Flowserve Gestra NRS 1-51 Level Switch / High Water Level Limiter
Shop the Flowserve Gestra NRS 1-51, a SIL 3 certified high water level limiter and level switch for superior boiler and tank safety. This 24V DC unit provides reliable overfill protection for critical industrial applications.
Flowserve Gestra NRS 1-51 Level Switch / High Water Level Limiter
The Flowserve Gestra NRS 1-51 is a high-integrity level switch engineered for critical safety applications as a high water level limiter. Certified for Functional Safety SIL 3 in accordance with IEC 61508, this device provides dependable protection for steam boilers, (pressurised) hot-water installations, and condensate or feedwater tanks. It works in conjunction with Gestra level electrodes (e.g., NRG 1…-51) to detect when the water level reaches the maximum permissible point, triggering an alarm and a switching output to prevent overfilling and ensure plant safety. Its robust design and self-monitoring capabilities make it an essential component for automated and compliant industrial systems.
Technical Specifications:
- Operating Voltage: 24 V DC +/- 20%
- Power Consumption: 7 VA
- Functional Safety: SIL 3 according to IEC 61508
- Switching Contacts: 2 change-over contacts, 250V T 2.0A
- Alarm Output: 24 V DC, 100 mA
- Minimum Conductivity: 10 µS/cm
- Ambient Temperature: Max. 55°C (131°F)
- Protection Class: IP 40 (front) / IP 20 (terminals)
| Brand | Flowserve Gestra |
|---|---|
| Model | NRS 1-51 |
GENERAL DELIVERY INFORMATION
Thank you for visiting and shopping at www.zxanhyd.com. Following are the terms and conditions for the Shipping Policy for ZXAN Hydraulic.
Orders will be processed and shipping during standard working hours (0830 – 1730 BST) Monday to Friday (excluding Bank Holidays)., are processed and despatched on the same business day. If we are experiencing a high volume of orders, shipments may be delayed by 1-2 Days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
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RETURNS POLICY
Our Return & Refund Policy provides detailed information about options and procedures for returning your order.
