Bleeder Screw Gauge Valve Series : NVD41


DAWSONS-TECHmost cost effective Bleeder Screw Gauge Valve Series : NVD41 is having compact and rugged Bar Stock Square Body equipped with a Bleed Screw and Swivel Nut design and construction. This Valve is most suitable for a variety of applications including Instrumentation, Hydraulic and Pneumatic systems.
Features / Benefits :
  • Low operating torque, Anti blow-out stem.
  • Stem threads are cold rolled for smooth operation.
  • Choice of optional stem to provide greater flexibility.
  • Choice of packing PTFE or Graphite.
  • Stem packing below the threads, protects the Stem threads from system media.
  • Orifice size : 4.3mm, 6.3mm and 9.5mm, Flow Coefficient (Cv) from 0.37 to 1.8.
  • Available in Material SS316, all wetted parts in accordance with NACE MR01-75.
  • Every Valve is pressure tested.
Material of Constructions :
Sr. No.Part DescriptionMaterial
1HandleSS316
2ScrewSS316
3Valve StemSS316
4Dust CapPVC
5Packing Adjustment ScrewSS316
6Lock NutSS316
7BonnetSS316
8WasherSS316
9PackingPTFE / Graphite
10Safety PinSS316
11Valve BodySS316
12Swivel NutSS316
13Drain PlugSS316

STANDARD CONFIGURATION DIMENSIONS :
End Connection - AFlow DataDimensions in mmDawsons-Tech Part No.
Orifice (mm)CvBEFA/F1A/F2
1/4" BSP (Male x Swivel Nut)3.20.2580.079.054.025.4019.0NVD41-MF4G
1/2" BSP (Male x Swivel Nut)4.30.37100.084.058.031.7527.0NVD41-MF8G
M20 x 1.5 (Male x Swivel Nut)4.30.37100.084.058.031.7527.0NVD41-MF20M
1/2" BSP x M22 x 1.5 (Male x Swivel Nut)4.30.37100.084.058.031.7527.0NVD41-M8G-22M
  Dimensions are for reference only and are subject to change.