Pneumatic equipment should be maintained only by persons
trained and experienced in such equipment.
Supply Clean Air.
Foreign material lodging in valves is a major
cause of breakdowns. The use of a 5-micron rated air filter
located close to the valve is strongly recommended. The filter
bowl should be drained regularly, and if its location makes draining
difficult, the filter should be equipped with an automatic drain.
Check Lubricator Supply Rate.
A lubricator should put a fine
oil mist into the air line in direct proportion to the rate of air flow.
Excessive lubrication can cause puddling in the valve and lead
to malfunctions. For most applications an oil flow rate in the
lubricator of one drop per minute is adequate.
Compatible Lubricants.
Although this valve does not require air
line lubrication, it may be used with lubricated air being supplied
to other mechanisms. Some oils contain additives that can
harm seals or other valve components and so cause the valve
to malfunction. Avoid oils with phosphate additives (e.g., zinc
dithiophosphate), and diester oils; both types can harm valve
components. The best oils to use are generally petroleum base
oils with oxidation inhibitors, an aniline point between 180°F
(82°C) and 220°F (104°C), and an ISO 32 or lighter viscosity.
Some compatible oils are listed at the right. These oils, although
believed to be compatible, could change without notice because
manufacturers sometimes reformulate their oils. Therefore, use
oils specifically compounded for air line service. If it is a synthetic
oil, contact the oil manufacturer for compatibility information.
Cleaning the Valve.
If the air supplied to the valve has not been
well filtered, the interior of the valve may accumulate dirt and
varnish which can affect the valve’s performance.
A schedule should be established for cleaning all valves, the
frequency depending on the cleanliness of the air being supplied.
To clean the valve use any good commercial solvent. Do not
scrape varnished surfaces. Also do not use chlorinated solvents
or abrasive materials. The former damages seals, and abrasives
can do permanent damage to metal parts. Before reassembling
the valve, lubricate all sliding surfaces with a grease such as
Dow Corning BR-2.
Electrical Contacts.
In the electrical circuits associated with
the valve solenoids, keep all switches or relay contacts in good
condition to avoid solenoid malfunctions.
Replace Worn Components.
After long usage dynamic seals
may show signs of wear. The valve can be reconditioned with
the use of ROSS service kits.
See page 3 for information about such kits.
COMPATIBLE LUBRICANTS
Maker
Brand Name
Amoco
American Industrial Oil 32;
Amoco Spindle Oil C; Amolite 32
Citgo
Pacemaker 32
Exxon
Spinesstic 22; Teresstic 32
Mobil
Velocite 10
Non-Fluid Oil
Air Lube 10H/NR
Shell
Turbo T32
Sun
Sunvis 11; Sunvis 722
Texaco
Regal R&O 32
Union
Union Turbine Oil
2
ROSS
CONTROLS
®
IMPORTANT NOTE:
Please read carefully and thoroughly all the
WARNINGS
and
CAUTIONS
on page 4.
VALVE SPECIFICATIONS
VALVE MAINTENANCE
Construction Design
Poppet
Mounting Type
Base
Flow Media
Filtered air
Construction Material
Valve Body:
Bar Stock Aluminum
Spool:
Aluminum & Stainless Steel
Seals:
Buna-N
Pressure Controlled Valves
Temperature
Ambient/Media:
Standard Temp:
40° to 175°F (4° to 80°C)
High Temp:
40° to 220°F (4° to 105°C)
For other temperature ranges, consult ROSS.
Pilot Supply
Internal
Operating Pressure
Vacuum to 150 psig (10 bar)
Pilot Supply - External:
30 to 150 psig (2 to 10 bar)
Pilot supply pressure must be equal to or greater than
inlet pressure.
Solenoid Pilot Controlled Valves
Solenoids
Rated for continuous duty
Voltage
24 volts DC; 110-120 volts AC, 50/60 Hz
Power Consumption
(each solenoid)
6 watts on DC; 11 VA inrush, 8.5 VA holding on 50 or 60 Hz
Enclosure Rating
IP65, IEC 60529
Electrical Connections
EN 175301-803 Form A connector
Temperature -
Ambient
Standard Temp:
40° to 120°F (4° to 50°C)
High Temp:
40° to 175°F (4° to 80°C)
Temperature - Media
Standard Temp:
40° to 175°F (4° to 80°C)
High Temp:
40° to 220°F (4° to 105°C)
For other temperature ranges, consult ROSS.
Pilot Supply
Internal or External; Selected automatically
Operating Pressure
Vacuum to 150 psig (10 bar)
Pilot Supply - Internal or External:
ISO Size 1:
Minimum 30 psig (2 bar)
ISO Size 2 & 3:
Minimum 15 psig (1 bar)
When external pilot supply, pressure must be equal to
or greater than inlet pressure.
Manual Override
Flush; Metal, non-locking
