LESER Critical Service Safety Valves … … combine safety valve know-how with a level-based PTFE equipment and lining concept. All components of Critical Service safety valves are made with PTFE-lined materials, including the permanently medium wetted inlet area composed of a nozzle and a disc, the additional protection of the bonnet area by means of a bellows and all components of the inlet and outlet areas. • Designed and manufactured according to the highest standards • Reach their full lift within a pressure increase of 10% above the set pressure • Are characterised by longstanding proof in service. • Are developed and optimised in close cooperation with plant engineers and service specialists to protect processes with highly corrosive and toxic media. • Meet the highest requirements of end customers, OEMs and planners. • Are approved by all important classification societies worldwide. This ensures the worldwide applicability of LESER Critical Service safety valves. • Designed in accordance with numerous regulations, labelled, produced and approved in accordance with: CE marking in accordance with Pressure Equipment Directives 97/23/EC and DIN EN ISO 4126-1 UV stamp as per ASME Section VIII Division 1 VdTÜV approval as per the Pressure Equipment Directive, EN ISO 4126-1, TÜV SV 100 and AD 2000-Merkblatt A2 AQSIQ based on the approvals acc. to AD 2000-Merkblatt A2 Eurasian Custom Union: as per EAC - Eurasian Conformity

ADVANTAGES

• PTFE parts in different designs for optimized resistance to highly-corrosive media
• Economical alternative to high-alloyed materials
• Carrier gas blanketing using double-walled pipes is possible

TECHNICAL SPECIFICATIONS

APPROVALS

INDUSTRIES

• Chemical Industry (Chlorine manufacture and processing; Chemical plants and pipelines; Reduced media such as acids or lyes)