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Valve Size:  DN15 – DN600 
Pressure Rating: PN6,PN10,PN16 
Material: Cast Iron(GG25) and Ductile Iron(GGG40 and GGG50).
Test & Inspection: EN12266
Face to Face Dimension(Flanged): DIN3202 F6
End: BSP acc.to ISO228-1, Flange EN1092-2 PN16 and AS4087

Features:

Leflow’s is manufacturing ball check valve with Flanged and Screwed ends, and options are as following:
1.DN15 to DN50 can be Screwed, and DN40 to DN600 are commonly flanged ends;
2.The coating of ball can be NBR or EPDM;
3.All sizes of valves are Fusion bonded epoxy coated;
4.Full bore for all sizes;

The cast iron check valve is usually used to control the one-way flow of fluids.
It usually consists of a valve body, ball, spring, and sealing components.This kind of valve is suitable for medium and small diameter pipelines and widely used in industrial systems such as water supply, drainage, heating, and cooling.

Its main characteristics are as following:
1.Simple and compact structure: fewer components, easy to install and maintain;
2.Low Pressure drop, Minimum backpressure for tightness 0.3bar;
3. Quick close:The check valve can quickly close when the fluid flow direction changes, preventing backflow and protecting the safe operation of the pipeline system;
4. Good sealing performance: The ball is encapsulated with soft rubber, which can achieve Zero leak;
5. Silent operation the sound of ball touching the seat is very small,as soft rubber covering the ball;
6. The ball can self-Cleaning;
7. Horizontal and vertical installation in the pipeline
8. Keep valve on Pipeline to change ball or clean valve interior