Stainless Steel Needle Valves
FEATURES
- Available in SS316, all wetted parts in accordance with NACE MR01-75
- Heat Code Traceable to certified material test report
- Low operating torques
- Bar stock Body in Straight Patterns
- Anti Blow-out stem, Variety of stem tips
- PTFE packing standard
- Flow coefficient (Cv) From 0.35 to 1.8
- Orifice size : 0.156" (4.0 mm), 0.250" (6.4mm), 0.375" (9.5mm)
- Variety of end configuration includes SEALEXCEL® Well-Lok™ Tube Fittings, Male / Female NPT, BSPT, BSPP pipe and tube socket weld connections
- Every valve is factory tested.
| No. | Description | Features and Benefits |
| 1. | Anti Blow-out Stem | i) Rolled and plated stem threads for excellent Stem performance & extended service life. II) Non Rotating self centering stem tip for superior & repeatable perfect sealing. III) Burnished stem at packing area to ensure low torque operation of the valve & reduction in packing wear. |
| 2. | Stem Tip | Burnished to achieve high grade surface finish and work hardness for excellence performance and extended service life |
| 3. | Packing Bolt | Allows packing adjustment in open or close position. |
| 4. | Packing | Packing below the threads protects the flow stream from lubricant contamination on the threads or wash out and also protect the stem threads from potential damaging effects of the media. |
| 5. | Locking Pin | To prevent accidental loosening / disassembly of valve. |
| 6. | Bonnet Lock Nut | For safety to prevent accidental loosening of packing bolt |
OPERATING PARAMETERS
- Pressure Rating : upto 6000 psig (408 bar) at CWP
- Temperature Rating :
- -54ºC to 232ºC with standard PTFE packing
- upto 426ºC with optional Graphite packing
APPLICATIONS
- General Plant Service
- Instrument Isolation
- Hydraulic and Pneumatic
- Pressure measurement devices
- Venting
MATERIAL OF CONSTRUCTIONS
| Sr. No. | Part Description | Material |
| 1. | Bar Handle | SS316 |
| 2. | Screw | SS316 |
| 3. | Stem | SS316 |
| 4. | Stem Tip | SS316 |
| 5. | Packing Bolt | SS316 |
| 6. | Bonnet | SS316 |
| 7. | Bonnet Lock Nut | SS316 |
| 8. | Packing | PTFE |
| 9. | Packing Support | GFT |
| 10. | Washer | SS316 |
| 11. | Bonnet Safety Pin | SS316 |
| 12. | Valve Body | SS316 |
| 13. | Dust Cap | PVC |
STEM TYPE :
SEALEXCEL® Needle Valves are available with choice of optional stem to provide greater flexibility.
NON-ROTATING (NR) : It is Standard self centering non rotating stem tip typically used in high cycle application to extend the valve life.
V-STEM (VS) : It is used for general purpose liquid and gases.
SOFT SEAT (SS) : A soft seat stem requires a lower sealing torque, It is replaceable and suitable for temperature upto 120ºC
REGULATING STEM (RS) : It is used where some degree of flow control required.
TECHNICAL DATA
The Temperature and Pressure rating for a standard valve with PTFE packing
| Temperature | Pressure | |
| psig | bar | |
| -54ºC to 38ºC | 6000 | 408 |
| -54ºC to 93ºC | 5160 | 351 |
| -54ºC to 148ºC | 4660 | 317 |
| -54ºC to 204ºC | 4280 | 291 |
| -54ºC to 232ºC | 4130 | 289 |
TESTING :
- Standard Test : Each valve is factory tested with nitrogen at 1000 psig (69 bar) for leakage at the seat and packing.
- Optional Hydrostatic test : This test is performed with de-ionised water at 1.5 time the working pressure.
TABLE OF DIMENSIONS
| End Connections | Orifice | Cv | Dimensions (mm) | Ordering Number | ||||||
| Inlet | Outlet | A | B | E | F | H Straight | J | |||
| 1/4" Well-Lok | 1/4" Well-Lok | 4.0 | 0.35 | 62.0 | 31.0 | 12.7 | 52.5 | 73.0 | - | BS03-TT4 |
| 3/8" Well-Lok | 3/8" Well-Lok | 6.4 | 0.86 | 73.0 | 36.5 | 14.3 | 63.5 | 88.0 | - | BS03-TT6 |
| 1/2" Well-Lok | 1/2" Well-Lok | 6.4 | 0.86 | 77.8 | 38.9 | 14.3 | 63.5 | 88.0 | - | BS03-TT8 |
| 3/4" Well-Lok | 3/4" Well-Lok | 11.0 | 2.2 | 100.0 | 50.0 | 15.9 | 69.9 | 114.0 | - | BS03-TT12 |
| 6mm Well-Lok | 6mm Well-Lok | 4.0 | 0.35 | 62.0 | 31.0 | 12.7 | 52.5 | 73.0 | - | BS03-TT6M |
| 8mm Well-Lok | 8mm Well-Lok | 4.0 | 0.35 | 62.0 | 31.0 | 12.7 | 52.5 | 73.0 | - | BS03-TT8M |
| 10mm Well-Lok | 10mm Well-Lok | 6.4 | 0.86 | 73.0 | 36.5 | 14.3 | 63.5 | 88.0 | - | BS03-TT10M |
| 12mm Well-Lok | 12mm Well-Lok | 6.4 | 0.86 | 77.8 | 38.9 | 14.3 | 63.5 | 88.0 | - | BS03-TT12M |
| 1/8" Female NPT | 1/8" Female NPT | 4.0 | 0.35 | 50.8 | 25.4 | 12.7 | 47.6 | 73.0 | - | BS03-FF2N |
| 1/4" Female NPT | 1/4" Female NPT | 4.0 | 0.35 | 57.2 | 28.6 | 12.7 | 52.5 | 73.0 | - | BS03-FF4N |
| 3/8" Female NPT | 3/8" Female NPT | 6.4 | 0.86 | 60.4 | 30.2 | 14.3 | 63.5 | 88.0 | - | BS03-FF6N |
| 1/2" Female NPT | 1/2" Female NPT | 11.0 | 2.2 | 79.4 | 39.7 | 15.9 | 69.9 | 113.0 | - | BS03-FF8N |
| 3/4" Female NPT | 3/4" Female NPT | 11.0 | 2.2 | 79.4 | 39.7 | 17.5 | 69.9 | 115.0 | - | BS03-FF12N |
| 1" Female NPT | 1" Female NPT | 11.0 | 2.2 | 92.0 | 46.0 | 22.5 | 69.9 | 122.0 | - | BS03-FF16N |
| 1/4" Male NPT | 1/4" Male NPT | 4.0 | 0.35 | 57.2 | 28.6 | 12.7 | 52.5 | 73.0 | - | BS03-MM4N |
| 1/4" Male NPT | 1/4" Female NPT | 4.0 | 0.35 | 57.2 | 28.6 | 12.7 | 52.5 | 73.0 | - | BS03-MF4N |
| 1/2"Male NPT | 1/2" Female NPT | 11.0 | 2.2 | 79.4 | 39.7 | 15.9 | 69.9 | 113.0 | - | BS03-MF8N |
| 3/4" Male NPT | 3/4" Female NPT | 11.0 | 2.2 | 79.4 | 39.7 | 17.5 | 69.9 | 115.0 | - | BS03-MF12N |
| 1" Male NPT | 1" Female NPT | 11.0 | 2.2 | 92.0 | 46.0 | 22.5 | 69.9 | 122.0 | - | BS03-MF16N |
| 1/4 " TSW | 1/4 " TSW | 4.0 | 0.35 | 46.0 | 23.0 | 12.7 | 52.5 | 73.0 | 7.2 | BS03-TSW4 |
| 3/8" TSW | 3/8" TSW | 6.4 | 0.86 | 57.2 | 28.6 | 14.3 | 63.5 | 88.0 | 8.0 | BS03-TSW6 |
| 1/2" TSW | 1/2" TSW | 6.4 | 0.86 | 57.2 | 28.6 | 14.3 | 63.5 | 88.0 | 9.6- | BS03-TSW8 |
| 3/4" TSW | 3/4" TSW | 11.0 | 2.2 | 79.4 | 39.7 | 15.9 | 69.9 | 113.0 | 11.1 | BS03-TSW12 |
Dimensions shown with SEALEXCEL® Well-Lok™ Nut are finger tight
Dimensions are for reference only and subject to change without notice