Page 192 - Peter Paul 2019 Catalog

HAZARDOUS LOCATION VALVES
Series EL 50 >> Model EL51
Low Watt Hazardous Location — 2-Way Normally Open Valve
Peter Paul explosion proof valves are used where fire or explosion hazards exist due to the presence of flammable gases or vapors, flammable liquids, combustible dust, or easily ignitable fibers. Hazardous Location valves are recommended, or in some cases compulsory, where a high level of protection from explosion is required.
• Miniature Hazardous Location valves uses less power than E51. • Flame-Proof construction.
• High quality engineering.
Note: This valve also available as an operator. Refer to following page.
OPERATING CONDITIONS
Media: Air and other common gases and common refrigerants except ammonia, city gas supplies by public utilities, Nos. 1 and 2 fuel oils, oils having viscosities not more than 40, SU at 100°F, steam, some hydraulic and water or other aqueous non-flammable liquids. Some media require special seal material. (Series 50 pressure ratings may change due to the viscosity of the liquid.)*
Valve Temperature Range: Standard Valves – 0°F (-18°C) to 104°F (40°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: 4000 PSI
Leakage: Bubble tight for standard valves.
Vacuum: To 5 Microns*
ELECTRICAL CHARACTERISTICS
Coil Voltage: 12 to 240V AC 60 HZ. — 5 to 120V DC
Nominal Power: AC — 1.8 Watts DC — 1.8 Watts
Coil Construction: Molded Class F with third wire ground (Std.), Class H or Potted (Opt.) Typical Response Time on Air: 4 – 16 Milliseconds
Operating Speed: Up to 600 CPM
Duty Cycle: Continuous
MECHANICAL CHARACTERISTICS
DE-ENERGIZED (OFF)
OUT
IN
ENERGIZED (ON)
OUT
IN
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: Flame-Proof construction with 1/2′′ NPT conduit
Listings: Valves are UL listed and CSA certified for Hazardous Locations — Class I, Div 1, Group C and D – Class II, Div 1, Groups E, F, and G; Div 2, Groups C, D, E, F, and G
Life Expectancy: Millions of cycles, depending on application, lubrication, etc.
Valve Weight: 0.65 lbs
Repair Kits: 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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