Steam
saturation
curve
Pressure bar g
The product must not be used in this region.
Body design conditions
PMA Maximum allowable pressure
TMA Maximum allowable temperature
Minimum allowable temperature
PMO
Maximum operating pressure for
saturated steam service
TMO Maximum operating temperature
Minimum operating temperature
DPMX MaximumdifferentialpressureislimitedtothePMO
Designed for a maximum cold hydraulic test pressure of 75 bar g
The internals have been
exploded below to help
identify the position of some
of the parts in the materials
list.
A - B Virgin PTFE TFM 1600
No.Part
1 Body
2 End connections
3 Ball
4 Stem
5 Seat and cavity filler
6 Stem seals
7 Spacer
8 Compression nut
9 Lock washer
10 Stem nut
11 Stem 'O'ring
12 Handle
13 Cover
14 Nuts and bolts
Material
Stainless steel
Stainless steel
ASTM
Stainless steel
Stainless steel
Virgin PTFE TFM 1600
Virgin PTFE TFM 1600
Stainless steel
Stainless steel
Stainless steel
Stainless steel
Viton
Stainless steel
Vinyl
Stainless steel
Virgin PTFE TFM 1600
Virgin PTFE TFM 1600
Virgin PTFE TFM 1600
A351 Gr. CF3M
(316L)
AISI 316L
AISI 304
AISI 304
AISI 304
AISI 304
AISI 304
AISI 304
AISI 304
AISI 301
8
9
18
4
17
7
15
17 Beleville washer
5
3
Bolt washer
16 Body seal
The 3" and 4" units have 6 x studs
and 12 x nuts and washers
14
18 Packing follower
19 Thrust washer
Page 2 of 4
TI-P182-06 ST Issue 5
2
1
4
1
3
14
2
10
12
13
The 21⁄2" unit
has 4 x nuts,
bolts and
washers
16
11
19
15
6
5
16
720 psi
50 bar g @ 109 °C
180 °C @ 0 bar g
-20 °C
7 bar g
T
e
m
p
e
r
a
t
u
r
e
°
C
180 °C @ 0 bar g
-20 °C