The Metal-Seated Wedge Gate Valve is a flanged ductile-iron isolating valve for water reticulation, distribution and general pipeline duty. Its solid SG-iron wedge closes onto brass ASTM seat trim to give reliable metal-to-metal isolation, while the non-rising spindle keeps the valve stem within its envelope for use in chambers and tight installations.

Features & Specifications

• Designed and manufactured to SANS 664

• Non-rising spindle for a compact, protected stem envelope

• Fusion-bonded epoxy (FBE) coated, min. 250 micron (signal blue) for corrosion protection

• SG-iron (ductile-iron, Grade 420/12) gate with brass ASTM seat trim

• Flanges drilled to SANS 1123 or BS4504

• Right- or left-hand closing; cap-top or handwheel operated

• Pressure ratings PN16–PN40; size range DN50–DN600

• Stainless-steel spindle (Grade 410) and circlip; brass gate nut, gland housing and washer

• Twin nitrile-rubber (NBR) O-rings and dust-wiper seal; O-ring type bonnet gasket protects bolting against corrosion

Dimensions & Technical Data

Cross-section, material list and dimension table (DN50–DN200 shown):

Material list: cap top, bonnet & gate — SG iron Grade 420/12; body — SG iron Grade 420/12, FBE coated; spindle & circlip — stainless steel Grade 410; gate nut, gland housing & washer — brass; gate trim — brass ASTM; cap screw & bolt — SS Grade 304/316 or HT steel Grade 8.8; O-rings & dust-wiper seal — nitrile rubber (NBR); coating — FBE 250 micron min. (signal blue).