- All Maxon top assembly enclosures meet approval sanctions: – NEMA 1, 3, 3S, 4, and 12; Available with NEMA 4X trim (optional) “NI” valves are FM approved for hazardous locations: Class I, Division 2, Groups A, B, C, and D: T5 (AC) Class II, Division 2, Groups F and G: T5 (AC) Class III, Division 2: T5 (AC)“NI” Valves are built in accordance with the Non-IncendiveComponent Criteria as outlined by NEC/NFPA 70-1996 Articles 500-2(a)(6)
- Sanctioned service valve approvals: – FM (Factory Mutual) sanctioned – IRI (Industrial Risk Insurers) approvable for block/bleed/vent systems – Contact your Maxon sales representative for international sanctions information
- Handles flowing fluid temperatures: – Rising stem bodies from -20°F (-28°C) to +140°F (+60°C) – Swinging gate bodies from -20°F (-28°C) to +250°F (+121°C) – Any ambient temperature from -20°F (-28°C) to +140°F (+60°C)
- Valve bodies designed to ANSI (American National Standards Institute) standards. ISO (International Standards Organization) standards also available
- Various application requirements met with manual reset or automatic reset motorized operators
- Minimize line pressure drops with straight-through flow swinging gate or rising stem (guillotine action) valve bodies
- Minimal field maintenance required
- Positive visual indication of valve body position is provided by large two-color open-shut indicator
- Bodies built for heavy duty industrial service of one-piece cast iron or cast steel
- Installation piping convenience obtained from field rotatable top assemblies
- Special operating features available in Special Service Packaged versions
- Micro-lapped seating wears in, not out
- Positive indication of valve body position provided through: – Auxiliary SPDT signal switches mounted inside valve top enclosure. – Proof-of-open and/or Proof-of-closed position switches
- Built-in over travel valve body design meets requirements of insurance standards
- External junction box requirement eliminated with built-in valve wiring compartment and electrical terminal block
- Manual reset valves may be mounted in overhead lines with use of wheel and chain option
- Companion flange sets available to simplify installation

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