Description
MOOG G772K336A Intrinsically Safe 2-Stage Electro-Hydraulic Servo Valve
MOOG G772K336A is a two-stage mechanical feedback electro-hydraulic servo valve from the G772K intrinsically safe series, engineered for high-precision closed-loop hydraulic motion control in hazardous industrial environments. This MOOG G772K336A adopts nozzle-flapper hydraulic amplification structure with polarized torque motor, supporting analog current signal input to realize precise flow, pressure and position regulation of hydraulic actuators. As an explosion-proof core hydraulic control spare part of MOOG industrial servo solutions, G772K336A complies with ATEX/IECEx intrinsic safety standards, delivers ultra-fast dynamic response and excellent null stability, widely deployed in metallurgical rolling mills, gas turbine control systems, plastic precision molding and petrochemical hazardous process equipment.
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Basic Procurement Parameters
- Brand: MOOG
- Model: G772K336A
- Availability: Original factory new sealed stock, fully tested refurbished valves available
- Delivery Time: 1–5 working days for in-stock inventory; 10–12 weeks for factory backorder shipments
- Guarantee: 12-month full warranty from shipment date
- Condition: Brand new original unopened / Fully disassembled, cleaned, calibrated and bench tested refurbished
- Series: G772K Intrinsically Safe 2-Stage Servo Valve
- Mounting Standard: ISO 10372 Size 03 standard mounting pattern
- Rated Flow: 38 L/min (10 gpm) at 210 bar pressure drop
- Max Operating Pressure: 210 bar (3000 psi)
- Rated Input Signal: 40mA analog control current
- Step Response (100% signal): 6–12 ms
- Frequency Response: 130–190 Hz (-3dB bandwidth)
- Safety Certification: ATEX Ex ia IIB/IIC T4, IECEx intrinsically safe
- Hydraulic Fluid: Petroleum-based industrial hydraulic oil
- Recommended Fluid Viscosity: 10–97 cSt @ 38°C
- Required Fluid Cleanliness: ISO 4406 17/14/11 or cleaner
- Operating Temperature Range: -29°C ~ +135°C
- Seal Material: Fluorocarbon high temperature resistant seals
- Weight: 3.0 kg
- Control Structure: Two-stage nozzle-flapper with mechanical feedback (MFB)
- Coil Type: Intrinsically safe low-power torque motor coil
Key Features & Advantages (3 Points)
- Intrinsically safe explosion-proof design with complete ATEX/IECEx certification, safe for flammable petrochemical, gas power and high-risk production workshops
- High frequency response two-stage hydraulic amplification, fast step response and outstanding zero drift stability, guarantees micron-level positioning accuracy for precision hydraulic equipment
- Standard ISO 03 mounting interface, universal interchangeability with same-series models including G772K240A, convenient on-site replacement without modification of hydraulic manifold
Industry Application Scenarios (4 Points)
- Metallurgy industry: Steel plate AGC rolling mill pressure control, continuous casting vibration table hydraulic adjustment systems
- Power generation: Gas turbine steam valve hydraulic actuator precise positioning and load regulation control
- Plastic manufacturing: Precision injection molding & die casting machine injection speed and pressure closed-loop control
- Petrochemical industry: Hazardous area hydraulic test benches, process valve remote servo adjustment equipment
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