the Iris Diaphragm Valve, the Disc Valve is a radialy pivoting isolation valve suitable
for applications involving temperature and pressure.
Unlike many conventional slide valves, the Disc Valve
does not jam or leak, due to it's unique angled seat and floating disc arrangement. There
are five bore sizes available with three main construction materials; aluminium, cast iron
and stainless steel. Pneumatic and hand operated versions are available.
reported Disc valves completing millions of operations before any attention is required.
of a specification for a valve, which encompassed all the advantages found in slide and
butterfly valves, but with none of the inherent disadvantages.
A radially pivoted arm supports a free floating disc.
The arm allows the disc to swing in an arc towards an angled seating face. The angled face
ensures the disc only makes contact at the last moment causing a mild wedging action.
- There are no slide or guides to jam
or collect product.
- The shaft is the only item that
passes through the body casting and is easily sealed using a proprietary seal assembly.
- A dovetail groove in the seating
face locates another proprietary seal ensuring a dust tight closure.
- Pneumatic or hand operation is
available to suit control system demands.
- A range of bore sizes are available
from 100 mm to 300 mm, with the outlet always larger than the inlet, ensuring no product
hang-up points internally.
- In-situ seal wear adjustment.
|Options include: -
- Three materials of construction
including aluminium alloy, cast iron and stainless steel (stainless steel not available in
ø300 mm bore).
- A variety of seal materials to suit
the most arduous process or cleandown regimes.
- A variety of shaft bearing
- Various coatings are also available
for extreme applications.
The Second Generation Disc Valve is
an advanced version, which allows the removal of the internal moving parts while the valve
body remains in-situ.
The inlet liner is separate and does not even have to be made from the same material as
the valve body.