100la_pneumatic_actuator_ep800_positioner_cl420_2fcl523_lock_valve.jpg","attrs":{"Brand Name":"KOSO control valve","Model Number":"KOSO 400H\/5200LA\/6100LA","Place of Origin":"Japan","Minimum Order Quantity":"1"}}
{"title":"Pressure \/ Flow Control Skid And KOSO Valves With 6300RA\/6300RB\/5200LA Pneumatic","imgUrl":"https:\/\/img.chinax.com\/nimg\/2e\/f3\/769fe30d6097faec4a7881e9a5c2-200x200-1\/pressure_2f_flow_control_skid_and_koso_valves_with_6300ra_2f6300rb_2f5200la_pneumatic_actuators_with_epa800_2fepb800_cl420_2fcl523.jpg","attrs":{"Brand Name":"KOSO control valve","Model Number":"6300RA\/6300RB\/5200LA","Place of Origin":"Japan","Minimum Order Quantity":"1"}}
{"title":"Pressure \/ Flow Control Skid Clothes And KOSO Valve With 3620R\/3500R\/3500L\/3600R","imgUrl":"https:\/\/img.chinax.com\/nimg\/ed\/eb\/018c902fbf8dc9be4f99ee202124-200x200-1\/pressure_2f_flow_control_skid_clothes_and_koso_valve_with_3620r_2f3500r_2f3500l_2f3600r_2f3600l_2f3620r_2f3620l_solid_state_electr.jpg","attrs":{"Brand Name":"KOSO control valve","Model Number":"koso 3620R\/3620L","Place of Origin":"Japan","Minimum Order Quantity":"1"}}
{"title":"Pressure \/ Flow Control Skid And KOSO Valves CL-420\/CL-523 Lock Valve PRF310","imgUrl":"https:\/\/img.chinax.com\/nimg\/76\/6a\/5f4990611113d5e7c18aa1605b3f-200x200-1\/pressure_2f_flow_control_skid_and_koso_valves_cl_420_2fcl_523_lock_valve_prf310_2fprf400_filter_regulator.jpg","attrs":{"Brand Name":"KOSO control valve","Model Number":"CL-420\/CL-523","Place of Origin":"Japan","Minimum Order Quantity":"1"}}
IMI STI SA CL Electro Pneumatic Positioner 4-20mA Signal Balanced Forces Principle for Harsh Conditions
Product Overview
The IMI STI SA CL Electro-Pneumatic Positioner is a high-performance control device engineered for the precise positioning of pneumatic actuators. Utilizing the sophisticated Balanced Forces Principle, this unit converts a standard 4-20mA electronic input signal into a proportional pneumatic output. It is specifically built to deliver exceptional reliability and stability in the world's most harsh industrial conditions, where vibration, extreme temperatures, and corrosive atmospheres are constant challenges.
Key Features
Balanced Forces Principle: Ensures maximum stability and resistance to mechanical vibrations, providing high-fidelity control even in turbulent environments.
High Precision: Offers superior sensitivity and linearity for critical process control applications.
Rugged Construction: Features a heavy-duty housing designed to withstand extreme temperatures, humidity, and corrosive chemical exposure.
Low Air Consumption: Optimized internal pneumatic circuitry reduces operational costs and air supply demand.
Easy Calibration: Simplified zero and span adjustments allow for quick onsite commissioning and maintenance.
Universal Compatibility: Seamlessly integrates with various linear and rotary pneumatic actuators.
Technical Specifications
Parameters
Specifications
Input Signal
4 - 20 mA DC
Input Resistance
250 ± 15 Ω
Air Supply Pressure
1.4 to 7.0 bar (20 to 100 psi)
Output Pressure
0 to 100% of Supply Pressure
Operating Temperature
-20°C to +80°C (Extended ranges available)
Linearity Error
< ± 1.0% F.S.
Hysteresis
< 0.5% F.S.
Sensitivity
< 0.2% F.S.
Air Connections
1/4" NPT (Standard)
Conduit Entry
1/2" NPT or M20x1.5
Applications
Oil & Gas: Control valves in refineries and offshore platforms.
Power Generation: Damper control and steam turbine systems.
Chemical & Petrochemical: Handling of aggressive fluids and high-pressure reactions.
Marine & Heavy Industry: Systems exposed to salt spray and high mechanical stress.
Pulp & Paper: Accurate consistency control in processing lines.
Frequently Asked Questions
Q1: How does the Balanced Forces Principle benefit my operation?
A: It significantly reduces the impact of external vibrations and fluctuations in air supply pressure, ensuring the valve remains at the exact setpoint without "hunting" or oscillation.
Q2: Is this positioner suitable for outdoor installation in coastal areas?
A: Yes. The SA CL series features a high-grade protective finish and sealed internals specifically designed to resist salt spray and high humidity.
Q3: Can this unit be used with both double-acting and single-acting actuators?
A: The SA CL is primarily designed for high-performance applications and can be configured for various actuator types. Please specify your actuator model when ordering for the correct mounting kit.
Q4: What maintenance is required?
A: Due to its robust design, maintenance is minimal. We recommend periodic inspection of the air filters and checking the supply air quality to ensure long-term reliability.
Related Products
IMI STI YT-1000 Series Electro-Pneumatic Positioners
Pneumatic Linear Actuators (Heavy Duty Series)
Air Filter Regulators (High Flow Capacity)
Smart Valve Positioners with HART/Foundation Fieldbus
Solenoid Valves for Emergency Shutdown (ESD)
Contact Us
For pricing, technical support, or customized mounting solutions, please contact our export department:
