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The GKV1800C Pneumatic single seat regulating valve is a high-precision process control valve that drives the linear displacement of the valve core through a pneumatic actuator, accurately adjusting the flow rate, pressure or temperature of the medium in the pipeline. Its single seat valve body structure (single sealing surface) design, combined with top guide or cage guide system, ensures stability and sealing under high pressure differential conditions, adapts to the continuous regulation requirements of harsh media such as liquids, gases, and steam, and is widely used in automation control systems in industries such as chemical, petroleum, and power, achieving millimeter level control of process parameters.
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GEKO Control Valves – Technical Specifications (GKV18C / GKV16N / GKV6H)
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Series & Sizes GKV18C: DN15–100 (½"–4") |
Pressure Rating GKV18C / GKV16N: PN10–63 / ANSI Class 150–600
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Body Materials (EN) 1.0619 GP240GH (−10℃ to 400℃) |
Body Materials (ASTM) A216 WCB (−29℃ to 425℃)
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Bonnet ≤DN65: 1.4408 (A351 CF8M) |
Plug Characteristic Standard: Equal percentage / Linear |
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Rangeability 50:1 |
Double Guide Optional: Integrated bottom guide for DN40–DN600, Kvs > 25 |
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Seat Leakage Metal Seal: Class IV (<0.01% Kvs), optional Class V |
Bellows Seal Double-walled, 1.4571 or optional Hastelloy |
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Heating Jacket Connections DN15 or DN25, PN40 (1” ANSI 300) |
Key Features High precision internals, quick-exchange seat system, |
Features:
- High precision adjustment performance
Linear/Equal Percentage Flow Characteristics: The valve core adopts a parabolic or orifice plate design, with an adjustment accuracy of ≤± 1% and an adjustable ratio of 50:1;
Quick response: Pneumatic actuator (single/double acting) with locator (optional intelligent type), response time ≤ 3 seconds, supports 4-20mA, HART and other signal feedback, compatible with DCS/PLC system integration.
- Adaptation to high pressure differentials and harsh working conditions.
Single seat sealing structure: The valve core and seat are tightly matched, with a leakage level of Class V (ANSI/FCI 70-2) and a pressure difference of ≤ PN50 (Class 300);
Temperature and corrosion resistance: The valve body material can be selected from 304/316 stainless steel, Hastelloy (C276), Monel (400), with a temperature resistance of -196 ℃~550 ℃, and resistance to strong acids, alkalis, and corrosive media.
Perfection in every detail
- Powerful Actuator
The GEKO 812 series pneumatic multi-spring actuator delivers fast stroking times, constant seating force, and cost-effective performance. Available in multiple sizes, it ensures robust and explosion-proof operation. Electric and electrohydraulic actuators are also optional.
- Multi-Functional Positioner
The GEKO digital positioner supports 4-20 mA, HART, Profibus (PA), and Foundation Fieldbus, enabling bidirectional communication and easy parameterization. It complies with VDI/VDE 3847, with optional analog versions available.
- Reliable Stem Seal
From stuffing box to bellows sealing, GEKO ensures leak-proof performance under different fluids, pressures, and temperatures. Optimized design minimizes friction, corrosion, and emissions.
- Fixed-Form Housing Seal
The robust housing/bonnet connection prevents assembly errors and lateral forces, ensuring tight sealing and reliable operation.
- High-Precision Internal Parts
GEKO valves feature optimized closure members and seats, high-grade materials, and a quick-exchange seat system. Options include metallic, compressible, or symmetrical seat rings, with ceramic versions for abrasive media.
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GEKO Control Valve – Innovations & Benefits
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Patented valve seat with PTFE soft seal and metal secondary seal
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✔ Absolute seat tightness |
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Seat rings made from a wide variety of materials
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✔ Reproducible seat tightness due to self-centering |
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PTFE V-ring packing with precision sealing element
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✔ Safety and hermetic sealing |
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Quick exchange system for seat rings and plugs |
✔ Maintenance without special tools |
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Wide variety of valve trims optimized for all applications
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✔ Maximum process flexibility with high control quality |
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Stainless steel stuffing box area |
✔ No galvanic corrosion |
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Flow-optimized valve housing
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✔ High flow coefficients |
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8. Compact, robust design
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✔ Minimum mounting space required |
Reaction kettle temperature/pressure control, distillation tower feed ratio adjustment, acid-base pH regulation.
Wellhead throttling, pipeline pressure stabilization, LNG storage tank temperature management.
Boiler feedwater regulation, steam turbine load control, waste heat recovery systems.
Sterile fluid dosing and ratio control, fermentation tank parameter regulation, 3A hygienic compliance.
SCR/SNCR reducing agent dosing, wastewater treatment chemical injection systems.
GKV-225V port (V-ball type) rotary control valve combines the advantages of zero leakage Class VI bubble sealed ball valves with the high adjustability of control valves, making it suitable for various control valve applications and achieving excellent flow control, lower pressure drop, and fast response. All V-ball control valves comply with multiple industry standards and certifications, including API 607, ATEX, NACE MR0175, PED, and SIL, ensuring reliability and compliance with international standards.
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The GKV1800C Pneumatic single seat regulating valve is a high-precision process control valve that drives the linear displacement of the valve core through a pneumatic actuator, accurately adjusting the flow rate, pressure or temperature of the medium in the pipeline. Its single seat valve body structure (single sealing surface) design, combined with top guide or cage guide system, ensures stability and sealing under high pressure differential conditions, adapts to the continuous regulation requirements of harsh media such as liquids, gases, and steam, and is widely used in automation control systems in industries such as chemical, petroleum, and power, achieving millimeter level control of process parameters.
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Single-seat pneumatic control valve - English
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