Needle Valve / PT Female / Tappeds / Stainless Steel
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[Features] PT female connector / PT female connector compact needle valve. -Allows fine adjustment of the flow rate of water, oil and air.
Part Number
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- Drawing / Specifications
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Dimensional Drawing
| Component List | ||||
| No. | Qty. | Part Name | Material | Surface Treatment |
| 01 | 1 | Main Body | EN CW617N Equiv. | Chrome Plating |
| 02 | 1 | Spindle | EN CW614N Equiv. | Chrome Plating |
| 03 | 2 | Back-Up Ring | EN CW507L Equiv. | ― |
| 04 | 1 | O-Ring | NBR-70-1 | ― |
| 05 | 1 | Gland Nut | EN CW614N Equiv. | Chrome Plating |
| 08 | 1 | Handle | PBT Resin | ― |
| 09 | 1 | Name Plate | PC Resin | ― |
[M]Material: Brass
[S] Surface Treatment: Chrome Plating
[S] Surface Treatment: Chrome Plating
Specification Table
| Part Number |
| NSBCC33 |
| Part Number | Rc (PT) | Rc (PT) | L | H | H1 | d (⌀) Orifice Diameter | |
| Type | No. | ||||||
| NSBCC | 11 | 1/8 | 1/8 | 32 | 41 | 5 | 4 |
| 22 | 1/4 | 1/4 | 36 | 44 | 6 | 5 | |
| 33 | 3/8 | 3/8 | 40 | 5 | |||
[ ! ] It is not designed for use in a negative-pressure environment.
Technical Information
·Cv Value Curve
The values in the graph are based on the experimental devices and should be used as a reference.
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 | ||||
| Liquid | General |  |  | Same as the left | |
| High Viscosity (20 cs or more) |  |  | Same as the left | ||
| Gas | Ambient Temperature |  |  |  |  |
| High Temperature |  |  |  |  | |
| Steam | Saturation |  |  |  |  |
| 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.
Values may vary significantly depending on actual environmental conditions, etc.
Part Number:
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Part Number
|
|---|
| NSBCC11 |
| NSBCC22 |
| NSBCC33 |
| Part Number |
Standard Unit Price
| Minimum order quantity | Volume Discount | Supply Side, Plumbing Thread Nominal | Control Side, Plumbing Thread Nominal | Length (mm) | Height (mm) | No. | |
|---|---|---|---|---|---|---|---|---|---|
11.97 € | 1 | Available | 5 Days | 1/8 | 1/8 | 32 | 41 | 11 | |
11.97 € | 1 | Available | 5 Days | 1/4 | 1/4 | 36 | 44 | 22 | |
11.97 € | 1 | Available | 5 Days | 3/8 | 3/8 | 40 | 44 | 33 |
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Specifications/Overview
Specifications
| Applicable Fluids | Water, Air, Oil |
| Operating Temp. Range | −10 to 80°C (No Freezing) |
| Max. Operating Pressure | 0.98 MPa |
Basic information
| Main Body Shape | Straight Type | Body Material | Brass | Applicable Fluid | Water / Air / Oil |
|---|---|---|---|---|---|
| Supply Side, Connection Type | RC (PT) | Control Side, Connection Type | RC (PT) | Handle Shape | Knurled Handle |
| Ball Seat Material | Not Provided | Operating Temperature Range(°C) | -10::80 | Handle Dia.(mm) | 25 |
| Operation Method | Manual Type |
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
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