Needle Valves : Series – BS99

Needle Valves : Series - BS99

(For High pressure Applications)

FEATURES

  • Available in SS316, all wetted parts in accordance with NACE MR01-75.
  • Heat Code Traceable to certified material test report
  • Low operating torque
  • Bar Stock Body in Straight Pattern, Panel mountable
  • Anti Blow-out stem provides positive back seal in full open position.
  • Variety of stem tips to provide greater flexibility
  • Orifice size : 0.156" (4mm) and 0.250" (6.4mm)
  • Flow coefficients (Cv) from 0.35 to 0.86
  • Variety of end configurations includes Male/Female NPT, BSP, BSPT pipe connections.
  • Every valve is factory tested.

OPERATING PARAMETERS

  • Pressure Rating : Upto 10,000 psig (680 bar) at CWP
  • Temperature Rating :
    • Upto120ºC (depend on O-ring seal)

APPLICATION

  • General Plant Service
  • Hydraulic and Pneumatic
  • Pressure measurement devices
  • Venting


MATERIAL OF CONSTRUCTIONS

No. Component Material
1 Bar Handle SS316
2 Set Screw SS316
3 Stem SS316
4 Bonnet SS316
5 'O' Ring Viton®
6 Back-up Ring PTFE
7 Washer SS316
8 Bonnet Safety Pin SS316
9 Panel Nut SS316
10 Dust Cap Nylon
11 Valve Body SS316

O' RINGS

  'O' Ring Material   Temperature Rating °F(°C)
Buna - N -10 to 250 (-23 to 121)
EPDM -77 to 250 (-55 to 121)
Vitonâ(Fluorocarbon) -10 to 375 (-23 to 121)
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.

STANDARD CONFIGURATION DIMENSIONS

End Connections Orifice Cv Dimensions (mm) Ordering Number
Inlet Outlet A B E F G H (Open)
1/4" Female NPT 1/4" Female NPT 4.3 0.37 57.2 28.6 12.7 52.5 15.1 70 BS99-FF4N
3/8" Female NPT 3/8" Female NPT 6.4 0.86 60.4 30.2 14.3 63.5 19.9 73 BS99-FF6N
1/2" Female NPT 1/2" Female NPT 6.4 0.86 66.6 33.3 15.9 63.5 19.9 76.2 BS99-FF8N
1/4" Male NPT 1/4" Female NPT 4.3 0.37 57.2 28.6 12.7 52.5 15.1 70 BS99-MF4N
3/8" Male NPT 3/8" Female NPT 6.4 0.86 60.4 30.2 14.3 63.5 19.9 73 BS99-MF6N
1/2" Male NPT 1/2" Female NPT 6.4 0.86 69.8 34.9 15.9 63.5 19.9 76.2 BS99-MF8N
1/4" Male NPT 1/4" Male NPT 4.3 0.37 57.4 28.6 12.7 52.5 15.1 70 BS99-MM4N
3/8" Male NPT 3/8" Male NPT 6.4 0.86 60.4 30.2 14.3 63.5 19.9 73 BS99-MM6N
1/2" Male NPT 1/2" Male NPT 6.4 0.86 69.8 34.9 15.9 63.5 19.9 76.2 BS99-MM8N
Dimensions shown with SEALEXCEL® Well-Lok™ Nut are finger tight
Dimensions are for reference only and are subject to change.