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2900 Series Overview • Design Features • Download PDFIndex 

A.

PEEK Bearing

For low friction provides stem guiding and protects packing box from external debris

B.

Robust Spring-Loaded PTFE V-Ring Packing

Has low friction and is self adjusting to zero maintenance

C.

PEEK Bearing in Lower Bonnet Assembly

Provides stem guiding and protects packing box from entrained solids for longer packing life

D.

Thick Balancing Chamber

In bronze, 300 SS, or 17-4pH

E.

EPDM O-Ring or Fluoraz O-Ring

(for higher temperatures)

Maintains pressure balance seal

F.

Plug and Seal

In choice of Bronze, 300 SS, 17-4pH, or Alloy 6 provide class IV shut off.

G.

Bottom Post Guide

For additional stability, allowing higher pressure drop

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