SF6 recovery equipment AGRU-4

SF6 recovery equipment AGRU-4

This SF6 recovery unit is specially designed to serve small volume SF6 equipment. With this unit you can perform all the processes necessary for SF6 maintenance. The equipment is designed to recover, temporarily store, condition and provide SF6 gas. The equipment is designed for field use in insulated metal-clad switches, bus ducts and individual switches. The AGRU-4 SF6 Gas Handling Equipment is fully assembled on two heavy duty wheels, which are sufficiently reinforced to minimize vibrations. The trolley is completed with an eyebolt, hose with hook and power cable.

Features

• Storage capacity: 22.7 kg
• Vacuum capacity: (optional upgrade)
• • 10 m3/h (60Hz - 110V) → 17 m3/h
• • 8,5 m3/h (50Hz - 220V) → 14 m3/h
• Evacuation pressure < 0.67 mbar
• Weight: 225 lbs - 103 Kg
• Dimensions: 46''x22''x24'' - 1170x560x610 mm - (H x W x L)
• Optional:
• • Heater and/or Insulating blanket for tank
• • Stainless steel pipes and hoses

Functions:

• SF6 gas recovery, purification and storage from the breaker to the storage tank

Evacuation:

• Hoses < 1.33 mbar
• Handling trolley SF6 < 0.67 mbar
• Air and humidity of the switch < 0.67 mbar
• Purification of the SF6 gas is achieved by recirculating it through the filter system:
• (D1) - Dry Filter - Contains activated alumina to aid in the drying and purification of SF6
• (P1) - Purification Filter - Contains a 13x molecular sieve to remove arches from the product
• (F1) - Particle Filter - Will filter out all material particles below 0.1µm
• Recharge pressure of SF6 gas from storage tank to regulated switch
• Evacuation of SF6 gas from handling equipment to an external storage tank for maintenance purposes

Characteristics:

• Mounted on a cart with 250mm (10" ) tires for easy movement
• Very easy to handle - only two valves to change and operate in the different modes
• High pressure, oil-free, directly controlled compressor with a 1000:1 compression ratio (capable of 1000psi - 69 bar)
• Capable of storing liquefied SF6 gas (50lbs.@60ºF / 22.7 kgs.@15.5 ºC)
• Purifies, dries and filters down to 0.1 µm during recovery and re-pressurization
• Easy filter replacement without disconnecting any tubes or using any special tools
• Auxiliary connections allow storage of infinite amounts of gas using external tanks
• Includes 9.8ft / 3m hose and power cord
• Moisture indicator changes color to indicate gas humidity

Applications:

• Recover and purify SF6
• Evacuate air and moisture before refilling
• Can be used with SF6 cylinders
• Storage of SF6 in liquid form in the storage tank or in auxiliary bottles
• Regulated SF6 filling
• SF6 purification (removal of particles, moisture and products from SF6 decomposition).

  AGRU-4 Specifications
  Type	Portable SF6 Gas Recovery Unit
  Physical specifications	21-1/2" (546 mm) Width x 23" (585 mm) Length x 46" (1,168 mm) // 225 lbs. (102 kgs.)
  Food	120Vac/60Hz - 220Vac/50Hz - other configurations available (choose when ordering)
  SF6 Compressor	A single stage, oil-free, high pressure compressor with direct drive - up to 1,000 psig (69 bar). Motor 0.24kW, 3550 rpm. Metal valve
  Suction pressure regulator	One suction pressure regulator, brass body, 0-30 psig (0-2 bar) spring
  Equalization circuit	An equalisation circuit, allows the compressor to be restarted by high pressure
  Check valve	A brass check valve prevents high pressures from returning to the compressor when operating at low equalization pressures
  Condenser	A high-efficiency, 4-step, ventilated SF6 condenser assists in the liquefaction of SF6 for high ambient temperatures
  Discharge pressure	A discharge pressure switch automatically cuts off when the maximum permissible pressure is reached.
  Vacuum pump	Engine: 0.37 kW, 1750 RPM, TEFC electric motor Displacement: Sealing pressure: 20 µmHg (0.03 mbar) Pump also includes: check
  Storage tank	Volume: 1215 cubic inches. - 0.02 m3 Designed for: 500 PSIG (35 bar), 250ºF (121ºC) In accordance with: Manufactured and labelled for ASME section VIII Div. 1 High liquid level circuit breaker when 50lbs.@60ºF / 22.7 kgs.@15.5 ºC The tank also includes: relief valves and inlet/outlet valves
  Filters	(D1) - Dry Filter - Contains activated alumina to aid in the drying and purification of SF6 (P1) - Purification Filter - Contains a 13x molecular sieve to remove arches from the product (F1) - Particle Filter - Will filter out all material particles below 0.1µm
  Valves	Designed for pressure, temperature and flow. Teflon sealed bronze body, quarter turn
  Pressure gauges	One for suction pressure (composite) One for the discharge pressure One for pressure regulation
  Vacuum gauge	0-30"Hg (0 -1 bar) for Vacuum System
  Pressure regulator	A pressure regulator, brass body, 0-100 psig (0-6.9 bar) spring, allows safe regulated filling of SF6
  Hoses	Two heavy-duty rubber hoses: 1/4" (6 mm) ID X 10 Ft (0.91 m) Long, complete with self-sealing quick-connect fittings Hoses are suitable for system pressure, temperature and flow
  AGRU-4 Upgrades and Optional Accessories
  Stainless steel pipe	Unit can be supplied with stainless steel pipe instead of standard copper pipe
  Stainless steel hoses	Unit can be supplied with stainless steel hoses instead of rubber hoses
  Vacuum gauge - 40 torr (53mbar)	A high precision barometric vacuum gauge can be supplied with the unit to measure the vacuum when the equipment is drying
  Storage tank heater	300 W storage tank heater. Heater comes with its own power cord and a thermostat pre-set at 125°F (52°C) and is protected from overheating by a temperature cut-off. The heater maintains a uniform temperature for a constant positive pressure, allowing the filling process to be accelerated
  Insulating blanket for the storage tank	The storage tank insulation blanket helps keep the storage tank warm which will improve the filling process
  DN-8 style connections	Unit can be supplied with DN-8 style connections on both the equipment and the hoses
  Increased hose length	Unit can be supplied with 6m of hose instead of 3m
  AGRU-4 Consumables
  Filter D-1	Dry filter - recommended to be changed every 50 hours of compressor operation
  Filter P-1	Filter Purification - recommended to be changed every 50 hours of compressor operation
  Filter F-1	Particle filter - recommended to be changed every 50 hours of compressor operation
  Vacuum pump oil	The oil in the vacuum pump has to be checked every time it is switched on. Available in two sizes: 946 ml or 3780 ml