Description:
PALL RC861CZ090ZSSYM is a premium differential pressure switch with dual visual indicators (red and green LED), tailored for precise monitoring of industrial hydraulic and lubrication filter systems. It delivers real-time differential pressure detection across filter elements, activating a reliable single-pole double-throw (SPDT) electrical signal upon exceeding the preset threshold, while the dual-LED indicators offer clear on-site status identification for maintenance teams—red for alarm and green for normal operation. Built with a robust die-cast aluminum housing and fluorocarbon (FKM) seals, this switch is designed for direct mounting on PALL filter housings via Deltadyne ports, boasting a standard Hirschmann DIN43650 4-pin connector for seamless integration with control systems. It excels in harsh industrial environments with resistance to high pressure, extreme temperatures, and various hydraulic fluids, making it a trusted choice for manufacturing, construction machinery, and power generation applications to maintain system cleanliness and reduce unplanned downtime.
Core Advantages:
- Triple Alert System: Combines electrical signal for remote control, red LED for alarm, and green LED for normal operation, ensuring filter clogging is detected promptly and accurately without omission.
- Heavy-Duty Durability: IP67 protection and corrosion-resistant aluminum housing enable stable operation in dusty, high-vibration industrial settings, extending service life and reducing replacement costs.
- Seamless Integration: Deltadyne port compatibility and standard Hirschmann connector allow quick assembly with PALL filter housings and easy connection to PLC/DCS control systems, minimizing installation time and labor costs.

Q1:What is the product situation and warranty like?
A:Brand-new genuine items. 1-year warranty included.
Q2:What is your payment terms?
A:T/T, Paypal supported.
Q3: What is the delivery time for the product? Is there sufficient inventory?
A:Standard models in stock, shipped in 3–5 business days after payment. Scarce models require manufacturer ordering—contact customer service for timelines.
Q4:Shipping & Tracking
A:DHL/FedEx/UPS available.Tracking number + link provided post-shipment. Full-process monitoring by our team.
Q5:Packaging & Safety
A:Original brand packaging with reinforced protection (foam, sealed cartons, wooden crates for precision gear). Moisture & impact resistant.