Marine Check Valve - Marine Check Valve - Hi-sea

Marine Check Valve

Marine Check Valve

Introduction

A marine check valve is a type of valve used in marine applications to allow fluid or gas to flow in one direction only. It is designed to prevent backflow and ensure that fluids or gases move in the desired direction. Marine check valves are commonly used in applications such as ballast systems, bilge systems, and engine cooling systems, among others.

Marine check valves can be made from a variety of materials, including brass, stainless steel, and plastic, depending on the application and the fluid or gas being conveyed. It's important to choose a check valve that is suitable for the specific conditions of the marine environment, such as saltwater exposure and high temperatures.

Feature

Marine check valves are important components used in the marine industry to prevent backflow of water or other fluids. These valves feature several important characteristics that make them well-suited for use in marine environments, including:

1. Corrosion resistance: Marine check valves are typically made of materials that are resistant to corrosion, such as stainless steel or bronze, to ensure longevity and prevent degradation due to exposure to saltwater.

2. Durable construction: These valves are built to withstand the harsh conditions of marine environments, including high pressures, extreme temperatures, and exposure to saltwater.

3. Spring-loaded mechanism: Marine check valves are designed with a spring-loaded mechanism that ensures the valve remains closed until there is sufficient pressure to open it, preventing backflow.

4. Compact size: These valves are typically smaller and more compact than other types of valves, making them ideal for use in tight spaces and confined areas.

5. Easy maintenance: Marine check valves are typically easy to maintain and repair, with simple mechanisms and components that can be easily replaced if necessary.

Overall, marine check valves are an essential component in marine plumbing systems, providing reliable and efficient backflow prevention to ensure safe and reliable operation.

Configuration Options

Name of Parts

Material

Advantages/Disadvantages

Valve Body

Cast Steel

The price of cast steel is lower than that of bronze, and it has better plasticity and toughness, which is manifested in good elongation, reduction of area and impact toughness.

Cast Iron

The price of cast iron is lower than bronze and cast steel, the cost is lower, the wear resistance is good but the corrosion resistance of cast iron is low

Bronze

Pressure resistance, wear resistance, and toughness are higher than those of brass. Bronze has a certain delay in the rusting time of the valve

Valve Bonnet

Cast Steel

Cast carbon steel has higher strength, ductility and toughness at lower cost

Cast Iron

Cast iron is less expensive. Casting performance of cast iron, machinability, friction reduction, good vibration damping performance, low notch sensitivity

Bronze

Good castability, wear and corrosion resistance and stable chemical properties

Valve Disc

Carbon Steel

Advantages: easy to generate, and very hard; Disadvantages: although hard, but very brittle, and easy to rust

Cast Iron

Cost less than bronze and cast steel

Bronze

Bronze has excellent low temperature resistance, the price is a little more expensive than cast iron and carbon steel

Valve Seat

Welding Stainless Steel

Stainless steel corrosion resistance is good, more durable than ordinary steel; Easy plastic processing; Good welding performance;

Bronze

Bronze has good corrosion resistance, wear resistance, castability and excellent mechanical properties

Cast Steel

The production cost is lower, the strength is higher, the toughness is better and the plasticity is stronger.

Specific Difference Between Us and Other Suppliers

Comparison

Product Picture of other low quality supplier


Product Picture of our factory


Other low quality supplier

Consequence

Our Factory

Result

Poor filler quality, there are defects such as loose fillers, burrs, dryness, impurities, etc.

Lead to packing failure, easy to produce medium leakage, valve easy to malfunction.

High-quality fillers are selected, and there is no loose, impurity and other phenomena.

The valve has good sealing and wear resistance, and it is not easy to cause leakage of the medium, and the valve has a longer service life.

To save cost, bronze spool is replaced with cast iron spool,

Cast iron valve core is easy to corrode and break

Production in strict accordance with customer requirements and standards

High safety factor and reasonable structure

The quality of the valve cover is poor, the material is not uniform, and it does not meet the standard requirements

Bonnets are prone to breakage, blisters, corrosion or aging problems

Process production according to standard

The quality of the valve cover is good, it is not easy to generate air holes, and the product has a long service life.

In order to reduce costs and save raw materials, the thickness of the valve body is not processed according to the standard

The valve body is easy to be damaged, and the service cycle is shortened; there is a potential safety hazard

Processed strictly according to the standard

Meet the standard requirements, the valve will last longer

The manufacturer considers the cost and purchases unqualified standard bolts

Leaving hidden dangers on the valve results in an accident.

According to customer requirements, use standard bolts.

Use it with confidence, reduce safety hazards and reduce the accident rate.

List

(1) GB T586-1999 Marine Cast Steel Check Valve

(2) GB T589-1993 Marine Marine Bronze Check Valve

(3) GB T592-1993 Marine Cast Iron Check Valve

(4) GB T597-1983 Marine Bronze Male Thread Check Valve

(5) GB1952-1980 Marine Bronze Male Threaded Check Valve

Specification

standard

GB

medium

Fresh water, sea water, lubricant oil, fuel oil etc.

brand name

Customer required

material

Cast steel, bronze, cast iron

application

Repair ship, shipbuilding

OEM service

available

certificate

RINA, BV, NK, LR, KR, DNV, CCS, ABS.


IACS Certificate: RINA, BV, NK, LR, KR, DNV, CCS, ABS.


Contact with us now

Our mail: hs@cqhisea.com

replace