5-5
NS.PMD CM
Catalogue HY11-2500/UK
5
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
Characteristics / Ordering Code
Characteristic values (only for standard 2 stage needle)
Size Press. [bar] Flow Max. cross- Kv factor Weight
steel brass [l/min] section valve [kg]
∆∆
∆∆
∆p 10 bar [cm²] open
Shut-off and metering 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 fur-
ther rotations.
A cylindrical needle with a rectangular slot is provided to
reduce the viscosity effect for sizes 400 and 600. The
flow is dependent on pressure and viscosity.
400 210 140 25 0.13 6.3 0.4
600 210 140 40 0.22 11.2 0.6
800 210 140 50 0.28 13.9 1.0
1200 210 140 120 0.70 35.4 2.0
1600 210 35 250 1.48 75 4.0
Performance curves
N
Ordering code
S S
Needle
valve
Manifold
mounting
Steel body
Needle
Clamping
screw
SealSize
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
Size
400
600
800
1200
1600
Code
400
600
800
1200
1600
Needle
Standard
2 stage needle
Micro fine hollow
needle with slot
Code
omit
4*
* only for sizes 400 to 600
Seal
NBR
FPM
Code
omit
F
Clamping screw
Hexagon socket
With knurled
knob
Code
omit
V
Needle Valve
Series NS
5-6
NS.PMD CM
Catalogue HY11-2500/UK
5
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
Size L L5 L4 L3 L7 L6 ØD2 Ød2 B1 BH3 H2 HØd1 ØD SW L1
400 47.5 34.8 - 6.4 4.5 25.4 13.3 7 33.5 44.5 55 50 21 6.8 21 - 11
600 51 33.3 - 8.6 4.1 25.4 16 10 38.1 51 67 61 25.4 7 25 - 13
800 75 38.1 - 18.5 4.1 30 19.1 13 44.5 57.5 77 70 25.4 7 30 - 23
1200 93.5 76.2 38.1 8.6 11.2 54.4 24 17 54 70 95 80 29 9.5 35 - 20
1600 111 95.3 47.5 7.9 19 57.2 32 22 60.2 76.5 140 123 45 9.5 - 47.8 27
Dimensions
Hexagon adjusting
knob, standard for
size 1600
Needle Valve
Series NS
