VKVC is a trusted manufacturer and supplier of Quick Opening Closures used in the Oil, Gas and Energy Sectors. VKVC offers Quick Opening Closures of the following variety:
  • Y Rotary Self Lock Closure
  • Y Ring / Band Lock Closure
  • Y Clamp Ring Type Closure
With over 10,000 units installed and safely in use worldwide with satisfied clients, VKVC is a trusted choice. VKVC is certified by the American Society of Mechanical Engineers to use the ‘U’ and ‘UM’ stamp with its Quick Opening Closures, thus ensuring an industry wide accepted quality standard.
Available Sizes 2" to 60"
Class Rating ASME 150# to 2500#
Design Codes ASME Section Viii Div. 1, UG-35(2) PD 5500 ASME “U” Stamp, FEA can be provided Sizes greater than 60" & pressure rating above 2500# can be provided
Closure Orientation Vertical
Vessel / Trap Design Codes ASME B31.3 ASME B31.4 ASME B31.8 ASME Sec VIII Div. 1
Types of Connection Butt Welded , Flange Ended
Material of Construction ASTM A/SA 350 Lf2 Cl. 1 or 2 ASTM A/SA 105 ASTM A/SA 516 Grade 70 ASTM A 694 F Grade 42/46/52/56/60/65/70 Stainless Steel Grade 304L or 316 Duplex, Super Duplex
Elastomeric Sealing Buna-N, Viton & other options available on request
Standard Closure Finish Red Oxide Primer (Standard) & other options available on request
Additional Available Features
  • Mechanical Sequential Key Interlock
  • Limit Switch
  • Inconel / Stainless Steel Weld Overlay
  • Hydraulic Operating System
  • Worm Gear Operation
Typical applications include but are not limited to
  • Pig Launcher / Receivers
  • Subsea Systems
  • Filters
  • Basket Strainers
  • Sand Blasting Units
  • City Infrastructure Access Points
  • Tanks
  • Reactors
  • Metering Skids
  • Fuel Conditioning Skids
  • Separators
  • Hydrocyclones
  • Decompression Chambers
  • Thermal Processing Equipment