Overview
The Parker L6653921153 solenoid air control valve is a Valvair II Series double solenoid, manifold-mounted directional control valve engineered for precise pneumatic actuation in industrial automation systems. This pilot-operated valve combines robust construction with encapsulated solenoid coils for low-power consumption and extended service life. The valve features all-ports-blocked (neutral) spool design, making it ideal for inching applications such as controlling gate and butterfly valve positioning in ready-mix concrete plants, pump systems, and mobile hydraulic equipment.
Key Features
- Double Solenoid Operation: Dual electromagnetic actuators provide positive control in both directions with electric over air or pilot-operated actuation
- 4-Way, 3-Position Design: Delivers directional control with all ports blocked in neutral, preventing drift in load-holding applications
- Pilot-Operated Configuration: Uses internal line pressure and pilot valve (K175903553 compatible) for reduced solenoid power consumption
- Encapsulated Solenoid Coils: Epoxy-encapsulated for superior durability, low electrical demand, and extended coil life
- Synthetic Rubber Seals: O-ring seals minimize compression and friction for consistent performance across temperature ranges
- Horizontal Mounting: Designed for manifold or subbase mounting in industrial control panels and mobile equipment
Technical Specifications
- Valve Type: Double Solenoid, Pilot-Operated Directional Control
- Series: Valvair II
- Port Configuration: 4-Way, 3-Position, 5-Port
- Port Size: 3/8 inch NPT
- Solenoid Voltage: 120 VAC 60 Hz / 110 VAC 50 Hz
- Nominal Cv: 4.8
- Operating Pressure Range: 35–140 PSI (minimum pilot pressure 35 PSI)
- Seals: Synthetic Rubber O-Ring
- Mounting: Manifold or Subbase (plug-in design)
- Coil Design: Encapsulated for low power consumption
- Spool Type: All Ports Blocked (Neutral)
- Pilot Valve Solenoid: K175903553
- Seal Repair Kit: K352126
- Spool Only: K343124
Typical Applications
The Parker L6653921153 is widely deployed in pneumatic and electro-pneumatic control circuits, including:
- Ready-mix concrete plant gate and butterfly valve inching (opening/closing control)
- Mobile hydraulic equipment pump and boom control
- Truck-mounted lift and dump body actuation
- Automotive transmission and braking system pneumatic sequencing
- Power transmission equipment directional control
- Industrial automation and manufacturing press and clamping circuits
Compatibility & Replacements
Compatible With
- Parker Schrader Bellows manifolds and subbases rated for 3/8 inch porting
- Air and pilot-operated solenoid control systems (120 VAC / 110 VAC)
- Pneumatic logic circuits requiring directional control with load-holding capability
- Industrial control panels and truck-mounted hydraulic systems
Replaces / Drop-In Replacement For
- Schrader Bellows L665-39-211-53 (same part number, alternate format)
- Parker 705033AT (OEM cross-reference)
- L6653821153 (non-lockable override variant; L6653921153 with lockable override is suitable replacement)
Works With
- K175903553 Pilot Valve Solenoid
- K352126 Seal Repair Kit
- K343124 Spool Assembly
- Parker subbase manifold systems
- Standard pneumatic hoses and fittings (3/8 inch NPT)
