Core Application & Equipment Compatibility
This guide compiles precision spare parts exclusively compatible with equipment models including FKDQ640-7, FKDQ1280-8, FKQ6406, FKQ6406GS, and FKQ3204. Tailored for industrial maintenance professionals in oil and gas, petrochemical, and heavy manufacturing sectors, it addresses the critical demand for model-matched, standard-compliant spare parts to eliminate unplanned downtime, ensure operational stability, and safeguard production safety. All parts comply with IEC 61298-2, GB/T 12224, and API 6D relevant standards, undergoing rigorous performance testing to resolve pain points of incompatibility, premature wear, and costly production disruptions.
Field Fault Maintenance Case
A petrochemical plant in North China experienced frequent power supply failures and hydraulic system anomalies with FKDQ640-7, causing 4+ hours of daily downtime. Inspection revealed faulty TRIO-PS/1AC/24DC/10 power supplies (overload burnout) and QYB35-175L hydraulic pumps (internal wear from contaminated oil). Replacing with our IEC 61558-compliant power supplies and ISO 11158-compatible hydraulic pumps, combined with oil filtration optimization, eliminated issues, reducing downtime to under 20 minutes weekly and cutting maintenance costs by 55%.
Serial No. | Part Name & Specification | Part Number | Material | Main Wear Reasons | Damage Prevention Notes |
1 | Power Supply (24DC/10A, 1AC Input) | TRIO-PS/1AC/24DC/10 | ABS Engineering Plastic (Shell) + Copper Winding Transformer + Industrial-Grade Rectifier Diodes | 1. Overload burnout from electrical load fluctuations; 2. Component aging from long-term full-load operation in high-temperature environments | 1. Monitor load rate (maintain ≤70% of rated 10A); 2. Install in well-ventilated control cabinet (operating temp <40°C) |
2 | Hydraulic Pump | QYB35-175L | Cast Iron (Pump Body) + Alloy Steel (Shaft) + Bronze (Bushing) | 1. Internal component wear from contaminated hydraulic oil (particle size >10μm); 2. Cavitation damage from insufficient oil supply | 1. Use hydraulic oil meeting ISO 11158 standard and replace filters monthly; 2. Ensure adequate oil level and unobstructed suction line |
3 | Valve Component | QB21-82 | Brass (Valve Body) + PTFE (Seal) + Steel (Spring) | 1. Spring fatigue from frequent compression; 2. Valve body corrosion in humid industrial environments | 1. Limit switching frequency to ≤10 times/min; 2. Apply anti-corrosion coating to the valve body annually |
4 | Filter Component | QAC5000-10 | Aluminum Alloy (Filter Housing) + Stainless Steel 316L Filter Element | 1. Filter element clogging from oil contamination; 2. Housing corrosion from moisture accumulation | 1. Replace filter element every 500 operating hours; 2. Drain moisture from the filter weekly |
5 | Solenoid Valve | 34ZS21-25 | Stainless Steel 316L (Valve Body) + Solenoid Coil + PTFE Seal | 1. Coil burnout from voltage surges; 2. Seal leakage from corrosive medium | 1. Install surge protectors to stabilize 24V power supply; 2. Use in compatible medium environments per product specifications |
6 | Valve Component | JYSQ21-25 | Stainless Steel 304 (Valve Body) + PTFE (Seal) + Alloy Steel (Valve Core) | 1. Valve core jamming from medium scaling; 2. Spring fatigue leading to switching failure | 1. Regularly flush the valve with clean water; 2. Replace internal springs every 1500 operating hours |
FKDQ1280-8 Equipment Spare Parts
FKDQ1280-8 is a high-pressure industrial control equipment designed for high-pressure process systems. Its spare parts, such as power supplies and hydraulic pumps, endure extreme pressure, strong electromagnetic interference, and continuous operation—failure can result in catastrophic system breakdowns. Our parts adopt high-strength materials and precision machining, ensuring stable performance in high-pressure industrial environments.
Serial No. | Part Name & Specification | Part Number | Material | Main Wear Reasons | Damage Prevention Notes |
1 | Power Supply (24DC/10A, PAC Type) | TRIO-PS/PAC/24DC/10 | ABS Engineering Plastic (Shell) + Copper Winding Transformer + Industrial-Grade Capacitors | 1. Component damage from electromagnetic interference (EMI); 2. Overheating from poor ventilation | 1. Install in a shielded control cabinet; 2. Ensure 5cm+ clearance around the power supply for heat dissipation |
2 | Hydraulic Pump | QYB35-175L | Cast Iron (Pump Body) + Alloy Steel (Shaft) + Bronze (Bushing) | 1. Shaft seal leakage due to high-temperature aging (operating temp >80°C); 2. Internal wear from long-term full-load operation | 1. Maintain operating temperature below 80°C; 2. Replace shaft seals every 2000 operating hours and monitor load rate (≤70% of rated capacity) |
FKQ6406 Equipment Spare Parts
FKQ6406 is a multi-functional hydraulic control equipment widely used in industrial hydraulic systems. Its spare parts, including hydraulic pumps, pressure transmitters, valves, and repair kits, endure high hydraulic pressure, oil contamination, and mechanical wear—failure can lead to hydraulic system paralysis. Our parts feature wear-resistant materials and precision designs, ensuring efficient power transmission and long service life in harsh hydraulic operating conditions.
Serial No. | Part Name & Specification | Part Number | Material | Main Wear Reasons | Damage Prevention Notes |
1 | Hydraulic Pump (φ22) | QYB40-60L | Cast Iron (Pump Body) + Alloy Steel (Shaft) + Bronze (Bushing) | 1. Thread damage from improper installation; 2. Internal component wear from contaminated hydraulic oil | 1. Use proper tools for installation (avoid over-tightening); 2. Use hydraulic oil meeting ISO 11158 standard and filter monthly |
2 | Hydraulic Pump (φ8) | QYB40-60L | Cast Iron (Pump Body) + Alloy Steel (Shaft) + Bronze (Bushing) | 1. Cavitation damage from insufficient oil supply; 2. Shaft seal leakage due to high-temperature aging | 1. Ensure adequate oil level and unobstructed suction line; 2. Replace shaft seals every 2000 operating hours |
3 | Control Component | QM19-30 | ABS Engineering Plastic (Shell) + Copper Alloy (Internal Mechanism) + Sealing Rings | 1. Internal mechanism wear from frequent switching; 2. Moisture intrusion causing electrical component failure | 1. Limit switching frequency to ≤8 times/min; 2. Install in a moisture-proof control cabinet (IP65 rating) |
4 | Hydraulic Pump | QYB40-60L | Cast Iron (Pump Body) + Alloy Steel (Shaft) + Bronze (Bushing) | 1. Internal component wear from contaminated hydraulic oil; 2. Cavitation damage from insufficient oil supply | 1. Use hydraulic oil meeting ISO 11158 standard and replace filters monthly; 2. Ensure adequate oil level and unobstructed suction line |
5 | Valve (1/2") | GYJZF-00-00 | Stainless Steel 316L (Valve Body) + PTFE (Seal) + Alloy Steel (Stem) | 1. Seal leakage from gasket aging; 2. Stem jamming due to medium scaling | 1. Replace PTFE gaskets annually; 2. Regularly flush the valve and apply anti-corrosion lubricant to the stem |
6 | Pressure Transmitter (40B Range) | YPQ-01-Z/40B | Stainless Steel 316L (Sensor Housing) + Silicon Pressure Sensing Element + Gold-Plated Connectors | 1. Sensor drift from corrosive medium erosion; 2. Signal interference from electrical noise | 1. Calibrate per IEC 61298-2 standard quarterly; 2. Install signal shielding cables and ground properly |
7 | Pressure Transmitter (25B Range) | YPQ-01-Z/25B | Stainless Steel 316L (Sensor Housing) + Silicon Pressure Sensing Element + Gold-Plated Connectors | 1. Sensor damage from overpressure impact; 2. Connector corrosion in humid environments | 1. Ensure operating pressure does not exceed 80% of rated range; 2. Apply anti-corrosion treatment to connectors |
8 | Pressure Transmitter (2.5B Range) | YPQ-01-Z/2.5B | Stainless Steel 316L (Sensor Housing) + Silicon Pressure Sensing Element + Gold-Plated Connectors | 1. Signal drift from temperature changes; 2. Moisture intrusion causing short circuit | 1. Install in temperature-stable environments (0-60°C); 2. Ensure shell sealing integrity |
9 | Filter Component | QAF-5000 | Aluminum Alloy (Filter Housing) + Stainless Steel 316L Filter Element | 1. Filter element clogging from oil contamination; 2. Housing corrosion from moisture accumulation | 1. Replace filter element every 500 operating hours; 2. Drain moisture from the filter weekly |
10 | Hydraulic Pump | QYB48-90L | Cast Iron (Pump Body) + Alloy Steel (Shaft) + Bronze (Bushing) | 1. Shaft seal leakage due to high-temperature aging; 2. Internal wear from long-term full-load operation | 1. Maintain operating temperature below 80°C; 2. Replace shaft seals every 2000 operating hours and monitor load rate (≤70% of rated capacity) |
11 | Repair Kit (for JYS21-25 Valve) | Repair kit JYS21-25 | PTFE (Seals) + Alloy Steel (Springs) + Stainless Steel (Fasteners) | 1. Seal aging from improper storage (humid environment); 2. Fastener corrosion from long-term storage | 1. Store in dry, sealed packaging at 0-30°C; 2. Inspect seals for aging before installation |
12 | Valve (1/2") | DLF-00-00 | Stainless Steel 316L (Valve Body) + PTFE (Seal) + Alloy Steel (Stem) | 1. Seal leakage from gasket aging; 2. Stem jamming due to medium scaling | 1. Replace PTFE gaskets annually; 2. Regularly flush the valve and apply anti-corrosion lubricant to the stem |
13 | Valve Component | QB6-12 | Brass (Valve Body) + PTFE (Seal) + Steel (Spring) | 1. Spring fatigue from frequent compression; 2. Valve body corrosion from chemical medium | 1. Replace springs every 1500 operating hours; 2. Use in compatible chemical medium environments |
14 | Valve Component | QB6-11 | Brass (Valve Body) + PTFE (Seal) + Steel (Spring) | 1. Seal aging in high-temperature environments; 2. Contact wear from frequent switching | 1. Avoid operating in environments exceeding 80°C; 2. Inspect contact surfaces monthly and clean debris |
15 | Control Component | SDTYF-00-16 | ABS Engineering Plastic (Shell) + Precision Resistors/Capacitors + Gold-Plated Connectors | 1. Component damage from voltage surges; 2. Connector loosening from industrial vibration | 1. Install surge protectors to stabilize power supply; 2. Use locking connectors and check tightness monthly |
16 | Valve Component | QB6-10 | Brass (Valve Body) + PTFE (Seal) + Steel (Spring) | 1. Spring fatigue from frequent compression; 2. Valve body corrosion in humid environments | 1. Limit switching frequency to ≤10 times/min; 2. Apply anti-corrosion coating to the valve body annually |
17 | Valve Component | QB-21,47 | Brass (Valve Body) + Fluororubber (Seal) + Steel (Spring) | 1. Seal aging in high-temperature environments; 2. Contact wear from frequent switching | 1. Avoid operating in environments exceeding 80°C; 2. Inspect contact surfaces monthly and clean debris |
18 | Valve Component | QKY21-25 | Stainless Steel 316L (Valve Body) + Ceramic (Valve Core) + PTFE (Seal) | 1. Valve core wear from corrosive hydraulic oil additives; 2. Seal leakage from high-pressure cycling | 1. Test hydraulic oil additive compatibility quarterly; 2. Replace PTFE seals annually with high-pressure-resistant grades |
FKQ6406GS Equipment Spare Parts
FKQ6406GS is a specialized hydraulic control equipment variant, with spare parts requiring strict model matching to ensure system compatibility. Its valve components endure high hydraulic pressure and cyclic load impacts—failure can lead to hydraulic system leakage and control failure. Our parts meet the equipment's specialized technical requirements, ensuring reliable performance and long service life.
Serial No. | Part Name & Specification | Part Number | Material | Main Wear Reasons | Damage Prevention Notes |
1 | Valve Component | QKY21-25 | Stainless Steel 316L (Valve Body) + Ceramic (Valve Core) + PTFE (Seal) | 1. Valve core wear from corrosive hydraulic oil additives; 2. Seal leakage from high-pressure cycling | 1. Test hydraulic oil additive compatibility quarterly; 2. Replace PTFE seals annually with high-pressure-resistant grades |
FKQ3204 Equipment Spare Parts
FKQ3204 is a medium-pressure hydraulic control equipment, with pressure transmitters as core sensing components that require high precision and stability. These transmitters endure corrosive medium erosion and electrical interference—failure can lead to inaccurate pressure monitoring and system misoperation. Our parts adopt corrosion-resistant materials and anti-interference designs, ensuring accurate signal transmission.
Serial No. | Part Name & Specification | Part Number | Material | Main Wear Reasons | Damage Prevention Notes |
1 | Pressure Transmitter (40B Range) | YPQ-01-Z/40B | Stainless Steel 316L (Sensor Housing) + Silicon Pressure Sensing Element + Gold-Plated Connectors | 1. Sensor drift from corrosive medium erosion; 2. Signal interference from electrical noise | 1. Calibrate per IEC 61298-2 standard quarterly; 2. Install signal shielding cables and ground properly |
2 | Pressure Transmitter (2.5B Range) | YPQ-01-Z/2.5B | Stainless Steel 316L (Sensor Housing) + Silicon Pressure Sensing Element + Gold-Plated Connectors | 1. Signal drift from temperature changes; 2. Moisture intrusion causing short circuit | 1. Install in temperature-stable environments (0-60°C); 2. Ensure shell sealing integrity |
Procurement & Technical Support Guidelines
Selecting model-matched, standard-compliant spare parts is essential to ensuring the stable operation of FKDQ/FKQ series equipment and minimizing production downtime. Our parts adhere to ISO 9001:2015 quality management standards and relevant industrial norms (IEC, GB, API), with complete traceability documentation. We provide comprehensive technical support, including part selection consultation, on-site installation guidance, and fault diagnosis services. Whether you need single-part replacements, bulk spare parts inventory, or customized solutions, our professional team is dedicated to delivering high-quality products and tailored services. Contact us today to discuss your requirements and access our full range of industrial equipment spare parts.
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