Pneumatic timer Pneumatische Zeitglieder

time delaypanel-mountedpanel-mount

Product overview
KENDRION pneumatic timers (time-delay valves) provide precise timing control of pneumatic pressure signals without electrical components. Designed as auxiliary valve devices, they deliver switch-on or switch-off delays where electrical power is unavailable or not permitted. After assessment to EN 13463-1, KENDRION pneumatic timers are not classified under ATEX and can be used in IIG/IID hazardous areas. Typical applications include fire-safety systems, mining, and oil & gas installations.

Short description
Precise, purely pneumatic time control of pressure signals; configurable time ranges depending on product series; no electrical parts.

Key features

• No electrical components: fully pneumatic operation
• Adjustable time ranges by series: from 0.3 s up to 100 h (product-dependent)
• Time control for panel mounting via centrifugal rotor with reduction gear (for 5/2 series)
• Short-interval models use an adjustable vacuum principle and a 3/2 poppet valve (NC or NO)
• ATEX assessment per EN 13463-1: not ATEX-classified; usable in IIG/IID zones
• Typical applications: fire protection, mining, oil & gas
• Former brand name: Kuhnke

Example products (selection)

• 51.006 US | 0.5 - 60 s | 3/2-way NC | 1.5 - 8 bar | 1/8 NPT
• 51.006.00 | 0.5 - 60 s | 3/2-way NC | 1.5 - 8 bar | M5
• 51.006.01 | 0.5 - 60 s | 3/2-way NO | 1.5 - 8 bar | M5
• 51.006.01 US | 0.5 - 60 s | 3/2-way NO | 1.5 - 8 bar | 1/8 NPT
• 51.012 US | 1 - 120 s | 3/2-way NC | 1.5 - 8 bar | 1/8 NPT
• 51.012.00 | 1 - 120 s | 3/2-way NC | 1.5 - 8 bar | M5
• 51.012.01 | 1 - 120 s | 3/2-way NO | 1.5 - 8 bar | M5
• 51.018.00 | 3 - 180 s | 3/2-way NC | 1.5 - 8 bar | M5
• 54.021 | 0.3 - 10 s | 5/2-way | 0 - 10 bar | M5
• 54.025 | 0.3 - 10 h | 5/2-way | 0 - 10 bar | M5

Specifications / technical data

• Medium: compressed air, non-lubricated
• Time ranges: product-dependent, from 0.3 s up to 100 h
• Functions: 3/2 (NC/NO) and 5/2
• Pressure range: depending on series, typically 1.5 - 8 bar or 0 - 10 bar
• Connections: M5 or 1/8 NPT (type dependent)
• Mounting options: mounting plate or switch-panel installation (type dependent)
• Ambient temperature: typically -10 to +60 °C (type dependent)
• ATEX: after EN 13463-1 assessment not subject to ATEX; suitable for IIG/IID areas