Silient check valve

Size2″~16″ (DN50~DN400 mm)

OperatedN/A

Conection endDouble Flange Type

Conection standardPN10 / PN16 / 150LB

Working pressurePN16

Body materialDuctile iron

Disc materialBrass , SS304

Seat materialEPDM

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Product Details

A ‌Silent Check Valve‌ (also commonly called a ‌Non-Slam Check Valve‌, ‌Noiseless Check Valve‌, or ‌Soft Closing Check Valve‌) is a type of ‌check valve‌ specifically designed to ‌prevent water hammer (hydraulic shock) and loud slamming noises‌ that occur when traditional check valves close abruptly under backflow conditions.

Technical Standard:
1.Design Standard: GB/T 12235.
2.Face to face: GB/T 12235/ASME B16.10.
3.Flange Standard: EN1092-2/ASME B16.1 .
4.Test Standard: GB/T 13927/API 598.

Product Advantages&Our Service:
1.Disc:‌ Typically a lightweight poppet or guided disc. Often made of SS304 or Brass.
2.‌Spring:‌ Essential internal component providing the controlled closure force and cushioning.
3.‌Guided Stem/Shaft:‌ Ensures the disc moves precisely in a vertical path, aligning perfectly with the seat.
4.‌Seat:‌ Precision-machined seat for bubble-tight shutoff.
5.‌Body:‌ Ductile iron
6.‌Eliminates Water Hammer:‌ Prevents damaging pressure surges.
7.‌Quiet Operation:‌ Dramatically reduces or eliminates the loud slamming noise upon closure.
8.‌Reduced Vibration & Wear:‌ Smooth closing protects the valve internals and the piping system from impact damage and vibration fatigue.
9.‌Faster Opening:‌ The spring mechanism often helps open the valve more quickly at lower flow rates compared to gravity-dependent valves.
10.‌Flexible Installation:‌ Can usually be installed in ‌ANY orientation‌ (horizontal, vertical up, vertical down) because they don't rely solely on gravity for closure. 11.‌Good for High Flow/Velocity Systems:‌ Ideal where rapid flow reversal is expected.
12.Adopt epoxy painting,stronger adhesion and good weather resistance.
13.Pressure Testing Report,3.1 Certificate of Material can be provided.

Face to face dimension:

DN	mm	50	65	80	100	125	150	200	250	300	350	400
DN	inch	2	2-1/2	3	4	5	6	8	10	12	14	16
L（PN16）		120	135	155	165	190	210	260	270	320	335	340
L（150LB）		152	178	191	229	254	279	343	406	483

The data is for reference only, please consult sale@valflovalve.com for details.

QUESTIONS

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Silient check valve

Product Details

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