Instrumentation Needle Valve

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Instrumentation Needle Valve

 

BRAND NAME TU-LOK
VALVE SIZE 1/8" TO 2" / 6 MM TO 50 MM
THREAD NPT, BSPP, BSPT, JIC, METRIC, UNF
CONNECTION THREADED, TUBE END, BUTT WELD, SOCKET WELD, FLANGE END
FLOW PATTERN STRAIGHT, ANGLE, CROSS PATTERNS
FUNCTION 2 WAY, 3 WAY
BODY SHAPE SQUARE, ROUND, HEXAGON
PRESSURE RATING 1500 PSI, 3000 PSI, 6000 PSI, 10000 PSI, 15,000 PSI, 20000 PSI
ORIFICE SIZE 2 MM TO 9.5 MM
MEDIA  HYDRAULIC OIL, AIR, WATER, GAS, STEAM, HOT WATER , COLD WATER , SEA WATER , CHEMICAL
MEDIA TEMPERATURE (-120* C TO 500*C ) RANGE AS PER PRESSURE
BODY TYPE BAR STOCK, FORGED
HANDLE  BAR T-HANDLE,KNOB HANDLE, WHEEL HANDLE
PACKING DETAILS BOX PACKING, WOODEN PALLET
EQUIVALENT BRANDS SWAGELOK, PARKER, DK-LOK, HAMLET, OLIVER VALVES, HOKE
MATERIAL SS 304, SS 316, SS 316 TI, BRASS, COPPER, CS, DUPLEX, SUPER DUPLEX, INCONEL, MONEL, HASTELLOY, SMO 254, ALLOY 20, TITANIUM, 904L & ALL OTHER ALLOYS
APPLICATION SUGAR, OIL & GAS, TEXTILE, POWER, WATER & WASTE WATER TREATEMENT, CHEMICAL PROCESS INDUSTRIES

 

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  • A Female/Female 3 piece body with bleed
  • A Male/Female Single Piece Body
  • A Ringlok Compression End Three Piece Body with Bleed

 

Pressure Rating
Hard seat models 10,000 psi
Soft seat models 6,000 psi

Operating Temperature
Media: max. 200°F (+93°C)
min. 0°F (-18°C)

Flow Rate
Hard seat models Max. Cv.52
Soft seat models Max. Cv.83

 

NPT

Thread Part No Dim A Dim B Dim C
1/4 NPT NV2N-3-B 2.25 4.00 3.87
3/8 NPT NV3N-3-B 2.25 4.00 4.30
1/2 NPT NV4N-3-B 2.25 4.00 4.42

BSPT

Thread Part No Dim A Dim B Dim C
1/4 BSPT NV2T-3-B 2.25 4.00 3.87
3/8 BSPT NV3T-3-B 2.25 4.00 4.09
1/2 BSPT NV4T-3-B 2.25 4.00 4.42

BSP

Thread Part No Dim A Dim B Dim C
1/4 NPT NV2P-3-B 2.25 4.00 3.75
3/8 NPT NV3P-3-B 2.25 4.00 4.09
1/2 NPT NV4P-3-B 2.25 4.00 4.37

 

NPT

Thread Part No Dim A Dim B Dim C
1/4 NPT NV2N 2.25 4.00 2.69
3/8 NPT NV3N 2.25 4.00 2.69
1/2 NPT NV4N 2.25 4.00 2.69

 

O/D Size Ringlok Part No Dim A Dim B Dim C
6mm NV 6M=OD-3-B 2.25 4.00 4.23
8mm NV 8M=OD-3-B 2.25 4.00 4.29
10mm NV 10M=OD-3-B 2.25 4.00 4.35
12mm NV 12M=OD-3-B 2.25 4.00 4.55

 

O/D Size Ringlok Part No Dim A Dim B Dim C
1/4 NV2=OD-3-B 2.25 4.00 4.24
3/8 NV3=OD-3-B 2.25 4.00 4.34
1/2 NV4=OD-3-B 2.25 4.00 4.55
5/8 NV5=OD-3-B 2.25 4.00 4.55

 

  1. Most constant pressure pump governors have needle valves to minimize the effects of fluctuations in pump discharge pressure.
  2. Used in pharmaceutical and food industries.
  3. Used in situations where the flow must be gradually halted
  4. Automatic combustion control systems
  5. Needle valves can also be used for precise throttling service.
  6. For precise flow regulation is necessary.

 

  1. Optional Hydrostatic test : This test is performed with de ionised water at 1.5 time the working pressure. Other tests like vibration, temperatures, helium etc are available upon requests.
  2. Standard Test : Each valve is factory tested with nitrogen at 1000 psig (69 bar) for leakage at the seat and packing, the maximum allowable leak rate of 0.1 sccm.

 

  • Stem is lifted off the seat more than 2x faster than conventional valves, which reduces throttling and therefore increases seat life. (Quick Turn Needle Valve)
  • Solid stainless steel handle
  • Standard valve fully opens in as little as 3 1/3 turns / Quick turn needle valve (1 3/4 turns).
  • Two-piece, heavy duty, non-rotating stem for a robust and reliable assembly.
  • 4-sided tapered stem for maximum handle contact. No chance of the handle slipping or loosening on stem.
  • Packing gland/body thread interface consists of a preload locking internal thread form that is resistant to vibration. Eliminates the need for an external locking device.
  • Complete material traceability.
  • Double sided weep holes for easier leakage verification.
  • Less than half of the number of turns to fully open compared to competitor's valves. Less operator fatigue when opening/closing. (Quick Turn Needle Valve)
  • Bi-directional flow capability. Simplifies system designs.
  • Stainless steel captive fixing screw with stainless spring for easier handle removal. Eliminates dropped or mislplaced fixing screw.

 

  1. product are Protected with plastic caps to prevent damage
  2. each assembly is packed in sealed and clear polyethylene bag for cleanliness and carefully packed in cardboard boxes to prevent transit damage.
  3. Each and every package is labelled for proper and easy identification.

 

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