901 s – Steriflow Mark 901 Series User Manual
Page 2

M
ark
901 S
erieS
C
avity
-F
illed
B
all
v
alveS
M
aterIal
s
pecIFIcatIons
L1
Size,
NPS
Body Pressure
Rating
Valve Name Plate Pressure
Rating, PSI
Clamp End
1
Tube End
1
1/2"
1000
500
1000
3/4"
1000
500
1000
1"
1000
500
1000
1-1/2"
1000
500
1000
2"
1000
450
750
2-1/2"
800
400
50
3"
800
350
625
4"
800
300
600
4
13 17
Ø
d
V
alVe
n
aMe
p
late
r
atIng
1
Clamp end name plate pressure rating is based on Tri-Clover A13MHM
Tri-Clamp (hinged 2-segment clamp with wing nut)
2
Tube end name plate pressure rating is the lesser of the body rating or
the tube end rating calculated with ANSI B31.3 using Sy-20ksi
Y=0.4 and E=0.8
No.
Part
Material
Qty
1
Body
ASTM-A351-CF3M
1
2
Cap
ASTM-A351-CF3M
2
3
Ball
ASTM-A351-CF3M
1
4
Seat
PTFE / TF 1641
2
5
Gasket
PTFE / TF 1641
2
6
Stem
ASTM A276 316
1
7
Thrust Washer
PTFE / TF 1641
1
8
Stem Packing
PTFE / TF 1641
1
9
Bolt
AISI 304
4
10
Hex Nut
AISI 304
4
11
Bolt Washer
AISI 304
4
12
Bevel Washer
AISI 304
2
13
Nut
AISI 304
1
14
Nut
AISI 304
1
15
Handle
AISI 304
1
16
Handle Cover
Vinyl
1
17
Lock Device
AISI 304
1
18
Stop Pin
AISI 304
1
Size
Oper.
Torque
in-lbs (Nm)
Cv (Kv)
Weight Lb (Kg)
Clamp End
BWE
1/2"
80 (9,1)
9 (7,7)
1.6 (0,72) 1.54 (0,70)
3/4"
85 (9,6)
26 (22,4)
2.0 (0,90) 1.90 (0,86)
1"
100 (11,3) 61 (52,5)
2.7 (1,2)
2.6 (1,2)
1-1/2" 250 (28)
193 (166)
5.8 (2,6)
5.6 (2,6)
2"
350 (40)
432 (372)
8 (4)
8 (4)
2-1/2" 600 (68)
728 (626)
18 (8)
17 (8)
3"
860 (97) 1125 (968)
25 (11)
25 (11)
4"
990 (112) 1986 (1708)
46 (21)
46 (21)
t
echnIcal
s
pecIFIcatIons
p
ressure
– t
eMperature
c
hart
1100
1000
900
800
700
400
0
0
100
200
300
400
Temperature, °F
Pressure, psi
-2-
Ø
D2
L1
7
8
12 18 6 14
15 16
10
11
3
1
5
2
9
L
200
76
69
62
55
48
41
0
35
28
21
Pressure, bar
-18
38
93
149
204
Temperature, °C
Handle for 4" valve
G
B
A
DIN3337
ISO5211
1/2"-2"
2-1/2"-4"
Ø
d
Ø
D1
ØF
7
14
600
500
300
100
Graph shows body
center rating. Clamp
fittings or tube ends
may reduce rating