Pigging solutions

Quick Opening Closures (QOC)

Product description

Quick Opening Closures (QOC) are designed in order to provide a rapid access to any pressure vessel (Pig Traps, Filter)

NLS model (Segment type) or WOCC model (Yoke type) cover the QOC requirement for Horizontal or vertical use.

Product features:


Full compliant with UG 35 (Interlock safety device)
ASME B31.3, B31.4, B31.8
ASME VIII Div1 or Div2 with "U/U2 Stamped" and Client requirements.
Connection type: BW, flanged.

Material grades

ASTM A350 LF2 / ASME SA350 LF2
ASTM A105 / ASME SA 105
ASTM A694 F52 - F60 - F65 - F70 / ASME SA350 LF6 - SA765 GR IV - SA
ASTM A182 F316L - F51 - F53 / ASME SA 182 F316L - F51 - F53
Cladding : Grade 316 SS/ Inconel 625


Self energized gasket with anti-extrusion spring : NBR/HNBR (Nitrile), FKM (Viton), ED resistant, FFKM


Shop primer coating/ Client painting specification

NLS 64 Inch 600#

Interlock key device on QOC 60''

Segment type - NLS model

Production range

Pressure Range: from 150# up to 2500#
Size range: from 06'' up to 80'' and higher

Segment type - Horizontal use

Pipeline, Horizontal gas filters

Segment type - Vertical use

Vertical traps, gas filters

Clamp type - WOCC model

Production range

Pressure Range: from 150# up to 300#
Size range: from 06'' up to 20''.

Taylor made Solution: Remote operated

Production range

Applicable to clients requirements

Websites of the Group

Phocéenne SAS, Division Piping Technologies - Siège social / Registered office: 10 Boulevard de Pythagore, domaine de Couperigne, 13127 Vitrolles, France -
Capital social/ Paid capital € 50,000 - Chambre du Commerce / Chamber of Commerce RCS Marseille B 877951673 - TVA/ VAT No. FR63877951673
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