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Instrument needle valves series VS
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Download PDF Technical SheetSize: DN 10 - DN 15 ( ½" - ¾")
Rating: type VS3 - 3000 psi at 100 °F (210 bar at 38 °C)-  type VS6 - 6000 psi at 100 °F (420 bar at 38 °C).
Materials: Body and bonnet of ASTM A105 or ASTM A182 F316
Connections: threaded as per ASME B1.20.1 - Socket weld as per ASME B16.11 - Other connection available
BONTForgedSteelInstrumentValves_1BONTForgedSteelInstrumentValves_2

APPLICATION RANGE
The BONETTI BONT valves series VS are needle valves recommended for instrumentation and for any throttling and shut-off service.

DESIGN PRINCIPLES
Series VS valves are equipped with a metal to metal seat/needle having 6 mm seat diameter.

Features:

  • Forged body and bonnet
  • Bolted bonnet connection
  • Outside screw, therefore threads not in contact with the fluid avoiding corrosion and assuring smooth operation
  • Blowout-proof and backseating stem
  • Non-rotating disk, made of ASTM A479 316 nitrided assure perfect sealing and resistance to erosion
  • Packing patented, preformed from graphite and stainlesssteel sheets guarantees perfect seal towards the atmosphere and does not require any maintenance
  • Adjustable packing
  • Low torque due to special packing and non-rotating disk
  • Ideal for areas where danger of fire exists.

Maximum working temperatures depends on the body and bonnet material:

Body and bonnet of ASTM A105:
Max Temp. 425 °C

Body and bonnet of ASTM A182 F316:
Max Temp. 550 °C.

BONETTI Valves type VS are in accordance with Standard Practice MSS SP-99 - Instrument Valves.

CONNECTIONS
Standard connections are:
  • threaded as per ASME Bl.20.1
  • socket weld as per ASME Bl6.11

Valve VS3 can be supplied only with the ends threaded male-female. Other connection available on request.

 

A world leader in Valves

Since 1905 Cesare Bonetti S.p.A. has been manufacturing high performance valves and liquid level indicators, both as standard or as custom designed products to meet the exact requirements of any fluid  pressure and temperature handling application. Thanks to our reputation and experience, our trademarks BONETTI, BONT, CMI and WVE are  recognized worldwide as a guarantee in terms of quality reliability and service to our Customers.

Certifications

Below our primary certifications:

ISO 9001:2008;
Nuclear ASME N Stamp;
Nuclear ASME NPT Stanp;
API 6A-1306  -   API 6D-1213;
API Specification Q1;
ISO/TS 29001;
Pressure Equipment Directive "PED" 97/23/EC;
ATEX - 94/9/EC;
SIL

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