Description

The Ross Controls 492K87 is a valve body service kit designed for the 27 Series (and related families) of inline poppet directional control valves, covering the 3/8" body size, 4-way (4/2) function, base-mounted configuration. It is compatible with Ross Series 19, 21, 27, 31, 35, 80, CP, CX, LF, LX, DM2D, W60, W64, W65, W70, and W74 valve bodies of this port size and function. Refer to manufacturer documentation to confirm compatibility with your specific application.

This kit supplies all components required for complete reconditioning of the valve body, including poppets, spindles, gaskets, seals, and instructions for use. The 27 Series poppet valve it services operates on filtered compressed air across an inlet pressure range of Fifteen to One Hundred Fifty (15 to 150) psig for port sizes 1/4" to 1-1/2". Valve body construction is acetal poppet design with standard NPT port threads (BSPP variants are designated with a "D" prefix in the parent valve model number).

The 27 Series platform for which this kit is intended is TÜV Rheinland SIL 2 / PL c certified per IEC 61508, IEC 61511, and EN ISO 13849-1, and achieves SIL 3 / PL e in redundant configurations — service kit quality directly affects these safety ratings. Ambient and media temperature range is 40° to 175°F (4° to 80°C).

Technical Specifications

• Brand: Ross Controls
• MPN: 492K87
• Type: Valve Body Service / Repair Kit
• Description: 3/8" Base-Mount, 4-Way (4/2), Valve Body Service Kit — Series 27
• Compatible Valve Series: 19, 21, 27, 31, 35, 80, CP, CX, LF, LX, DM2D, W60, W64, W65, W70, W74
• Port / Body Size: 3/8 in NPT
• Valve Function: 4-Way (4/2)
• Mounting Style: Base (Inline)
• Valve Construction: Poppet; Acetal
• Kit Contents: Poppets, spindles, gaskets, seals, and instructions
• Flow Media: Filtered air (5 micron recommended)
• Inlet Pressure Range: 15 to 150 psig (1.0 to 10.3 bar)
• Maximum Design Proof Pressure: 150 psig (10.3 bar)
• Ambient / Media Temperature: 40° to 175°F (4° to 80°C)
• Thread Standard: NPT (standard); BSPP available on parent valve
• Safety Certification: TÜV Rheinland SIL 2 (IEC 61508 / IEC 61511), EN ISO 13849-1 PL c/d — applicable to parent valve platform
• Country of Origin: United States