96
MATERIALS
Body 9 S Mn Pb 23 - UNI 5105
Ball UNI 100 C 6
Spring AISI 302
Ball guide Nylon 66 + Carbon fibre
FT 266/6 - UNF
EXAMPLE FOR ORDERING
Code Type Viton seal
Steel FT 266/6 34 V
DIMENSIONS
Type
ØA
UNI 4534
ØB C D E F CH (3)
34 3/4”-16 UNF 12,7 11,5 16,5 28 35,5 24 2068
78 7/8”-14 UNF 15,9 12,5 20 32,5 40 27 3075
SEAL KIT ON THE SEATING
Type 1(OR) 2(BK)
34 2037 266/6.022.00.1-34
78 2050 267/2.022.00.1-38
CARTRIDGE MOUNTED SINGLE-ACTING CONTROL
VALVES MAX 350 BAR
They allow the flow in one direction, shutting-off the same in the opposed
direction.
On request
• Complete with Viton seals (V)
• Knob in ABS (mp)
97
TECHNICAL DATA
Type
Max. working
pressure bar
Min. bursting
pressure bar
Working
temperature °C
Filtration grade
µm absolute
34 320 1300 -20°/+100° 25
78 320 1300 -20°/+100° 25
PRESSURE DROP ∆p
24
22
20
18
16
14
12
10
8
6
4
2
0
FLOW RATE Q
FT 266/6 - 34
l/min
bar
162
26
Oil 3,2° E ÷ 50°C
8
14
18 32
46 1210
20 22 24 28 30 34 36 38 40 42 44 46 48 50
52
PRESSURE DROP ∆p
28
24
20
16
12
8
4
0
FLOW RATE Q
FT 266/6 - 78
l/min
bar
20
Oil 3,2° E ÷ 50°C
30
10
40 50 60 70
FT 266/6 - UNF
100
FT 265/2 - FT 266/2 FT 266/5 - FT 266/6 - FT 268/2
Sealing realized
with OR seals
on conical seating
101
FT 265/2 - 266/2 - 266/5 - 266/6 - 268/2
DRAWING OF CAVITY MACHINE FOR CARTRIDGE
MOUNTED VALVES
CONICAL SEATING FOR OR FT 265/2 - FT 266/2 FT 266/5 - FT266/6 - 268/2
Type M N P Q R S T
α
°
OR
34 0,5 14,3 19,05
±0,13
1,53
±0,08
0,1
+0,15
-0
29
±0,4
29,8 70° 2068
78 0,5 15,75 24,45
±0,1
1,4
±0,1
0,1
+0,15
-0
33,75
±0,4
34,5 60° 3075
CONICAL SEATING FOR OR FT 265/2 - FT 266/2 FT 266/5 - FT266/6 - 268/2
Type ØA ØB
C
UNI 4534
D E F G ØH ØL
34 32
±0,4
20,65
±0,1 3/4”
-16UNF-2B 2,75 9,5 18,9 28,6 11,7
12,7
+0,05
-0
78 32
±0,4
24
±0,1 7/8”
-14UNF-2B 2,75 12,35 24,25 31,85 15
15,875
+0,05
-0
