• Needle valve
  • Needle valve

Needle valve

Material of flat gate valve:  A105,,LF2,F304,F304L,F316,F316L,F317L,MONEL

Size of flat gate valve:  1/2inch(DN15)-2inch(DN50)

Pressure of flat gate valve:  150LB(PN10)-2500LB(PN420)

Connection type:  Flange(RF,EM,RTJ),SW,BW.

Kind of drive:  Wrench,Gear,Pneumatic and electric

Design standard:  API6D

working medium:  Water,oil, Natural gas

Introduction to the needle valve

Needle Valves are used to reduce the rate of flow in a leg of a pneumatic circuit, consequently slowing actuator speed.  Unlike a Flow Control, a Needle Valve controls flow in both directions (bi-directional).  A finely threaded stem allows the gradual adjustment of the amount of controlled flow passing through the valve.  Flow enters the input port, travels through an orifice sized by the tapered stem and out the output port.


Drawing for Female thread needle valve :

needle valve

type
DN
NPT
H
L
D0
MN-1-1
DN6
1/4”
82
57
57
MN-1-2
DN10
3/8”
82
57
57
MN-1-3
DN15
1/2”
90
68
63
MN-1-4
DN20
3/4”
110
80
70
MN-1-5
DN25
1”
130
90
89

Drawing for Male thread needle valve :


needle valve



ITEM NO.
DN
Nominal bore
Td
H
L
L1
N
J21W-HB-1
DN6
NPT1/4
75
58
75
60
J21W-HB-2
NPT1/2
80
62
66
60
J21W-HB-3
NPT3/4
80
57
-
60
J21W-HB-4
DN10
NPT3/8
75
58
78
60
J21W-HB-5
DN15
NPT1/2
77
68
86
60


Drawing for Angle  needle valve :

ANGLE NEEDLE VALVE

ITEM NO.
ø
L
H
D0
J94W/H-1
ø8
38
92
ø70
J94W/H-2
ø10
38
92
ø70
J94W/H-3
ø12
39
92
ø70
J94W/H-4
ø14
40
94
ø70
J94W/H-5
ø18
42
100
ø80


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