Technical Features

●Size: 1.5"-4",DN40-DN100
●Material: 304/1.4301, 316L/1.4404, ASME BPE 316L 1.4435 NB2 Fe≤0.5%
●Pressure: vacuum to 10bar (1.0 MPa)
●Temperature: EPDM -20 ℃ to +130℃, Depending on the seal material
●Seal: EPDM SILICON FKM FFKM HNBR FVMQ NBR
●Connection standard: DIN SMS ISO IDF RJT BS4825 ASME BPE 3A DIN11864 DIN11853
●Connection method: thread clamp, welding, flange
●Drive mode: manual, pneumatic.
●Surface: Ra≤0.8μm; MP=Ra≤0.3μm; EP=Ra≤0.3μm
●Certification: FDA 177.2600; 3A-18-03; Glass II USP Glass VI Chapter 88; GB4806.11; EG VO/1935-2004; PED/97/23/EC 

Double seat seal protection, Internal 
leakage can be observed, Valve cavity can be 
cleaned, Zero pollution risk

Product description
DF-FHB series mixproof double seat butterfly valve is widely used in various industrial fluid process applications such as food, pharmaceutical, beverage, beer, liquor, water treatment, cosmetics, new energy, daily washing and so on. The mixproof butterfly valve provides an easy and safe means of material separation to prevent accidental mixing of materials in the event of damage to the seal. It is most commonly used to isolate materials that require safe separation and a single set of CIP cleaning (not a valve array assembly), or into the tank assembly terminal (eg, CIP return) or CIP solution into the tank (by cleaning the ball).