Virgo NL Series Trunnion Ball Valve

Virgo

Virgo NL Series Trunnion Ball Valve

Virgo

The Virgo NL Series Trunnion Mounted Ball Valve features a robust API 6D design that meets or surpasses the most demanding industry specifications. This valve was designed and tested with a reliability focus to keep our customers’ processes operating. The valve has been agency reviewed and is SIL 3 capable, therefore can be utilized in SIS, HIPPS and other critical applications. The NL Series can be supplied in a variety of body and trim configurations to meet most any process condition.

Specifications

Valve Size
NPS 2, NPS 3, NPS 4, NPS 6, NPS 8, NPS 10, NPS 12, NPS 14, NPS 16, NPS 18, NPS 20, NPS 24, NPS 30, NPS 36, NPS 40, NPS 42, NPS 44, NPS 48, NPS 52, NPS 56, NPS 60
Pressure Class
150#, 300#, 600#, 900#, 1500#, 2500#
Materials
Carbon Steel, Stainless Steel, Low Temperature Carbon Steel, Duplex, Super Duplex, Inconel
Design and Manufacturing Standards
API 6D, ASME B 16.34, BS EN ISO 17292
Face to Face Standards
ASME B 16.10, API 6D
Flange Dimension Standards
ASME B 16.5 (up to 24"), ASME B16.47 Series A (26" and above)
Butt Weld Valve End Standards
ASME B16.25
Pressure Test Standards
API 6D, API 598, BS EN 12266 -1 and 2
Fire Safety Test Standards
API 607, API 6FA, BS EN ISO 10497
Quality/Product Certifications
ISO 9001, API 6D, PED 2014/68/EU, EAC (Russia),ATEX and OSHAS 18001
Safety Reliability
SIL3 Capable
Fugitive Emissions
ISO 15848
NACE
MR 01-75 / ISO 15156 compliant
Valve operator options
Bare stem, Gear, Hand lever, Pneumatic actuator, Hydraulic actuator, Gas actuator, Gas-over-oil actuator, Motor-operated actuator, Hydraulic/electro actuator, hydraulic-operated actuator
Shutoff Class
API 598 (Zero Leakage), Class VI (FCI 70-2), API 6D

Features

  • MULTIPLE STEM SEALING - A multiple sealing stem features a triple sealing with two O-rings and a fire-safe gasket. This arrangement ensures consistent compliance with stringent fugitive emission testing requirements.
  • SEALANT INJECTION - In the event of seat or seal damage due to contamination, an emergency seal can be formed using seat sealant injection.
  • DOUBLE BLOCK AND BLEED - Spring loaded floating seats maintain contact with the ball and provide a tight shut off even at low pressure differential. Independent sealing of upstream and downstream sides facilitates draining/venting of the body cavity, thus the double block and bleed operation
  • EXTRA WALL THICKNESS - Increased corrosion allowance provides extra safety factor
  • BI-DIRECTIONAL CLASS VI SHUTOFF - API tested leakage tested to ensure minimum maintenance and maximum valve life
  • LOW OPERATING TORQUES - Valve features built-in ISO 5211 mounting and low operating torques for easy automation
  • LOW PRESSURE SEALING - Compression springs provide uniform loading of seats, ensuring sealing at low pressures
  • SAFETY DESIGNED IN- Safety features include internal anti-static device, blowout-proof stem provides positive stem retention, API 607/6FA fire safe certification, SIL3 capable

Documents & Drawings