INSTRUCTION MANUAL
SA/CL
_____________________________________________________________________________________
STI S.r.l.
– Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com
Manual 4014
– rev.04 04/2015 – SA/CL
-
5 -
Technical features
If the positioner is not coupled to STI actuators, some features might be varied.
Standard materials
Positioner’s body
Anodized aluminum
Covers
Die-cast aluminum
Cam
Carbon steel
Spool valve
Brass / Stainless steel
Diaphragm
Epichlorohydrin
Manifold
Anodized aluminum
Connections
Supply and output signals
1/4” NPTF
(1/2” NPTF for SA/CL1-1/2”)
Pressure gauges
1/8” NPTF
Signal
1/4” NPTF
Connections between actuator and positioner
SA/CL-2
(ND ¼”)
1/4” for pipe ND 6x8 mm
SA/CL-1-1/2
(ND ½”)
1/2” for pipe ND 13x15 mm
Air supply
Max. 665 kPa (100 psig / 7 bar)
Operating temperature
-20°C / +70°C (- 4°F / +158°F)
(-40°C / +70°C and -20°C / +85°C available on request)
Storage temperature
- 40°C / + 70°C (- 40°F / + 194°F)
Standard cam
Linear (quadratic available on request)
Standard signal
20÷100 kPa (3÷15 psig / 4÷20 mA)
Min. stroke
70 mm
Zero setting
± 10% of the stroke
Range setting
± 10% of the stroke
Sensitivity
0,25% of signal range
Linearity
1% of the stroke (direct action)
Static consumption
1,02 Nm3/h (0,6 SCFM) at 400 kPa (60 psi)
Capacity
25 Nm
3
/h (15 SCFM) with SA/CL-
2 (ND ¼”)
61 Nm
3
/h (37 SCFM) with SA/CL-1-
1/2” (ND ½”)
Options
Electro-pneumatic transducer
– Side mounted electronic position
transmitter
– Pressure gauges – Special painted for installation in
corrosive environments
Weight
2,3 kg (for standard execution and cam excluded)