10-39
Catalogue HY11-3500/UK
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
10
Needle Valve
Series N / 9N
N-9N_UK.INDD RH
Size Steel
Pressure [bar]
Stainless
Brass
Flow
[l/min]
Max. cross
section
Kv factor
valve
Weight
[kg]
400 350 350 140 25 0.13 6.3 0.22
600 350 350 140 40 0.22 11.2 0.6
800 350 350 140 50 0.28 13.9 0.63
1200 350 – 140 120 0.70 35.4 1.04
1600 210 – 35 250 1.48 75 2.13
Technical data (only for standard 2 stage needle)
Manatrol stop and throttle valves with 2-stage needle
cone. Fine adjustment for the first stage can be achieved
with 3 rotations of the adjustment knob. The second stage
with normal throttle characteristics is achieved with 3
further rotations. A cylindrical needle with a rectangular
slot is provided to reduce the viscosity effect for sizes
200 up to 600. The flow is dependent on pressure and
viscosity.
Return check poppet
Nominal cracking pressure
0.4 bar
Operating temperature -40°C to +121°C
Specifications
Kv from the table
∆p [bar]
γ [kg/dm
3
] = spezific weight of the medium
(γ for mineral oil = 0.85 - 0.9)
Flow rate Q [l/min] = Kv ·
∆ p
γ
2)
only for sizes 200 to 600
Ordering code
1)
only for sizes 400, 600, 800
Code Size
200 1/8
400 1/4
600 3/8
800 1/2
1200 3/4
1600 1
N
Clamping
screw
NeedleNeedle
valve
Thread
size
Code
Seal
omit
NBR
V
FPM
Code
Needle
omit
Standard 2-
stage needle
4
2)
Micro-fine hol-
low needle
with slot
Thread
type
Code
Thread
omit
NPTF
9
BSPP
Code
Body
S
Steel
B
Brass
SS
1)
Stainless steel
Body Seal
Code
Clamping screw
omit
Hexagon
socket
F
With knurled
knob
T
Tamper-proof
Characteristics / Ordering Code
10-40
N-9N_UK.INDD RH
Catalogue HY11-3500/UK
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
10
Needle Valve
Series N / 9N
p/Q curves
Characteristic Curves / Dimensions
Hexagon adjusting
knob, standard for
size 1600
Dimensions
Size R* Threads H3 H2 H1 B L1 L ØD SW
200 1/8 39 35 8 16 16 38 19 -
400 1/4 46 40 10.5 21 25 51 21 -
600 3/8 55 49 13 26 32 64 25 -
800 1/2 69 61 16 32 33 67 30 -
1200 3/4 86 71 19 38 41 83 35 -
1600 1 124 107 22.5 45 54 108 - 47.8
* G or NPTF
