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Screw Tips
Ring valves - Ball Check valves

Ball Check Valves

Specifically engineered to meet the needs of the Injection Molding Industry, EMI Ball Check Valves meet or exceed OEM specifications. Need help choosing the correct valve for your materials and application? Ask to speak to a member of our experienced engineering staff or see choosing a non return valve.

Ball Check Valve Styles
Screw Tip - order/quote form. pdf
Front Discharge

This check valve offers the best all-around precision shot control available.

Excellent choice for running non-shear-sensitive, general purpose materials. Low cost, removable ball check inserts can be interchanged for various compressions and recovery rates. Year after year, molders have preferred EMI’s ball check valve because of its dependability and consistency.

Standard: 4150 pre-treated steel. Optional: 440C stainless steel or CPM 9V tool steel. Inserts available in S-7 tool steel.

Hi-Flow

Ideal for high speed molding of general purpose materials which normally require a ring valve.

EMI Hi-Flow ball check valves feature extra large inlets and flow paths to dramatically increase melt flow while cutting compression ratios down to 1.5:1. Recovery times are cut without sacrificing precision shot control. Included: Includes EMI’s exclusive, low cost, removable ball check insert which is interchangeable for various compressions and recovery rates. Standard: 4150 pre-treated steel. Optional: 440C stainless steel or CPM 9V tool steel. Inserts available in S-7 tool steel.

Side Discharge

The most reliable and highest quality 4-piece valve available.


This ball check valve gives you excellent shot control, enhanced mixing action, is self-cleaning and purges rapidly via a “washing” action between the nose cone and end cap, making it ideal for fast color changes. Replaceable, low cost ball and ball seat minimize maintenance costs and downtime. Hand seated interfaces ensure a tight seal. This is an ideal valve for general purpose, non-shear-sensitive materials where frequent color changes must be made. Standard: 4150 Pre-treated steel. Optional: 440C stainless steel or CPM 9V tool steel.

Replacement Inserts

Available in 3 styles to suit specific application needs
Replacement Ball Check Inserts
O.D. of Ball Check
4150 Steel (Standard)
High Compression
S-7 Tool Steel
1" - 2 1/4"
(25mm - 57mm)
$ 131.00
$ 158.00
$ 194.00
2 5/16" - 4" (58mm - 100mm)
$ 147.00
$ 204.00
$ 243.00
Over 4"
(Over 100mm)
$ 197.00
$ 253.00
$ 280.00

Screw Tips
Ring valves - Ball Check valves
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