Needle Valve with Vent

Valves Needle Valve with Vent
needle valve with vent

Features:

 

Sizes available from 1/4” to 3/4”

Pressure rating up to 6000 psig at 370C

Temperature rating from -540C to 2320C with PTFE packing

Higher temp rating up to 3150C with optional PEEK/Grafoil packing

Machined Bar Stock body

Screwed double bonnet assembly, Body to Bonnet Metal Seal

Non Rotating Hardened Vee Stem tip design

Variety of MOC options SS 304, SS 316, Monel 400 and Duplex Material

Guaranteed Performance and reliability for inline applications

Stem Packing options are available to meet general purpose applications

Stainless Steel Bar handle, Handle Options are available.

Available with NACE MR-01-75 compliance

Variety of end connections include Tube fitting end, Male/Female NPT and ISO threads

Optional Bleed Plugs allow pressure to be bleed off proportionally

Dust and Thread caps provided for ingress dust protection

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Description

Typical Applications of Needle Valve (Isolation and Venting of other instruments):

  1. Instrumentation Systems
  2. Oil and Gas Applications
  3. Gas Distribution Systems
  4. Power Plants and Refineries
  5. Pressure Gauge Valves
  6. Test Stands

Testing:

Each Needle Valve is factory tested with nitrogen gas at 1000psig (69 Bar) for leakage at seal & seat. Other optional tests like hydrostatic (1.5 times of the working pressure) and helium leak tests are available upon request.

Materials of Construction:

Sr. no. Component Material
1 Body SS316 / A276
2 Bonnet SS 316
3 Vee/Regulating Stem Tip SS316 / 17-4 PH
4 Stem Packing PTFE
5 O-ring Viton
6 Stem SS316 / A276
7 Check Nut SS 304
8 Packing Nut SS316
9 Grub Screw CS
10 Bar Handle SS 304
11 Stopper Pin SS 304
12 Dust Cap Nylon

 

Part Number and details:

 

Part Number Inlet x outlet connections Orifice Size in mm Dimensions in mm
L D A L1
NVV6-SS4MF 1/4″ NPT (M)x (F) 4 70 25 62 45
NVV6-SS6MF 3/8″ NPT (M)x (F) 4 70 25 62 45
NVV6-SS8MF 1/2″ NPT (M)x (F) 5 75 30 84 55
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