Marine DIN Double Check Valve

Marine DIN Double Check Valve

1. Introduction

Marine DIN double check valves are used in marine applications to prevent backflow of fluids, such as water or fuel, in piping systems.

The design of marine DIN double check valves consists of two independently acting check valves that are assembled in a single unit with a common inlet and outlet. These check valves work together to ensure that fluid can only flow in one direction, preventing backflow in the piping system.

2. Application

Marine DIN double check valves are commonly used in applications where backflow prevention is critical, such as in water supply systems and fuel transfer systems. They are also used in ballast systems and firefighting systems to prevent contamination of the water supply or damage to the equipment.

3. Material

(1) Body: Cast Iron

(2) Disc: Bronze

(3) Spring: Stainless Steel

(4) Seat Ring: NBR Viton

Your special material requirement can be met, such as cast steel, stainless steel 304, stainless steel 316L etc.

4. Nominal Diameter & Pressure
Diameter: DN50--DN500
Pressure: PN10

5. Features

These valves are made from high-quality materials, such as brass or bronze, to ensure durability and resistance to corrosion. They are also designed to be easy to install and maintain, with a simple and compact design that allows for easy access to the internal components.

6. Main Size List

CODE	DN	Size  mm		Weight Kgs
		L	D
75 60 71 72 73 74 75	50 65 80 100 125	43 46 64 64 70	105 124 136 174 196	2.7 4.5 5.9 7.7 12
75 60 76 77 78 79 80	150 200 250 300 350	76 89 114 114 127	222 279 340 410 451	16 32 48 78 91
75 60 81 82 83	400 450 500	140 152 152	514 549 606	125 143 197

7. IACS Certificate: ABS, BV, CCS, LR, RINA.