Gestra

Supplying Pumps, Valves & Seals Automation

Gestra, as a subsidiary company of a worldwide manufacturer, is a recognized world leader in supplying pumps, valves, seals automation and services to the power, oil, gas, chemical and other industries. With more than 14,000 employees in more than 56 countries, they combine their global reach with a local presence.

Specialty Valve & Controls offers a wide range of products form Gestra, contact your Specialty Valve & Control sales representative for more details.

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Gestra Valves

Gestra, as a subsidiary company of Flowserve, is a recognized world leader in supplying pumps, valves, seals automation and services to the power, oil, gas, chemical and other industries. With more than 14,000 employees in more than 56 countries, they combine their global reach with a local presence.  Specialty Valve & Controls offers a wide range of products from Gestra, contact your Specialty Valve & Control sales representative for more details.

The swing check valve is a cost-efficient unit for applications involving liquids, gases and vapours. This range can be supplied in extremely short overall lengths.

Materials: ASTM equivalent Body: DN 50 – 300mm: A105 / A214 Flap: A352 CF 8 MC / A536 GRADE 60-40-18 Dimensions: DN 50-300 Weight: 1kg – 30kg

Features & Benefits:Features & Benefits:

  • Low pressure drop
  • Very short overall length
  • Low opening pressures
  • Minimal valve weight compared to conventional check valves
  • Improved seat tightness due to soft seats
  • Improved seat tightness due to soft seats
  • DN 50 – 100 with universal centring ring

Return temperature control valves are excellent for regulating large heating systems. They ensure a  uniform distribution of hot water throughout the system and prevent insufficient heating or overheating of heat exchangers exposed to the danger of short-circuiting.

The BW’s are directly controlled return temperature control valves which are installed in the return line. They maintain constant return temperatures within their proportional line.

Features & Benefits:

  • Direct acting proportional controller for maintaining constant return
  • Used for regulating large heating systems and tracing systems
  • The valve prevents short-circuiting and automatically balances large systems
  • Straight-through valve with the balanced valve sleeve

Detection and signalization of excessively high or low temperatures. Use in combination with Flowserve GESTRA self-monitoring temperature limiter TRS 5-6 for self-monitoring temperature limitation according to DIN 3440

TRG 5-53, TRG 5-55, TRG 5-57: single TRG 5-54, TRG 5-56, TRG 5-58: double TRG 5-53, TRG 5-54: with protection tube TRG 5-55 to 5-58: with a weld-in protection tube

Features & Benefits:

  • Self-monitoring
  • Self-checking function
  • Highest security
  • Welded and screwed versions available
  • Efficient control of superheated steam

The cooling-water control valves type CW are direct-acting proportional controllers for installation in cooling water or brine return lines. They ensure that the cooling-water outlet temperature is maintained at a preset value, calculated for the process requirements.

When using cooling-water control valves, higher temperatures are possible than with an uncontrolled process. As a result of the larger heat absorption by the cooling water or brine, cooling agent and energy consumption are reduced.

In particular, in new plants where the installation of cooling-water control valves has been planned right from the beginning, capital costs are reduced.

Features & Benefits:

  • Direct acting proportional controller
  • Ensure cooling water is maintained at a preset level
  • Reduced capital costs due to higher discharge temperatures
  • Continuous bleed flow guarantees a sensitive response
  • Size DN 10 to DN 100
  • Size DN 10 to DN 100

The cooling-water control valves type CW are direct-acting proportional controllers for installation in cooling water or brine return lines. They ensure that the cooling-water outlet temperature is maintained at a preset value, calculated for the process requirements.

When using cooling-water control valves, higher temperatures are possible than with an uncontrolled process. As a result of the larger heat absorption by the cooling water or brine, cooling agent and energy consumption are reduced.

In particular, in new plants where the installation of cooling-water control valves has been planned right from the beginning, capital costs are reduced.

Features & Benefits:

  • Direct acting proportional controller
  • Ensure cooling water is maintained at a preset level
  • Reduced capital costs due to higher discharge temperatures
  • Continuous bleed flow guarantees a sensitive response
  • Size DN 10 to DN 100
  • Size DN 10 to DN 100

The URB 1 is a user-friendly control terminal and a display unit for use with Flowserve GESTRA CAN bus systems. With the URB 1, all standard functions of the CAN bus systems can be easily called up and adjusted. The URB 1 uses the CANopen protocol.

Features & Benefits:

  • Secondary Indication of boiler level
  • Supervising utility for boilers
  • Display of all boiler parameters
  • Easy handling
  • Low costs

Automatic, programme-controlled intermittent blowdown of land and marine boilers, in particular, boilers operating without constant supervision in accordance with TRD 604(German regulations concerning the operation of steam boilers). For High-pressure applications up to 1600 psi.

The valves type MPA is provided with a diaphragm actuator suitable for compressed air or pressurized water and a rapid-closing mechanism. The opening pulse is supplied by the automatic intermittent blowdown control unit type TA (cf. datasheet TA). The valves type PA are manually operated and feature a rapid action mechanism.

Features & Benefits:

  • High resistance against wear
  • Immune to pressure impacts and water hammer
  • Long life and availability
  • Quick and easy installation
  • Fully compliant with ASME boiler regulations
  • Fully compliant with ASME boiler regulations
  • Improved blowdown effectiveness

Automatic, programme-controlled intermittent blowdown of land and marine boilers, in particular, boilers operating without constant supervision in accordance with TRD 604(German regulations concerning the operation of steam boilers). For High-pressure applications up to 1600 psi.

The valves type MPA is provided with a diaphragm actuator suitable for compressed air or pressurized water and a rapid-closing mechanism. The opening pulse is supplied by the automatic intermittent blowdown control unit type TA (cf. datasheet TA). The valves type PA are manually operated and feature a rapid action mechanism.

Features & Benefits:

  • High resistance against wear
  • Immune to pressure impacts and water hammer
  • Long life and availability
  • Quick and easy installation
  • Fully compliant with ASME boiler regulations
  • Fully compliant with ASME boiler regulations
  • Improved blowdown effectiveness

Valve with adjustable stage nozzle, sample valve, and electric actuator for automatically controlled continuous blowdown.

Automatically controlled continuous blowdown to reduce blowdown wastage with a GESTRA conductivity electrode and the continuous blowdown controller. The blowdown line is automatically closed on shut-down of the boiler plant.

Especially suited for boilers operating without constant supervision (TRD 604).

Features & Benefits:

  • High blowdown capacity
  • Automization of desalination made easy
  • Enables operation of boilers without constant supervision
  • Use in combination with conductivity probe LRG
  • Size DN 15 up to DN 40
  • Size DN 15 up to DN 40
  • Pressure rating PN 40 up to PN 320

Valve with adjustable stage nozzle, sample valve, and electric actuator for automatically controlled continuous blowdown.

Automatically controlled continuous blowdown to reduce blowdown wastage with a GESTRA conductivity electrode and the continuous blowdown controller. The blowdown line is automatically closed on shut-down of the boiler plant. BAE 210: 175 barg (2540 psig) at 250 %B0C 125 barg (1810 psig) at 400 %B0C BAE 211: 320 barg (4640 psig) at 250 %B0C 292 barg (4235 psig) at 400 %B0C

Especially suited for boilers operating without constant supervision (TRD 604).

Features & Benefits:

  • High blowdown capacity
  • Automization of desalination made easy
  • Enables operation of boilers without constant supervision
  • Use in combination with conductivity probe LRG
  • Size DN 15 up to DN 40
  • Size DN 15 up to DN 40
  • Pressure rating PN 40 up to PN 320

The conductivity sensing electrode LRG 16-40 consists of a TDS (= Total Dissolved Solids) monitoring electrode for conductivity measurement, a temperature sensor for detecting the fluid temperature and a fully integrated conductivity (TDS) transmitter

The probe works together with the LRR 1-40 controller.

Features & Benefits:

  • CANopen protocol
  • Temperature compensated conductivity (TDS)
  • Self-adjusting operation
  • Reliable boiler water control
  • Reduced cabling and installation
  • Reduced cabling and installation

The oil detector/alarm ORGS 11-2 works according to the conductivity measurement principle. The electronic control unit of the ORGS 11-2 is an integral module of its terminal case and controls all functions – external switchgear is therefore not required. A control and alarm unit should be added on downstream of the ORGS 11-2 in order to protect the installations to be cooled and prevent the possibility of oil leakage. The ORGS 11-2 has two channels for true fail-safe confidence

Features & Benefits:

  • Type approval GL 17106-00 HH
  • Compact solution for ships
  • For onshore installations
  • Integrated Sensor and transmitter
  • Reliable supervision of cooling water

In combination with Flowserve GESTRA level switch type NRS 2-4 for indication of high water level and level switch type NRS 2-5 for indication of low water level, at very high pressures and temperatures (up to PN 320, 550 %B0C). Application in draining systems of conventional power stations and high-pressure steam boilers.

Features & Benefits:

  • Works without any moving parts
  • Ceramic tube
  • Level detection under highest pressures
  • Reliable supervision of turbine drain systems

The continuous blowdown controller LRR 1-40 used in conjunction with the conductivity sensing electrode LRG 16-40 constitutes a conductivity (TDS) monitoring and control system. Electrical conductivity is used to measure boiler water TDS (= Total Dissolved Solids).

Features & Benefits:

  • Two conductivity limits with one switchpoint each: TDS high (MAX) alarm and TDS low (MIN) alarm
  • Three-position control within a predefined proportional band
  • TDS level (conductivity) monitored and maintained within a predefined control range
  • Stand-by input
  • 24 h purging pulse for continuous boiler blowdown
  • 24 h purging pulse for continuous boiler blowdown
  • CanBus system protocol

The conductivity transmitter LRGT 16-1 is a compact system consisting of a conductivity sensing electrode, a temperature sensor to measure the fluid temperature and a fully integrated conductivity transmitter. The equipment works with two electrodes according to the conductivity measurement principle and provides a conductivity-dependent measuring current of 4 %u2013 20 mA.

Designed for conductivity monitoring in electrically conductive liquids.

Works in connection with controller KS90

Features & Benefits:

  • Sensor and transmitter in one unit
  • Automatic temperature compensation
  • Self-adjusting operation
  • Reliable boiler water control

Steam Traps

We offer the complete line of steam trap products from Gestra. To be able to operate a plant over a long period with an optimum efficiency the choice of the correct valves is of vital importance. Amongst these valves are steam traps which have an important role to play. Steam must be trapped within heating equipment until it has surrendered all heat energy, at which point the condensate thereby formed must be immediately discharged.

Thermostatic/thermodynamic steam trap with corrosion-resistant regulator unaffected by water hammer. Integral strainer and non-return valve action. Automatic deaeration. Installation in any position.

Nominal pressure: PN 320 / 630 (for further details see data sheet)

Features & Benefits:

  • Waterhammer-resistant
  • Corrosion resistant
  • Easy maintenance and repair
  • Integrated non-return valve
  • Integrated strainer for optimized regulator protection
  • Asbestos-free cover gasket (graphite/CrNi)

Thermostatic/thermodynamic steam trap with corrosion-resistant regulator unaffected by water hammer. Integral strainer and non-return valve action. Automatic deaeration. Installation in any position.

According to ANSI B 16.34

Class 2500

Features & Benefits:

  • Waterhammer-resistant
  • Corrosion resistant
  • Easy maintenance and repair
  • Integrated non-return valve
  • Integrated strainer for optimized regulator protection
  • Asbestos-free cover gasket (graphite/CrNi)

Thermostatic/thermodynamic steam traps with corrosion-resistant regulator unaffected by water hammer. Integral strainer and non-return valve action. Automatic deaeration.Installation in any position.

Nominal pressure: PN 100

Features & Benefits:

  • Waterhammer-resistant
  • Corrosion resistant
  • Easy maintenance and repair
  • Integrated non-return valve
  • Integrated strainer for optimized regulator protection
  • Asbestos-free cover gasket (graphite/CrNi)

Thermostatic/thermodynamic steam traps with corrosion-resistant regulator unaffected by water hammer. Integral strainer and non-return valve action. Automatic deaeration.Installation in any position.

According to ANSI B 16.34

Class 600

Features & Benefits:

  • Waterhammer-resistant
  • Corrosion resistant
  • Easy maintenance and repair
  • Integrated non-return valve
  • Integrated strainer for optimized regulator protection
  • Asbestos-free cover gasket (graphite/CrNi)

Thermostatic/thermodynamic steam traps with corrosion-resistant regulator unaffected by water hammer. Integral strainer and non-return valve action. Automatic deaeration. Installation in any position.

Nominal pressure PN 160

Features & Benefits:

  • Waterhammer-resistant
  • Corrosion resistant
  • Easy maintenance and repair
  • Integrated non-return valve
  • Integrated strainer for optimized regulator protection
  • Integrated strainer for optimized regulator protection
  • Asbestos-free cover gasket (graphite/CrNi)

Thermostatic/thermodynamic steam traps with corrosion-resistant regulator unaffected by water hammer. Integral strainer and non-return valve action. Automatic deaeration.Installation in any position.

According to ANSI B 16.34

Class 900

Features & Benefits:

  • Waterhammer-resistant
  • Corrosion resistant
  • Easy maintenance and repair
  • Integrated non-return valve
  • Integrated strainer for optimized regulator protection
  • Integrated strainer for optimized regulator protection
  • Asbestos-free cover gasket (graphite/CrNi)

Thermostatic steam trap with a corrosion-resistant thermostatic element (Duo stainless steel bimetallic regulator) unaffected by water hammer.

Y-type strainer, non-return valve, and asbestos-free cover gasket (graphite) included as standard. The traps with standard regulator discharge the condensate with virtually no banking-up. Optionally BK45U with an undercooling of approx. 30 K (to utilize the condensate heat in steam tracers).

Field of application: Draining of saturated steam and superheated steam lines and steam tracers. Can also be used for air-venting. Installation in any position. In horizontal pipes, the cover must be on top.

Features & Benefits:

  • Waterhammer-resistant
  • Corrosion resistant
  • Easy maintenance and repair
  • Integrated non-return valve
  • Y-strainer for easy access
  • High efficiency

Thermostatic steam trap with corrosion resistant membrane regulator (thermostatic capsule) unaffected by water hammer. Integral strainer and standard capsule 5N1 for discharge with virtually no banking-up or special capsule 5U1 with an undercooling of approx. 30 K.

Features & Benefits:

  • Very low subcooling
  • Perfect air venting
  • Quick response
  • Various connections possible (for details see data sheet)

Thermostatic steam trap with membrane regulator. Corrosion-resistant thermostatic capsule unaffected by water hammer. Integral Y-type strainer and non-return valve. Asbestos-free cover gasket (graphite/CrNi). Installation in any position. The traps with standard capsule N discharge the condensate with virtually no banking-up, the traps with special capsule U with a subcooling of approx. 30K. MK 45-1 with tandem seat, MK 45-2 with a single seat

Materials: ASTM Body/cover: A 105 Cover Screws: A 193 B 7* DIN reference Body/cover: 22.8 (1.0460); Cover Screws: 24 CrMo 5 (1.7258) Membrane: Hastelloy Capsule: Stainless steel %09 Dimensions: DN 15 – 25 Connections: Flanges: DIN, PN 40, BS 10, tables E, F, H and J; ANSI,(BS 1560) classes 150 or 300 Screwed sockets(BSP or NPT (API)); Socket-weld ends; Butt-weld ends Weight:%094.8kg

Features & Benefits:

  • Very low subcooling
  • Perfect air venting
  • Quick response
  • Pressure ratings up to PN 40

Thermostatic steam trap with membrane regulator. Corrosion-resistant thermostatic capsule unaffected by water hammer. Integral Y-type strainer and non-return valve. Asbestos-free cover gasket (graphite/CrNi). Installation in any position. The traps with standard capsule 5N1 discharge the condensate with virtually no banking-up, the traps with special capsule 5U1 with a subcooling of approx. 30K. MK 45-1 with tandem seat, MK 45-2 with a single seat

Materials: ASTM Body/cover: A182F316L Cover Screws: A 193 B 7* DIN reference Body/cover: 1.4404 Cover Screws: A2-70 Membrane: Hastelloy Capsule: Stainless steel

Dimensions: DN 15 – 25

Features & Benefits:

  • Very low subcooling
  • Perfect air venting
  • Quick response
  • Pressure ratings up to PN 40
  • Stainless steel Body for aggressive or sensitive surrounding