Threaded ball check valve

Size1″~3″ (DN25~DN80 mm)

OperatedN/A

Conection endThreaded

Conection standardNPT

Working pressurePN16

Body materialDuctile iron

Disc materialDuctile iron + EPDM / NBR

Seat materialEPDM/NBR

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Product Details

A ‌ball check valve‌ is a simple type of ‌check valve‌ that uses a free-moving ball (typically spherical) as the blocking element to allow fluid flow in ‌one direction only‌ and prevent reverse flow (backflow). It relies on gravity, fluid pressure, and the weight of the ball itself for operation.

Technical Standard:
1.Thread Standard: NPT.
2.Test Standard: GB/T 13927/API 598.

Product Advantages&Our Service:
1.Body/Housing:‌ Contains inlet and outlet ports. Common materials is ductile iron.
2.‌Ball:‌ A free-moving spherical element. Material depends on the fluid: rubber-coated.
3.Extremely Simple Design:‌ Minimal moving parts (just the ball), making it robust and inexpensive.
4.‌Reliable for Viscous Fluids & Slurries:‌ Less prone to sticking or jamming compared to flap or swing valves, good for thick liquids or those with solids (if the ball is hard).
5.‌Bubble-Tight Seal (Potential):‌ Can achieve excellent sealing if the ball and seat are precision-machined and compatible with the fluid.
6.‌Vertical Orientation Required:‌ Must be installed with flow direction ‌vertically upward‌ (inlet below, outlet above). Gravity is essential for closure.
7.‌Fast Closure:‌ Can close relatively quickly upon flow reversal.
8.Adopt epoxy painting,stronger adhesion and good weather resistance.
9.Pressure Testing Report,3.1 Certificate of Material can be provided.

Face to face dimension:

DN	mm	25	32	40	50	65	80
DN	inch	1	1-1/4	1-1/2	2	2-1/2	3
L（PN16）		125	132	145	175	200	243

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

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Threaded ball check valve

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