Intermediate nut check valve ZHF-ZL type

DONJOY sus 304 316L 1.5" hygienic welding check valve 

The check valve has the same flux as the passage, minimal flow resistance, no noise on opening and closing, no dead angle, zero pressure and no leakage, suitable for vacuum environments, and various designs.

Hygienic check valve application

Check valve is a valve that prevents the fluid from flowing back and ensure to flow in only one direction,

It can be used to prevent the flow less from returning avoid pipe hammering.

It is used in the food processing ,beverages,wine ,oil,cosmetics,pharmaceutical and chemical industries.

Different connection ends

Hygienic check valve performance curve

Hygienic check valve product drawing

Package

By air/express:Carton box

By sea/land/train:Wooden box

●Specifications: 1"-4", DN25-DN100

●Material: 316L/1.4404, ASME BPE 316L 1.4435 NB2 Fe≤0.5%

●Pressure: vacuum to 10bar (1.0 Mpa)

●Temperature: -20℃ to +150℃, Depending on the seal material

●Sealing: EPDM FKM HNBR PTFE

●Connection standard: DIN SMS ISO IDF RJT BS4825 ASME BPE 3A DIN11864 DIN11853

●Connection method: Thread, clamp, welding, flange

●Drive mode: manual

●Finish: Ra≤1.0um

●Certification: FDA 177.2600; Glass II USP Glass VI Chapter 88; GB4806.11; EG VO/1935-2004; PED/97/23/EC.