Flowserve V-378 R1 Edward Equiwedge Gate Valve - Manual (Page 4)

4
Flow Control Division
Edward Valves
Description of Equiwedge Gate Valve Types
Type I is a flanged yoke design with a
separate gasket retainer ring, both of
which are held to the body by cap
screws. The bonnet retainer is screwed
onto the bonnet and cap screws are
screwed down on top of the body to force
the bonnet into contact with the gasket.
See illustration No. 1.
Type II is a flanged yoke design with or
without a separate bonnet retainer ring,
both of which are held on the body by
cap screws or studs and nuts. The bonnet
is pulled up into contact with the gasket
with studs and hex nuts. See illustrations
Nos. 2A and 2B, pgs. 4 and 5. Type III is a wishbone yoke design bolted
to the body. It has a segmental retaining
ring, spacer ring and a screwed on
bonnet retainer equipped with push down
bolts to pull the bonnet up into contact
with the gasket. See illustration No. 3,
pg. 5.
Type IV is a wishbone yoke designed bolt-
ed to the body. It has a segmental
retaining ring, spacer ring and separate
bonnet retainer with pull up studs screwed
into the bonnet to contact the gasket. See
illustration No.4, pg. 5. Type V has a yoke lock ring connection to
the body with a segmented ring, gasket
retainer and a separate bonnet retainer
with studs screwed into the bonnet to pull
up the bonnet against the gasket. See
illustration No. 5, pg. 5.
Illustration No. 1 Illustration No. 2A
Size 2-1/2 & 3 - Figure 1611 and 1611Y Size 4” -Figure 1611 and 1611Y
Size 2-1/2 & 3 - Figure 1711Y Size 4” - Figure 1711Y
Valve Type I Valve Type IIA