Ductile Cast Iron Silent Check Valve
Check Valve &Strainer

Ductile Cast Iron Silent Check Valve

Size: DN50-DN600

Body Material: Ductile Iron

Pressure: PN16/25 / Class 150

Flanged Standard: ANSI  B16.5, EN1092-1     

Temperature: 0℃ to +120℃

 

Description

The Silent Check Valve (also known as a vertical check valve) is a high-performance automatic valve that operates based on the flow of the medium itself to automatically open and close the valve flap.

    Product Details

    The Silent Check Valve is a specialized non-return valve designed to protect pumping systems, pipelines, and equipment by preventing reverse flow and minimizing pressure surges, commonly known as water hammer. As a specialized type of check valve, its primary function is to prevent medium backflow, protect pumps and drive motors from reverse rotation, and avoid the discharge of container media.

    The Silent Check Valve is an ideal solution for applications where low-noise operation and cost-efficiency are essential. Its compact linear travel and spring-assisted return mechanism enable the valve to close before flow reversal occurs, effectively preventing hydraulic shock and water hammer that typically result from the abrupt stoppage of reverse flow.
    Its compact and robust design makes it suitable for installation in horizontal or vertical orientations and helps extend the service life of pumps and piping systems while reducing noise and vibration during operation.

    QINGDAO FLUIDO excels in manufacturing this premium silent check valve, integrating exquisite craftsmanship and strict quality control to deliver unparalleled reliability and performance.

    Key Features

    Material Versatility
    Compact & Lightweight Design
    Flexible Installation
    Rapid Closure & Water Hammer Prevention

    Specification

    Specification

    NO.

    Part

    Material

    1

    O-ring

    EPDM rubber

    2

    Body

    Ductile iron GJS-500-7 (GGG-50)

    3

    Seat

    Stainless steel 1.4308 (CF8), cast

    4

    Disc

    Stainless steel 1.4308 (CF8), cast

    5

    Spring

    Stainless steel 1.4301

    6

    Bush

    Stainless steel AISI 316

    7

    Bolt

    Stainless steel A2

    8

    Retainer ball

    Stainless steel AISI 304

    9

    Set screw

    Stainless steel A2

    10

    Stem

    Stainless steel 1.4301

    11

    O-ring

    EPDM rubber

    12

    O-ring

    EPDM rubber

    13

    Spacer

    Stainless steel 1.4301

    14

    Nut

    Stainless steel A2

    15

    Face ring

    Stainless steel 1.4301

    16

    Stem guide

    Ductile iron GJS-500-7 (GGG-50)

    17

    O-ring

    EPDM rubber

    Dimensions

    DN

    Flange

    L

    W

    C

    mm

    drilling

    mm

    mm

    mm

    65

    PN10/16

    140

    185

    27.5

    65

    PN25

    140

    185

    27.5

    80

    PN10/16

    152

    200

    35.5

    80

    PN25

    152

    200

    35.5

    100

    PN10/16

    184

    235

    46

    100

    PN25

    184

    235

    46

    125

    PN10/16

    216

    270

    51

    125

    PN25

    216

    270

    51

    150

    PN10/16

    248

    300

    61

    150

    PN25

    248

    300

    61

    200

    PN10

    317

    360

    84

    200

    PN16

    317

    360

    84

    200

    PN25

    317

    360

    84

    250

    PN10

    394

    440

    118

    250

    PN16

    394

    440

    118

    250

    PN25

    394

    440

    118

    300

    PN10

    362

    500

    16

    300

    PN16

    362

    500

    16

    300

    PN25

    362

    500

    16

    350

    PN10

    400

    580

    35.5

    350

    PN16

    400

    580

    35.5

    350

    PN25

    400

    580

    35.5

    400

    PN10

    448

    635

    50

    400

    PN16

    448

    635

    50

    400

    PN25

    448

    635

    50

    450

    PN10

    477

    640

    9.5

    450

    PN16

    477

    640

    9.5

    500

    PN10

    525

    715

    8.5

    500

    PN16

    525

    715

    8.5

    600

    PN10

    611

    840

    27

    600

    PN16

    611

    840

    27

    Product Packaging

    Product Packaging
    01

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