Page 178 - Peter Paul 2019 Catalog

HAZARDOUS LOCATION VALVES
Series 50 ELW >> Model ELW51 Encapsulated Low Wattage Hazardous Location —
2-Way Normally Open Valve
A UL and CSA listed, low watt, miniature hazardous location valve with minimal space and energy requirements in volatile environments. Air and other fluids compatible with standard Buna seals. Hot water, steam, gasoline, oils, some hydraulic fluids, and many other media require special seal materials.
• Smallest hazardous location solenoid valve.
• Best ambient and high temperature ratings on the market. • NEMA 4 rating is standard with encapsulated coil.
Note: This valve also available as an operator. Refer to following page.
OPERATING CONDITIONS
Media: Air and other fluids compatible with standard Buna seals. Hot water, steam, gasoline, oils, some hydraulic fluids, and many media require special seal materials. (Series 50 pressure ratings may change due to the viscosity of the liquid.)*
Valve Temperature Range: Standard Valves – 0°F (-18°C) to 140°F (60°C) ambient;
0°F (-18°C) to 150°F (65°C) media. Optional Valves – can tolerate much higher or much lower ambient and media temperatures.*
Maximum Operating Pressure Differentials: See table on proceeding page. Burst Pressure: 5000 PSI
Leakage: Bubble tight for standard valves.
Vacuum: To 5 Microns*
ELECTRICAL CHARACTERISTICS
Coil Voltage: 12 to 370V AC 60 HZ. and 10.5 to 345V AC 50 HZ. — 3.5 to 120V DC Nominal Power: AC — 1.8 Watts DC — 1.8 Watts
Coil Construction: Encapsulated Class F Coil with third wire ground
Typical Response Time on Air: 4 – 16 Milliseconds
Operating Speed: Up to 600 CPM Duty Cycle: Continuous
MECHANICAL CHARACTERISTICS
Body: Stainless Steel (Std.)
Internal Components: Stainless Steel
Elastomers: Nitrile (Buna) (Std.). Many other elastomers available.* Orifice Diameter: See table on proceeding page.
Porting: 1/8′′ NPT (Std.)
Housing: Encapsulated with 1/2 NPT conduit
DE-ENERGIZED (OFF)
OUT
IN
ENERGIZED (ON)
OUT
IN
Listings: Valves are UL listed for Hazardous Locations — Class I, Div 1, Groups A, B, C, and D – Class II, Div 1, Groups E, F, and G; Div 2, Groups A, B, C, D, E, F, and G. “T” Rating as low as T5.
Life Expectancy: Millions of cycles, depending on application, lubrication, etc.
Valve Weight: 0.60 lbs
Repair Packs: See table on proceeding page.
Options: Alternate Port Locations, Metering, Alternate Elastomers, All Stainless Steel Construction*
* Consult representative or factory for options and specifications.
IN
OUT
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