Description
GA-186M Hydraulic safety relief valve
GA-186M is a hydraulic safety relief valve that protects the hydraulic circuit by opening a relief path when pressure exceeds the calibrated limit. The unit is an independent functional component of the applicable onboard system. Selection should be based on the complete designation, working medium, setting and installation diagram rather than appearance alone.
Full descriptionCollapse description
Operating principle of GA-186M
Pressure acts on the pilot and main valve elements. Above the calibrated threshold the pilot opens, a pressure differential moves the main member and the pump line is connected to return; after pressure falls, the springs reseat the elements. Reliable operation depends on clean working fluid, the moving element, seat, springs and seals. Contamination, reversed connections or an unsuitable pressure can prevent the intended response.
Role in the aircraft system
Aircraft hydraulic system pressure-protection panels. Confirmed applications include Tu-154 systems and other aircraft or special equipment using a 24 MPa AMG-10 circuit. The valve works with pipelines, a pressure source, downstream equipment and the control elements of its circuit. These products are functionally related but must not be described as interchangeable merely because they operate in the same system.
Installation and maintenance checks
Before installation, verify the nameplate, ports, flow direction, internal cleanliness and seal condition. Working pressure, temperature, fluid and the prescribed functional test must come from the passport and maintenance documentation. Adjustment without approved instructions is not permitted. Incoming-inspection results should remain with the product records.
Identifying GA-186M for ordering
Confirm the full GA-186 family suffix and the calibrated opening pressure. GA-186/3, GA-186M and GA-186M/3 must not be treated as automatically interchangeable. Other related products are listed in the valves category. An enquiry should state the complete designation, execution, condition, delivery set and required supporting documents.
Technical details
- Product Type
- Hydraulic safety relief valve
- Designation
- GA-186M
- Russian Designation
- ГА-186М
- Function
- protects the hydraulic circuit by opening a relief path when pressure exceeds the calibrated limit
- Operating Principle
- Pressure acts on the pilot and main valve elements. Above the calibrated threshold the pilot opens, a pressure differential moves the main member and the pump line is connected to return; after pressure falls, the springs reseat the elements.
All specificationsCollapse specifications
- System / Applicability
- Aircraft hydraulic system pressure-protection panels. Confirmed applications include Tu-154 systems and other aircraft or special equipment using a 24 MPa AMG-10 circuit.
- Working Medium
- AMG-10 hydraulic oil
- Operating Pressure
- Nominal and opening pressure 24 MPa / 240 kgf/cm², subject to passport tolerance
- Operating Temperature
- Working temperature −60 °C to +80 °C
- Installation
- According to flow direction, port assignment and the diagram of the specific system
- Ordering Check
- Confirm the full GA-186 family suffix and the calibrated opening pressure. GA-186/3, GA-186M and GA-186M/3 must not be treated as automatically interchangeable.
- Documentation
- Product passport, illustrated parts catalogue, system diagram and available test records
- Mass
- 1 kg
- Installation Position
- Any position where permitted by the system drawing
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms