Features and Benefits of Pusher Seals – UD Series-VOIPSU161921:
- Extended service life in heavy-duty services assured by rugged single pusher seal with thick cross-section components
- Increased reliability via large, low spring rate single coil spring that tolerates axial setting dimensions while reducing the opportunity for clogging and hang-up from solids
- Consistent seal face contact provided by robust U-cup seal and spring holder
- Low-emissions performance enabled by silicon carbide rotating face mounted on graphite ring in UC and UCQ seals, preventing shrink fit distortions and sustaining a flat seal face
- High pressure performance in UO, UOP, D, and DP seals enabled by silicon carbide rotating face mounted on O-ring, preventing shrink fit distortions and sustaining a flat seal face
- Cost-effective operation ensured by integrated pumping ring in D and DP seals that establishes an exclusive Plan 23 cooling chamber around the seal faces and eliminates the expense of cool injection systems
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