H-74 Solenoid Valve Marine Diesel Engine System Parts

Product Introduction

Marine solenoid valves are high-precision electromechanical components designed for the automated control of various fluids, including fuel, lubricating oil, compressed air, and cooling water. Manufactured from premium stainless steel or high-grade brass with anti-corrosion coatings, these valves use electromagnetic force to actuate the internal plunger or diaphragm, enabling rapid and remote flow regulation. They are essential for modern marine automation systems, providing critical shut-off and directional control functions in engine fuel injection, starting air, and safety systems.

Our solenoid valves feature excellent waterproof (IP67+) and explosion-proof (EX) properties, ensuring reliable operation in harsh maritime environments characterized by high humidity, salt spray, and vibration. They are compatible with leading marine systems and brands, complying with strict CCS classification society certification standards for essential maritime machinery and automation equipment.

We supply full-range spare parts for marine main engines, auxiliary engines, oil purifiers, air compressors, turbochargers and other marine equipment. Both genuine original spare parts and high-quality OEM replacement parts are available.

Complete models & sufficient stock, supporting bulk supply for shipyards, ship owners and marine service companies worldwide.

Our company specializes in providing comprehensive spare parts for all aforementioned brand marine air compressors, including cylinder liners, pistons, valve assemblies, intake & exhaust valves, piston rings, bearings, oil separators, filter elements, safety relief valves, pressure regulating valves and more. We offer both stock availability and customized supply options to meet the maintenance needs of various marine air compressor systems.

Product Advantage

1. High-Performance Electromagnetic Coil, Rapid Response Time

Our marine solenoid valves utilize high-density, low-power consumption coils with excellent insulation ratings (Class H/F). This ensures an ultra-fast response time (within milliseconds) for precise fluid control. The coil is designed to sustain 10,000+ hours of continuous energized operation without overheating or burning out. As core marine automation parts, these valves provide the instant actuation required for critical engine timing and safety shut-off functions, significantly improving the operational efficiency and response speed of the vessel's propulsion system.

2. Marine-Grade Sealing & Anti-Corrosion Materials

The valve body and internal moving parts are crafted from 316L stainless steel or corrosion-resistant brass, while seals are made from premium Viton (FKM) or NBR. This combination provides 45% higher resistance to aggressive marine fuels and salt mist compared to standard industrial valves. It ensures a 100% leak-proof performance under varying pressures and temperatures. This high level of material integrity prevents fluid contamination and internal leakage, stabilizing the engine's auxiliary systems during long-range ocean voyages under extreme maritime conditions.

3. High Protection Rating & Explosion-Proof Design

Engineered for the rigorous maritime environment, our solenoid valves meet IP67 or IP68 waterproof standards and are available with certified explosion-proof (Ex d / Ex m) enclosures. This makes them suitable for installation in hazardous areas such as engine rooms, fuel tank areas, and pump rooms. The robust housing resists vibration and mechanical impact, preventing electrical failure or short circuits caused by humid salt fog. This enhanced protection design ensures the continuous and safe operation of automated control systems on container ships, tankers, and offshore platforms.

4. Strict Multi-Stage Quality Inspection & CCS Certification

Every batch of marine solenoid valves completes rigorous quality checks, including high-pressure sealing tests, electrical insulation verification, and cyclic aging tests before delivery. The qualification rate is stabilized at 99.7%, with a field operation failure rate below 0.3%. We provide official factory test reports and electrical parameter sheets for all orders. Supplied with official CCS Type Approval Certificates, our products allow shipyards to perform direct installation and integration into shipboard control systems without secondary testing, shortening installation and commissioning cycles.

Product Uses

1. Automated Control of Fuel and Starting Air Systems

In large ocean-going vessels, solenoid valves are vital for the automated control of fuel supply lines and main engine starting air systems. During engine startup or maneuvering, these valves receive signals from the Bridge or ECR (Engine Control Room) to instantly open or close fluid paths. Our high-precision valves ensure the exact timing of fuel injection and air distribution, which is critical for successful engine ignition and power regulation. Their reliability supports all-weather operations for bulk carriers and container ships, ensuring consistent engine performance in demanding maritime scenarios.

2. Emergency Safety Shut-Off and Auxiliary Systems

Solenoid valves are essential components in emergency safety systems, such as fuel quick-closing valves and fire-fighting foam systems. In the event of an alarm, our valves can be remotely triggered to isolate fuel sources or activate suppression systems, preventing the spread of fire or mechanical damage. Additionally, they provide consistent control for auxiliary systems like freshwater generators and oil purifiers. By providing a certified and durable control solution, we help shipowners maintain the integrity of their safety networks and comply with international maritime safety and classification society regulations.

Compatible Compressor Models

FAQ

Q1. What is your terms of packing?

A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?

A: Usually T/T100% in short delivery, if the delivery is long 50% as deposit, and 50% before delivery.

We'll show you the photos of the products and packages before you pay the balance.

Q3. What is your terms of delivery?

A: EXW, FOB, CFR, CIF, DDU. 

Q4. How about your delivery time?

A: Generally, it will take 7 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q5. Can you produce according to the samples?

A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures. 

Q6. What is your sample policy?

A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost. 

Q7. Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery 

Q8: How do you make our business long-term and good relationship?

A: 1. We keep good quality and competitive price to ensure our customers benefit

    2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.