Piping Technologies - Products quick opening closure

Quick Opening Closure (QOC)

Quick Opening Closures can be used to provide rapid and frequent access to any pressure vessel: Pig Traps, filters, coalescers, strainers, hydro cyclones...

Opening and closing safely by one man within one minute without effort

WOCC - Clamp type

Pressure Range from 150# up to 600#
Size range from 04'' up to 20'' and higher
Applicable for horizontal and vertical pressure vessels
Clamp segment to fixe the plug in the hub
Handwheel rotation actuates the clamp
The clamps are locked by the interlock system paddle in the closed position
'U' shape self energized, one-piece molded gasket, provides an optimal sealing and
full tightness on full pressure range
The range is designed according to ASME VIII Div1 UG 35 & Div2 and majority of
the client specification

NLS2K0 - Flexible Segment type

Pressure Range from 150# up to 900#
Size range from 20'' up to 60''
Applicable for horizontal and vertical pressure vessels
Flexible ring segment to fixe the plug in the hub
Quarter turn rotation of the lever actuates the segment
The lever is locked by the interlock system in the closed position
'U' shape self energized, one -piece molded gasket, provides an optimal sealing and
full tightness at low and high pressure
The range is designed according to ASME VIII Div1 UG 35 & Div2 and majority of the
client specification

NLS2K3 - Expandable Segment type

Pressure Range from 150# up to 2500#
Size range from 08'' up to 80'' and higher
Applicable for horizontal and vertical pressure vessels
Expandable segment to fixe the plug in the hub
Quarter turn rotation of the lever actuates the segment
The lever is locked by the interlock system in the closed position
'U' shape self energized, one-piece moulded gasket, provides an optimal sealing and
full tightness at low and high pressure
The range is designed according to ASME VIII Div1 UG 35 & Div2 and majority of the
client specification

Technical specifications

Design specification: ASME VIII Div1 UG35 & Div.2, ASME VIII Div1 with ''U Stamped'' and Client requirement.
Ends Design Specification: ASME B31.3, B31.4, B31.8, ASME VIII Div.1
Connection type: BW, flange

Materials of construction

ASTM A350 LF2 / ASME II SA350 LF2
ASTM A105 / ASME II SA 105
ASTM A694 F52 / F60 / F65 / F70
ASTM A182 F51 / F53
Elastomeric sealing: Nitrile, Viton, ED resistant
Standard finish: Shock primer coating
Standard closure protection: Rust preventative, final paint after welding by client
Special closure protection: Grade 316 Stainless Steel or Inconel 625 weld overlay

Quick Opening Closure (QOC)

Technical specifications

Materials of construction

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about the renewal of metal workers labor contract

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by Maurizio Fersini and Fabrizio Filaferro (Allied Group)

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