Netafim Pressure Regulators

Netafim pressure regulators are precision devices engineered to maintain a constant, pre-set downstream pressure in drip irrigation systems, protecting sensitive components and ensuring uniform water application.

Physical Construction and Specifications
The regulators are constructed from durable, corrosion-resistant polymers and engineered plastics. The product line comprises several series distinguished by their design, inlet/outlet configuration, flow capacity, and preset outlet pressure. Key configurations include multi-outlet manifold regulators, inline threaded (FPT/MPT) regulators, and wide-range high-flow models. Each regulator is clearly marked with its specific preset pressure rating and compatible flow range.

Functional Mechanism and Design
These devices utilize a spring-and-diaphragm mechanism. When upstream pressure enters the regulator body, it acts against a pre-calibrated spring via a flexible diaphragm. This mechanical feedback loop automatically adjusts an internal valve to restrict flow, maintaining the downstream pressure at the factory-set value (e.g., 12, 15, 20, 25, 30, 35, 40, 45 PSI) despite fluctuations in the incoming supply pressure. This design ensures stable operation critical for pressure-compensating emitters.

Target Applications and Performance
This product line is engineered for commercial drip and micro-irrigation systems across agriculture, horticulture, and landscaping. Its primary function is to protect downstream components (such as drip lines and emitters) from pressure surges and to ensure hydraulic uniformity across zones, which is essential for consistent crop watering and efficient water use. Specific models are designed for manifold distribution, mainline control, or high-flow system protection.

Application Specifications and Protocol
Regulators are installed inline in the irrigation system, typically after filters and control valves. Selection is based on the required outlet pressure for the emitter type, the system's maximum flow rate (GPM), and the pipe thread size (e.g., 3/4", 1", 1-1/2", 2"). Multi-outlet models are connected directly to a mainline to create a regulated distribution manifold. Installers must ensure flow direction matches the marked arrow on the regulator body.

Handling and Safety
The plastic components should be protected from impact during installation and from prolonged direct ultraviolet exposure if used above ground. The internal mechanism contains no user-serviceable parts. Regulators should be installed in accessible locations for monitoring and should be protected from freezing. No specific chemical hazards are associated with the materials.