GN19D protective valve provides efficient guarantee for constant pressure and safe operation of fluid systems with precise and stable pressure control capability, reliable closing performance, and excellent adaptability, making it an ideal choice for pressure regulation in industrial and sanitary fields.

The GN19 constant pressure valve has the following characteristics:

Excellent pressure control: The opening and closing components are arranged along a single axis, and the pilot valve can achieve precise pressure control under any working condition. It can also respond to inlet pressure fluctuations, automatically adjust the opening of the main valve, and maintain a constant outlet pressure; Partial constant pressure valves can effectively reduce frequent start stop of water pumps, maintain preset working pressure, provide protection for the operation of water pumps in water wells, irrigation systems, etc., while saving electricity and eliminating water hammer phenomena.

Good closing performance: The unique closing mechanism can achieve complete flow interruption, maintaining the set outlet pressure even in a fully closed state, reducing downstream pipeline costs.

Anti clogging and self-cleaning: The pilot valve does not have a small fixed throttling channel like a needle valve, and has strong anti clogging ability; Even if blocked by foreign objects, the built-in self-cleaning mechanism can automatically open the blocking component and remove foreign objects.

Easy to maintain: simple structure, no need for tedious adjustments, good durability, almost no maintenance required, can reduce maintenance costs.

Diverse and adaptable designs: There are two types of constant pressure designs available: the V-type (commonly used as a safety valve at the rear of heat exchangers) that maintains inlet constant pressure, and the A-type (commonly used at the front of filling machines) that maintains outlet constant pressure; There are various connection methods, including clamps, welding, threading, etc., which can meet the needs of different pipeline systems; The nominal size covers a wide range and can adapt to pipes of different diameters.

Material and hygiene characteristics: The parts in contact with the medium are mostly made of corrosion-resistant stainless steel materials (such as 1.4404/316L), and some sealing materials comply with FDA standards. The hygiene design is suitable for industries with high hygiene requirements such as food processing, beverages, and pharmaceuticals.