Needle Valve / PT Male and Barb Type / Stainless Steel

Needle Valve / PT Male and Barb Type / Stainless Steel

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[Features]PT connector / hose connector compact needle valve. -Allows fine adjustment of flow rate of water, oil and air.

Part Number

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the corresponding part number is displayed here.

Dimensional Drawing

NSBHR
Component List
No.Qty.Part NameMaterialSurface Treatment
011Main BodyEN CW614N Equiv.Chrome Plating
021SpindleEN CW614N Equiv.Chrome Plating
032Back-Up RingEN CW505L Equiv.
041O-RingNBR-70-1
051Gland NutEN CW614N Equiv.Chrome Plating
081HandlePBT Resin
091Name PlatePC/ABS Resin
111SocketEN CW614N Equiv.Chrome Plating
[M]Material: Brass
[S] Surface Treatment: Chrome Plating

Specification Table

Part Number
NSBHR93
Part NumberApplicable Hose
I.D. (mm)
R
(PT)
DLHH1d (⌀)
Orifice Diameter
TypeNo.
NSBHR6161/87564464
9393/810.5665

Technical Information

·Cv Value Curve

The values in the graph are based on the experimental devices and should be used as a reference.
·Flow Calculation Based on Cv Value
Fluid
Differential Pressure Conditions
When P2> P1 2 When P2≤ P1 2
LiquidGeneralSame as the left
High Viscosity
(20 cs or more)
Same as the left
GasAmbient Temperature
High Temperature
SteamSaturation
Overheating
Moisture
QL(m3/h): Liquid Flow Rate
Qg(m3/h): Gas Flow Rate: Normal Condition (15°C 760 mmHg)
Qs(kg/h): Steam Flow Rate
P1(Mpa abs): Primary Absolute Pressure
P2(MPA abs): Secondary Absolute Pressure
K: Viscosity Correction Factor
t(℃): Fluid Temperature
GL: Specific Gravity of Liquid (Water = 1)
Gg: Specific Gravity of Gas (Air = 1)
S(℃): Steam Superheat
X: Steam Dryness (Dry Saturated Steam X = 1)
·Calculation Example of flow rate based on Cv value (Reference Value)
If the flow rate calculation conditions are as follows.
Valve Size: N□□□22 (1/4)
Degree of Opening: 3 turns
ΔP = P1 - P2: 0.294 MPa (3 kgf/cm2) (1)
Fluid: Water (GL=1)··· (2)
The Cv value at 3 turns can be read as = 0.33 from the Cv value curve. ··· (3)
Since the fluid is water, the general formula for liquids is used.
Transforming this formula into QL = will be the following formula (4).

Substitute the conditions (1), (2), and (3) into formula (4) and calculate.
[ ! ]The above formula and the results are the reference values.
Values ​​may vary significantly depending on actual environmental conditions, etc.
Part Number
NSBHR61
NSBHR93
Part Number
Standard Unit Price
Minimum order quantityVolume Discount
Standard
Shipping Days
?
Supply Side, Plumbing Thread Nominal Control Side, Connecting Tube Diameter
(Ø)
Length
(mm)
No.

15.23 €

1 Available 5 Days 1/865661

15.23 €

1 Available 5 Days 3/896693

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Specifications/Overview

Specifications
Applicable FluidsWater, Air, Oil
Operating Temp. Range−10 to 80°C (No Freezing)
Max. Operating Pressure0.98 MPa

Basic information

Main Body Shape Straight Type Body Material Brass Applicable Fluid Water / Air / Oil
Supply Side, Connection Type R (PT) Control Side, Connection Type Hose Connection Handle Shape Knurled Handle
Ball Seat Material Not Provided Operating Temperature Range(°C) -10::80 Height(mm) 44
Handle Dia.(mm) 25 Operation Method Manual Type

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