Omega SV290 Specification

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2-WAY ANTI-WATERHAMMER SOLENOID VALVES
SV290 Series
U Durable Brass
Valve Body
U Adjustable Closing Time U Rugged NEMA 4 (IP65)
Housing
TYPICAL APPLICATIONS
U Water Treatment U Irrigation U Cooling U Car Washing Equipment U Petroleum Processing U Dish and Bottle Washing
The SV291 and SV292 valves are 2-way, pilot operated, anti­waterhammer, and normally open. These valves are designed to reduce or control waterhammer, which typically occurs with incompressible fluids when the closing of a valve creates a sudden change of the fluid velocity. Restriction of the pilot flow in these valves will prevent them from slamming closed. Valve and piping system life is enhanced since the noise, vibration, and shock of waterhammer are reduced.
Where small flows (CV <3.0) at relatively low pressure differentials are present, the waterhammer is eliminated by the fixed restriction of
the pilot flow. This is the standard design for the industry. However, to reduce waterhammer in high­flow applications, a unique field adjustment device can effectively control the waterhammer in an application. The closing time on these valves can be adjusted by a 4-position selector. Position 1 allows the fastest closing, position 4 the slowest.
SV292 shown actual size.
SPECIFICATIONS
Operation: Pilot operated Wetted Parts: Brass, stainless steel,
copper, and seal
Medium: Liquid or gases Max Static Pressure: 5 times max psid Ambient Temp: -9 to 50°C
(15 to 122°F)
Mounting: Pipe mounting, any direction Power: 10 W, 120 Vac, Class F
L-41
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PILOT-OPERATED, NORMALLY OPEN, BRASS VALVE BODY, 2-WAY ANTI-WATERHAMMER SOLENOID VALVES
SV291 and SV292
70.1
(2.76)
49.5
IN
(1.95)
P
H
OUT
E
L
C
NORMALLY CLOSED NORMALLY OPEN
W
IN
OUT
Port Identification: Flow arrow
on body indicates flow direction—
ports are not marked.
IN
OUT
Dimensions: mm (inch)
VALVE
H P C L W
SV291 120.7 (4.75) 98.0 (3.86) 72.1 (2.84) 100.1 (3.94) 69.9 (2.75) SV292 120.7 (4.75) 98.0 (3.86) 72.1 (2.84) 100.1 (3.94) 69.9 (2.75)
To Order
NPT MODEL NO. FITTING ORIFICE Cv SEAL MIN MAX °C °F OPEN CLOSE
SV291 SV292 1 1" 12.5 Buna-N 5 230 85 185 100 to 250 ms 0.5 to 4.5 s
Comes complete with operator’s manual.
ACCESSORIES
MODEL NO. DESCRIPTION
SVCOIL-110AC Replacement coil, 110 Vac SVCOIL-220AC Replacement coil, 220 Vac SVCOIL-24VDC Replacement coil, 24 Vdc
Note: Some solenoid valves are available with 24 Vdc coils. Five piece minimum order. UL approval is not available with 24 Vdc coils. Specifications effected; pressure ratings may decrease; coil wattage ratings may increase. Consult Engineering.
Ordering Examples: SV291, 2-way, anti-waterhammer, pilot-operated, brass body NO valve with SV292, 2-way, anti-waterhammer, pilot-operated, brass body NO valve with 1 NPT fitting and Buna-N seal.
3
⁄
4
3
" 9.6 Buna-N 5 230 85 185 100 to 250 ms 0.6 to 4.5 s
⁄
4
DIFF PRES
(psid)
TEMP RESPONSE TIME
3
NPT fittings and Buna-N seal.
⁄
4
L-42
VALVES AND REGULATORS
L
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