Supply systems and accessories

CHETRA supplies the appropriate accessories for your mechanical seal.
We offer everything from small standard parts to complex individual applications.
Thermosiphon system
Plan 52,53A

CHETRA thermosiphon system provides leakage compensation and cooling of the mechanical seal.
Circulation is by the thermosiphon principle or forced circulation by means of a circulation pump or conveyor system.

Level and pressure monitoring (Plan 53A) prevents dry running and monitors (product) leakage.

Versions:

  • Available with dished ends and straight ends
    6L, 9L and 12L and with different pressure levels
  • Instrumentation according to customer and process requirements
  • Standard container made of 1.4571 with borosilicate glass
  • Sterile version for pharmaceutical and food industries
  • Individual material combinations, instrumentation and designs
  • DGRL/PED 2014/68/EU – ASME approval on request
Thermosiphon system API PLAN 52,53A
Plan 52,53A
  • API 682 4th Ed.
  • Plan 52,53A
  • Individual design upon customer request

The CHETRA thermosiphon system provides leakage compensation and cooling of the mechanical seal.
Circulation is by the thermosiphon principle or forced circulation by means of a circulation pump or conveyor system.

Level and pressure monitoring (Plan 53A) prevents dry running and monitors (product) leakage.

Suitable for oil & gas, petrochemical industry, chemical industry and refinery.

Versions:

  • API 682 4th Ed.
  • DGRL/PED 2014/68/EU – ASME approval on request
  • Customized versions
Loop systems
API - Plan 53B
  • API 682 4th Ed.
  • Plan 53B
  • Individual design upon customer request

The CHETRA Loop System ensures permanent pressure superposition of double-acting mechanical seals. A pre-tensioned bubble accumulator provides the pressure in the sealing medium as well as leakage compensation.

The cooling of the sealing medium is done by finned tube or water tube coolers. The continuous pressure and temperature monitoring by modern measuring technology guarantees an improvement of the service life.

Especially suitable for oil & gas, petrochemical industry, chemical industry and refinery.

The CHETRA loop systems are TA-Luft compliant.

Versions:

  • API 682 4th Ed.
  • Customized designs
  • DGRL/PED 2014/68/EU – ASME approval on request
Pressure intensifier
API - Plan 53C
  • API 682 4th Ed.
  • Plan 53C
  • Individual design upon customer request

The CHETRA pressure intensifier ensures the permanent pressure superimposition of double-acting mechanical seals even at very high pressures.

The automatic adjustment of the sealing pressure is done by a pulse line. This also compensates for larger pressure fluctuations.

Cooling of the sealing medium is done by finned tube coolers or water coolers. The constant pressure and temperature monitoring by modern measuring technology guarantees an improvement of the service life.

Especially suitable for oil & gas, petrochemical industry, chemical industry and refinery.

The CHETRA pressure intensifier is TA-Luft compliant.

Versions:

  • API 682 4th Ed.
  • Customized designs
  • DGRL/PED 2014/68/EU – ASME approval on request
Quench tank
Plan 51
  • API 682 4th Ed.
  • Plan 51
  • Individual design upon customer request

With the CHETRA quench tank, single-acting mechanical seals can be operated dead-ended. A suitable quench medium prevents the product from escaping to the atmosphere.

Level monitoring by level switch and sight glasses.

Versions:

  • 3L, 5L and 8L
  • Instrumentation according to customer and process requirements
  • Standard vessels made of 1.4301 with borosilicate glass

Customized material combinations, instrumentation and designs specifically according to customer requirements can be developed by our qualified technical personnel.

Leak detection system
Plan 65
  • API 682 4th Ed.
  • Plan 65
  • Individual design upon customer request

The CHETRA leak detection system is used to collect leakage from the mechanical seal.

The amount of leakage is monitored by a level transmitter.

Especially suitable for oil & gas, petrochemical industry, chemical industry and refinery.

Versions:

  • According to API 682 4th Ed.
  • Integrated orifice in the piping (65A)
  • Customized designs can be made according to the customer’s requirements
  • Approval: DGRL/ PED 2014/68/EU – Construction according to ASME on request
Replenishment unit
Plan 54
  • API 682 4th Ed.
  • Plan 54
  • Individual design upon customer request

Up to 25 loop systems can be supplied with the replenishment unit type 600LS.

Complete remote monitoring by pressure transmitter and level switch.

The replenishment is completely automatic. Automatic ball valves are installed on the loop systems and open when the pressure drops. The replenishment unit pumps barrier medium from a 600L unpressurized tank into the make-up lines. These are kept at a constant pressure by a bubble accumulator. In the event of a pressure drop in the makeup lines, e.g. due to increased makeup at the loop systems, one of the pumps automatically switches on and fills the makeup system until the specified pressure is built up again in the lines.