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Jefferson Combustion Valves

Solenoid valves for combustible gases:

1330 / 2030, 1332, 1388 and 2088 Series valves are especially designed to comply with the Resolutions, Regulations and Recommendations for the use of Natural Gas in Industrial Installations. They may be used with other gases, such as GLP, propane, manufactured gas, etc., as well as with air or any other noncombustible neutral gas. Maximum operating pressure for normally closed 1330/2030 series diaphragm valves, when applied as safety valves in natural gas burners, is 0.160 kg/cm2.

For normally open valves, it’s 0.5 kg/cm2  with regular diaphragm  and 2 kg/cm2 with reinforced diaphragm. 1330 / 2030 Series Normally Closed diaphragm valves are optionally provided with adjustable slow openings up to 10 sec.
 
1388 series valves include a system that allows them to open in two stages, the rst of which is quick and with
adjustable opening percentage, and the second is time adjustable up to > 20 seconds.

1330 / 2030, 1332, 1388 and 2088 Series are optionally provided with microcontacts for proof of closed valve.
2088 Series is provided with a power-rectier-controller that makes it possible for the valve to open at max. coil power, and after 90 sec. to come down to 16% of nominal value, that is, starting at 50 W and down to 8 W after 90 sec. The benets over conventional systems are, safe opening, low power consumption, low working temperature and longer coil life.

Thermoelectric Gas Safety Valves

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Construction characteristics
  • Injected aluminum body.
  • Seats: Buna N.
  • Interior: brass, stainless steel.
  • BSP or NPT 3/4” connections.
  • BSP or NPT 1/8” pilot connection.
  • Maximum torque: 30 Nm ( 22 lb.ft ).
  • Thermocouple connection: M9 x 1.
  • Maximum torque: 4 Nm (3 lb.ft)

Technical characteristics

  • No minimum pressure to operate.
  • Opening time: 5 seconds.
  • Cut off time due to lack of flame: < 1 second.
  • Observations:
  • Cut off time due to lack of flame depends on valve +
  • thermocouple assembly, which should be: < 45 sec.

Additional features
Standard thermocouples: 16”, 24” and 47” (400, 600, 800, 1200 and 2000 mm)



Additional Information:

  • Item Code: V171
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Slow Opening Quick Shutoff Gas Solenoid Valve

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Slow Opening Quick Shutoff Gas Solenoid Valve
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Product Details:
Size1/2 inch - 2 inch
Brandgeca, jefferson

Main characteristics :
Normally closed.
  • Direct acting. No minimum differential pressure to operate.
  • Low and high pressure versions.
  • Injected or cast aluminum body.
  • BSP or NPT threaded connections.
  • Buna “N” seats.
  • Class H coils with internal use housings.
  • For 240V and 110V: current rectifier and transient reactive over voltage suppressor included
  • Quick or two-stage opening.
  • Both are adjustable.
  • 1º stage: Quick opening from 0 to 80% of the total
  • adjustable stroke.
  • 2º stage: Adjustable slow opening up to 20 seconds, from the end of stage 1, up to full stroke. Shutoff in less than one second.
  • Optional: micro contact for closed valve verification.

Application

•Low and high pressure gas combustion equipment.
•Low and medium pressure air or other neutral gases.
•They comply with the resolutions, regulations and
recommendations for the use of natural gas in
industrial installations.


Additional Information:

  • Item Code: 1388
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Natural Gas Solenoid Valve

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Product Details:

MaterialAluminium
MediaGas
Valve Sizequarter inch - 2 inch
Pressureas per requirement
Brandjefferson , geca
Temperature of MediaNormal Temperature

Main characteristics
  • No minimum differential pressure to operate.
  • Low and high pressure versions.
  • Injected or cast aluminium body.
  • BSP or NPT threaded connections.
  • Buna N interior and seals.
  • Class H coils with internal use housings.
  • Electric connector for shielded cable with strain relief or threaded connection for 1/2” NPT pipeline.
  • Size: 1" to 2" BSP



Additional Information:

  • Item Code: 2088

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Gas Solenoid Valve

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Product Details:

Brandjeferson, geca
Sizequater - 3 inch

Main characteristics:
  • Normally closed and Normally open.
  • Direct acting or pilotoperated versions.
  • Size: 1/2" to 2"
  • Pressure: 0 to 2 bar
  • Injected aluminium body. Stainless steel or aluminium die-cast bonnet.
  • BSP or NPT threaded connections. Buna “N” seats and diaphragm.
  • Encapsulated coil. DIN 43650 Connection. IP65 and NEMA 4 Protection.
  • Quick or slow opening adjustable up to 10 sec. Closure in less than 1 second.
  • Optional:microcontact for closed valve verification.



Additional Information:

  • Item Code: 1330-2030

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Manual Reset Safety Gas Valve

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Product Details:

Size1/2 inch - 4 inch
BrandGeca

Main characteristics:
Normally closed. Direct acting. No minimum differential pressure to operate.
“Free handle” system, i.e., it closes automatically when current is cut off and opens manually
when the electric signal is on.
Injected or cast aluminium body.
DIN 43650 Connection encapsulated coils.
Acryl-nitryl seat.
IP65 and NEMA 4 Protection.
Closed or open valve viewer.
360º Rotating housing.
Response time < 50 milliseconds.

Options:
• Energized coil indicator light.
• Weather proof coils and housings.
• Explosion and / or weather proof coils and housings.
• Closed valve verication



Additional Information:

  • Item Code: 1332

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