GESTRA AG
Company Overview & Product Portfolio (Steam & Fluid Control Systems)
1. Company Overview
GESTRA AG is a globally recognized German manufacturer specializing in steam, condensate, and industrial fluid control systems. Founded in 1902 and headquartered in Bremen, Germany, the company has more than a century of experience in optimizing steam system performance and energy efficiency.
GESTRA is widely regarded as a technology leader in steam engineering, providing high-quality valves, control systems, and boiler equipment for industrial applications.
The company is now part of the Spirax Sarco Group, strengthening its global presence and engineering capabilities.
2. Core Business Areas
GESTRA focuses on the following technical fields:
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Steam system optimization
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Condensate management
-
Boiler control and safety systems
-
Industrial fluid control technology
-
Energy efficiency solutions
Their solutions are designed to:
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Improve productivity
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Increase system reliability
-
Reduce energy consumption
-
Enhance operational safety
3. Main Product Categories
GESTRA provides a comprehensive portfolio of products for steam and fluid systems:
3.1 Steam Traps (Condensate Removal Systems)
Steam traps are essential for removing condensate while retaining steam.
Types
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Thermostatic steam traps (BK series)
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Thermodynamic steam traps (DK series)
-
Automatic drainage valves (AK series)
-
Modular drainage systems (QuickEM series)
Function
-
Remove condensate efficiently
-
Prevent energy loss
-
Maintain system efficiency
These products ensure that steam systems operate at peak performance.
3.2 Control Valves
GESTRA offers a wide range of control valves for steam, water, and other fluids.
Types
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General-purpose control valves
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Cooling-water control valves
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Pressure regulators
-
Temperature regulators
-
Return temperature control valves
Features
-
Precise pressure and temperature control
-
High reliability
-
Suitable for harsh industrial environments
Control valves are widely used to regulate process conditions such as flow, pressure, and temperature.
3.3 High-Pressure Control Valves (Severe Service)
Designed for demanding industrial conditions.
Example Series
-
ZK-type high-pressure control valves
Features
-
Zero leakage
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High differential pressure resistance
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Multi-stage trim design
-
Long service life
Applications
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Power plants
-
Oil refineries
-
Chemical plants
These valves ensure maximum system uptime and safety in critical processes.
3.4 Check Valves (Non-Return Valves)
Prevent reverse flow in pipelines.
Types
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Dual-plate check valves
-
Wafer-type spring check valves
-
Swing check valves
-
Gravity circulation check valves
Applications
-
Steam systems
-
HVAC
-
Industrial pipelines
Check valves protect equipment and improve system reliability.
3.5 Boiler Control Systems (Boilerhouse Equipment)
GESTRA provides complete boiler automation and safety systems.
Product Systems
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Level control systems
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Level limiters (SIL-certified)
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Temperature limiters
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TDS (blowdown) control systems
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Boiler monitoring systems (SPECTORcontrol)
Function
-
Monitor boiler conditions
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Ensure safe operation
-
Optimize efficiency
These systems are essential for modern steam plants.
3.6 Isolation Valves & Strainers
Products
-
Shut-off valves
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Strainers
-
Blowdown valves
Function
-
Isolate process flow
-
Protect equipment from contamination
These components are key to maintaining system integrity.
3.7 Industrial Electronics & Monitoring
GESTRA also offers advanced monitoring systems:
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Level sensors
-
Turbidity detectors
-
Oil contamination monitoring
-
Steam trap monitoring systems
These solutions improve plant transparency and predictive maintenance.
3.8 Complete Steam System Solutions
GESTRA provides integrated system solutions:
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Steam generation systems
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Condensate recovery systems
-
Energy optimization solutions
-
Boiler automation systems
These solutions combine valves, sensors, and control systems into a complete package.
4. Product Classification Summary
| Category | Function |
|---|
| Steam Traps | Condensate removal |
| Control Valves | Flow / pressure / temperature control |
| Check Valves | Prevent backflow |
| Boiler Systems | Monitoring & safety |
| Isolation Valves | Flow shut-off |
| Industrial Electronics | Monitoring & automation |
| System Solutions | Complete steam system integration |
5. Key Technical Advantages
1. Energy Efficiency
Designed to reduce steam loss and improve system performance.
2. Safety
High-reliability components ensure safe operation in critical systems.
3. Durability
Products are built for long-term industrial use.
4. Precision Engineering
German design ensures high control accuracy.
5. System Integration
Compatible with modern industrial automation systems.
6. Industry Applications
GESTRA products are widely used in:
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Power generation
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Oil & gas
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Chemical industry
-
Food processing
-
HVAC systems
-
Industrial manufacturing
Steam systems are fundamental in these industries for heat transfer and process control.
7. Market Position
GESTRA is:
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A global leader in steam system engineering
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A specialist in valves and control systems
-
A key supplier for energy-efficient industrial solutions
Its products are trusted worldwide for reliability, efficiency, and safety.
GESTRA Boilerhouse Systems
Product Overview & Technical Solutions
1. Overview of Boilerhouse Solutions
GESTRA Boilerhouse solutions are designed to ensure safe, efficient, and fully automated steam generation systems. These systems integrate advanced electronic control, monitoring, and safety components to optimize boiler performance and comply with international standards.
GESTRA is recognized as a leading provider of digital boiler control technology, delivering solutions that:
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Improve boiler efficiency
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Enhance operational safety
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Reduce energy consumption
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Ensure regulatory compliance
2. System Concept
The GESTRA Boilerhouse system is a complete control and monitoring platform, covering:
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Boiler water control
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Steam system monitoring
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Blowdown management
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Safety protection
-
Digital automation
It forms the core control layer of industrial steam systems.
3. Main Product Categories (Boilerhouse)
3.1 Level Control Systems
Function
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Monitor and regulate boiler water level
-
Prevent dry running or overflow
Product Series
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SPECTORconnect (digital system)
-
SPECTORmodul (modular system)
Features
-
High accuracy measurement
-
Continuous monitoring
-
Suitable for land and marine boilers
3.2 Level Limiters (Safety Devices)
Function
-
Provide emergency shutdown protection
-
Prevent boiler accidents
Features
-
SIL3 certified safety devices
-
High reliability
-
Suitable for critical applications
These are essential safety components in modern boiler systems.
3.3 Safety Temperature Controllers
Function
-
Shut down boiler in over-temperature conditions
-
Protect equipment and personnel
Features
-
Fast response
-
High safety standard
-
Integrated with control systems
3.4 Blowdown Systems
1. Bottom Blowdown Valves
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Remove sludge and sediment
-
Maintain water quality
2. Continuous Blowdown Valves (BA / BAE Series)
-
Control total dissolved solids (TDS)
-
Improve heat transfer efficiency
Features
-
Reduce scaling
-
Minimize energy loss
-
Extend boiler life
3.5 TDS Control Systems
Function
-
Monitor dissolved solids in boiler water
-
Automatically regulate blowdown
Benefits
-
Reduce maintenance
-
Improve efficiency
-
Prevent scaling
3.6 Turbidity & Contamination Monitoring
Function
-
Detect impurities in feedwater
-
Protect boiler system
Application
-
Prevent system contamination
-
Improve reliability
3.7 Boiler Management System
SPECTORcontrol System
A digital control platform for full boiler automation.
Key Features
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Real-time monitoring of all boiler signals
-
Alarm and limit control
-
Touchscreen interface
-
No complex programming required
Benefits
-
Improved efficiency
-
Reduced equipment damage
-
Simplified operation
3.8 Boiler Accessories
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Electrical connectors
-
Installation components
-
System integration parts
These support the complete automation system.
4. System Functions Summary
| System | Function |
|---|
| Level Control | Water level regulation |
| Level Limiter | Safety shutdown |
| Temperature Control | Overheat protection |
| Blowdown System | Remove impurities |
| TDS Control | Water quality control |
| Monitoring System | Data & diagnostics |
| Boiler Management | Full automation |
5. Technical Advantages
1. Digital Automation
Advanced electronic control ensures precise operation.
2. Safety Compliance
Designed to meet global safety standards (SIL, EN).
3. Energy Efficiency
Reduces fuel consumption and heat loss.
4. System Integration
Fully compatible with modern industrial systems.
5. Reliability
Long-term stable operation in harsh environments.
6. Applications
GESTRA Boilerhouse systems are widely used in:
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Power plants
-
Chemical plants
-
Oil & gas industry
-
Food & beverage processing
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Marine boilers
-
General manufacturing
7. Complete Solution Capability
GESTRA does not only supply components — it provides:
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Engineering design
-
System integration
-
Monitoring solutions
-
Maintenance support
Including services such as:
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Steam system audits
-
Boiler optimization
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Technical consulting
-
Lifecycle support
1. Steam Traps
1️⃣ Thermostatic Steam Traps (Bimetallic – BK Series)
Main Models:
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BK 15
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BK 45 / BK 45U
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BK 46
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BK 37
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BK 27N
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BK 28
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BK 29
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BK 212 / BK 212-F91 / BK 212-S / BK 212-F91-SD / BK 212-F92-SD
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BK 37-ASME
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BK 28-ASME
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BK 29-ASME
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BK 212-ASME
Features:
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Resistant to water hammer
-
Suitable for high temperature and high pressure (up to PN 630)
2️⃣ Thermostatic Steam Traps (Membrane – MK Series)
Main Models:
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MK 45-1 / MK 45-2
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MK 45 A-1 / MK 45 A-2
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MK 35/31 / MK 35/32
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MK 35/2 S / MK 35/2 S3
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MK 25/2 / MK 25/2 S
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MK 36/51 / MK 36/52
Features:
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Highly sensitive response
-
Ideal for heat exchangers and steam tracing systems
3️⃣ Ball Float Steam Traps (UNA Series)
Main Models:
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UNA 14
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UNA 16 / UNA 16A
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UNA 43
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UNA 45
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UNA 46 / UNA 46A
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UNA 47 (latest model)
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UNA 38 (high-temperature type)
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UNA 39 (high-pressure type)
Special Models:
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UNA-Special Type 62B
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UNA-Special PN25
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UNA-Special PN63
Features:
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Continuous condensate discharge
-
Not affected by back pressure
-
Ideal for large flowrate applications
4️⃣ Thermodynamic Steam Traps (DK Series)
Main Models:
Features:
-
Simple and robust design
-
Suitable for main steam lines
5️⃣ Steam Traps for Sterile / SIP Applications
Models:
Application:
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Food, pharmaceutical, and clean steam systems
6️⃣ Steam Traps for Special Applications
Models:
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AK (Condensate Drain Valve)
-
UBK (Steam Trap with Adjustable Discharge Temperature)
-
TK / GK (for large condensate flowrates)
2. Steam Trap Monitoring Equipment
Models:
3. Check Valves
Types:
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Screwed Non-Return Valves
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DISCO Non-Return Valves
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DISCOCHECK Dual-Plate Check Valves
-
DISCO Swing Check Valves
4. Control Valves and Accessories
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Control Valves
-
Safety Valves
-
Stop Valves
-
Strainers
5. Boiler and System Equipment
1️⃣ Condensate Systems
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Automatic Pump Trap Station
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Steam-Powered Condensate Return Station
-
VSD Condensate Recovery System
2️⃣ Heat Recovery Equipment
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Heat Recovery Vessels
-
Steam Regenerators
-
Vapour Heat Exchangers
3️⃣ Deaeration and Cooling
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Feedwater Deaerating Plants
-
Mixing Cooler (Blowdown Tank)
4️⃣ Other Equipment
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Steam Driers
-
Drain Modules
6. Industrial Electronics & Automation (SPECTOR Series)
Main Series:
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SPECTORcompact
-
SPECTORmodule
-
SPECTORconnect
-
SPECTORcontrol
Functions:
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Boiler blowdown control
-
Conductivity measurement
-
Oil and turbidity monitoring
-
Remote data transmission and system control
7. Summary (Selection Guide)
-
Low flow / precise control → MK Series
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High temperature & pressure → BK Series
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Large flow / heat exchangers → UNA Series
-
Simple & robust → DK Series
-
Sterile applications → SMK Series
2. Steam Trap Monitoring Equipment
Vaposcope (Sight Glass): VK 14, VK 16
.
Vapophone (Ultrasonic detector): VKP 10
.
Monitoring Systems: VKP 42 (Ex), TRAPtest Portal
.
Sensors: ecoBolt MSB (Online monitoring sensor installed on steam traps)
.
3. Non-Return Valves / Check Valves
Gravity Circulation Checks: SBO 11, SBO 21, SBO 31
.
Screwed Non-Return Valves: MB 14
.
DISCO Non-Return Valves: RK 70, RK 71, RK 41, RK 44, RK 76, RK 86, RK 16A, RK 26A, RK 49, RK 29A
.
Dual-Plate Check Valves: DISCOCHECK BB series
.
Swing Check Valves: CB 14, CB 24S, CB 26, CB 26A, WB 24S, WB 26, WB 26A
.
4. Control Valves
Return-Temperature Control Valves: CW series (Cooling-water control valves GESTRAMAT), BW series (Return-temperature control valves KALORIMAT)
.
Self-Acting Pressure and Temperature Controllers: 5801 (Pressure-reducing valves), 5610 (Pressure-maintaining valves)
.
General Service Control Valves: GCV series
.
Control Valves with Radial Stage Nozzle: ZK series (ZK 29, ZK 210, ZK 313, ZK 213, ZK 610/613)
.
5. Boiler Controls & Industrial Electronics
This category is primarily divided into three product families: SPECTORcompact, SPECTORmodule, and SPECTORconnect
.
Level Electrodes: NRG 16-50, NRG 16-60, NRG 16-61, NRG 26-60, NRG 111-60
.
Level Switches/Controllers: NRS 1-50, NRS 1-51, NRS 2-51, NRR 2-60, NRR 2-52
.
Conductivity Monitoring (Blowdown control):
Electrodes: LRG 16-60, LRG 16-61, LRG 16-9, LRGT 16-3, LRGT 17-3
.
Controllers: LRR 1-60, LRR 1-50, LRR 1-52, LRS 1-7
.
Operating Units: URB 60, URB 55
.
6. Special Equipment and Vessels for Heat Recovery
Drain Modules: QuickEM
.
Condensate Recovery and Return Systems: Quick CC, SDL (S)
.
Deaerating Plants: NDR (Deaerator dome), SW (Feedwater tank), FD
.
Flash Vessels: VD, VD 45
.
Blowdown Receivers (Mixing Cooler): VDM
.
Steam Driers and Purifiers (Separators): TD
.
Heat Exchanger Units: GESTRAheat
.
7. Valves and Strainers
Safety Valves: GSV series (e.g., GSV 4421, GSV 4425)
.
Strainers: GSF series (Y-type), SZ 36A (Wafer-type)
.
Stop Valves: GAV 6 series (Bellows-sealed), GBV ball valves (M10, M33, M40 series)
.
