Full Range of Marine Valves – Reliable Flow Control for Vessel Piping Systems

In a vessel‘s piping system, valves are often described as the “throat” of the pipelines – they control the flow, pressure, and direction of media such as bilge water, ballast water, fuel oil, fresh water, steam, and air. Their performance directly impacts navigation safety, equipment operation, and environmental protection.

DEYUAN MARINE, a professional marine equipment supplier, has been deeply engaged in the field of vessel pipeline control, offering a full range of marine valves – including Globe Valves, Gate Valves, Ball Valves, Butterfly Valves, Safety Valves, Pressure Reducing Valves, and High-Velocity Relief Valves – providing safe and reliable fluid control solutions for vessel piping systems.

1. The Importance of Marine Valves

Marine valves are pipeline control devices specifically designed to meet the unique environmental conditions of vessels, used to control the pressure, flow rate, and flow direction of fluids in shipboard piping systems. Their basic functions include:

Function	Description
Open/close media flow	Control pipeline system on/off
Change flow direction	Pipeline switching and distribution
Regulate pressure and flow	Maintain stable system operating parameters
Protect pipeline equipment	Over-pressure protection, backflow prevention

Marine valves are widely used in fresh water, seawater, air, steam, fuel oil, lubricating oil and other piping systems.

2. Deyuan Marine Valve Product Series

Deyuan Marine offers the following main valve types:

Category	Product Types	Typical Applications
Globe Valves	Straight-through,Y-type,Angle, Piston-type	On/off and flow regulation
Gate Valves	Electric, Manual	Large-diameter pipeline on/off
Ball Valves	Fixed, Floating	Quick opening/closing, good sealing
Butterfly Valves	Concentric, Eccentric	Large flow regulation, compact
Safety Valves	Full-lift	Over-pressure protection, pressure relief
Pressure Reducing Valves	Specialised	Pressure regulation and stabilisation
High-Velocity Relief Valves	Pressure/Vacuum	Tanker/chemical carrier cargo tank venting

3. Key Technical Features

3.1 Marine-Grade Design

Deyuan Marine valves are designed and manufactured to meet demanding marine conditions, including high temperature, high humidity, vibration, and vessel motion. Key components are made from corrosion-resistant materials including Stainless Steel 304/316L, Nickel-Aluminium Bronze (NAB), and copper alloys, ensuring long-term reliable operation.

3.2 Reliable Sealing Performance

Valve seals utilise high-performance sealing materials such as PTFE and FKM, ensuring zero or low leakage across various media and temperature conditions. For demanding applications such as tankers and chemical carriers, products are designed to meet VOC emission control requirements.

3.3 Full Range with Strong Adaptability

Deyuan Marine valves are available in sizes from DN15 to DN350, with pressure ratings from PN1.0 to PN25.0MPa, compatible with GB, DIN, ANSI, JIS and other flange standards, meeting the needs of both newbuilding and retrofit projects.

3.4 Intelligent & Remote Control Options

Deyuan Marine offers electric valves, electro-hydraulic valves, pneumatic valves and other remote-control types that can be integrated into vessel automation systems for remote operation and centralised monitoring, enhancing vessel modernisation.

4. Classification Society Approvals

Deyuan Marine valves are available with Type Approval Certificates from major classification societies: CCS, ABS, BV, DNV, LR, NK...

Products are designed and manufactured in compliance with ISO, IMO, MSC/Circ.1009 and other relevant international standards.