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“P-770” Spin Lock
“P-770” General Purpose- 3-piece / Inter-Locking Ring / Castle Style
Designed with generous flow volumes and direct high polished flow paths. Manufactured from H-13 tool steel that is heat-treated as well as Ion Nitride surface hardened for added wear protection.
Specifications
“P-770” General-Purpose- 3-piece /Locking/ Free Flow:
| Designed with generous flow volumes and direct, highly polished flow paths, this valve provides very little pressure drop. Providing fast screw recovery rates, it’s easy and fast purging for material and color changes. | ||
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| Materials: | All three components of the P-770 Spin-Lock screw tip are manufactured from H-13 tool steel that is heat-treated to the maximum safe Rockwell hardness, based on the valve geometry that will range from 52 to 59. The components are Ion Nitride surface hardened for added wear protection. Nitride provides a case hardness of up to 70 Rockwell with a case depth of up to .015” per side. | |
| Recommended Applications: | The P-770 performs well on shear or compression sensitive materials as well as general purpose materials and material with moderate fill percentages. It performs well at high screw speeds and when a large percentage of shot size is utilized. | |
| Limitations: | This product may not perform well on applications using very high viscosity polymers or materials with greater than 15% fillers. Care should be used on start-up to ensure polymer is molten, as the interlocking check ring design is more susceptible to damage than other designs. |
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