Data Sheet

24000CVF and 24000SVF Valves
D103333X012
Product Bulletin
52.1:24CVF_SVF
March 2013
4
Figure 2. Optional 151 Low Flow Trim Assembly
E1246
151LowFlowTrim
Assembly
The PTFE seat surrounds the valve plug (key 4) to
eliminate clearance flow typical of lapped-in
metal-to-metal close clearance micro trims. Flow is
directed over the valve plugandforcedthrougha
single V-notch path as the plug moves above the PTFE
seat providing precise and predictable control over its
entire travel range. When the V-notch moves below
the PTFE seat, CLVI primary shutoff is achieved.
A live-loaded metal collar fully retains the PTFE seat.
The valve plug (key 4) seats against the m etal collar
providing CL IV secondary shutoff. In addit ion, the fluid
process pressure combines with the actuator seating
force t o form a hydraulic seal within the fully retained
PTFE seat. Therefore, the higher the process pressure
thetightertheshutoff.
Figure 3. Optional 177 Low Flow Trim Assembly
E1247
Table 2. 151 Low Flow T rim
Key No. Description Material
2
(1)
Seat Ring ASTM A276 S31600/ S31603
4
(1)
Plug ASME SA479 S21800
Seat Subassembly
51
(1)
Cage ASTM A276 S31600/ S31603
Seat PTFE
Collar ASTM A276 S31600/ S31603
Washer ASTM A276 S31600 Cond B
Insert ASTM A276 S31600/ S31603
1. For optional trim materials, consult your Emerson Process Management sales office
for price and delivery.
Table 3. 177 Low Flow T rim
Key No. Description Material
2
(1)
Seat Ring ASTM A276 S31600/ S31603
Seat Subassembly
2a
(1)
23 Gland ASTM A276 S31600/ S31603
24 Retainer Nut ASTM A276 S31600/ S31603
25 Insert Reinforced PTFE
26 Housing ASTM A276 S31600/ S31603
4
(1)
Plug ASME SA479 S21800
1. For optional trim materials, consult your Emerson Process Management sales office
for price and delivery. Baumann 32 actuator requires duel-sto ps with 177 trim series.