Sanitary Mix-Proof Butterfly Valve Stainless Steel Manual

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Model NO.: YH-DF002
Working Temperature: Normal Temperature (-40°C<T<120°C)
Material of Seal Surface: Soft Sealed
Valve Body: Forge Welding
Application: Industrial Usage, Water Industrial Usage, Household Usage, Food, Beer, Beverage, Milk, Pharmacy
Stand: DIN, SMS, 3A, ISO
Size: Dn40-Dn100 1"-4"
Trademark: Yeahoo
Specification: CE, ISO
Origin: Wenzhou Zhejiang, China
HS Code: 8481804090
Applications
Mix-proof valve is a sanitary type, manual operation valves, butterfly vavle based on mature technology platform. Widely used in direct connection pipe to prevent mixing and pollution when the valve sealing was damaged in surface. Mainly used in the area of dairy, beverage, food, biological, pharmaceutical and personal care industries.
Operating Principle
This butterfly valve was manually operated by a handle.
Mix-proof valve normally status was closed(NC). the valve consists of a main valve body, two sealing and two plates, one or two mini-type, normally opened valve (a drain valve or a drain valve with an CIP cleaning valve) composition.
Main valve has two seal rings and two valve plates. with each other to form a leakage cavity. leakage fluid can leak into the leakage cavity and discharged through the drain valve. 
Meanwhile, if want to open the main valve, cleaning the leakage cavity first.
When the main valve was opening, vice-valve was closing.

Technical Data

Metal material
Product wetted
304L/316L (1.4307/1.4404) forged

Non-product wetted
304(1.4301)

We can provide EN 10204 3.1B certificate.

Seal material
Standard
EPDM
All seal materials comply with FDA 177.2600.

Options
NBR,FPM,Silicone
All seal materials comply with FDA 177.2600.

Temperature
Continuous working temperature
-20~+135ºC(EPDM)

Sterilization temperature
150ºC(max 20min)

Pressure
Working pressure
0~10bar(standard)

Control air pressure
5~8bar

Surface treatment
Internal surface
Ra≤0.8μm

External surface
R≤1.6µm

Connection
Connection standards
Welding end: DIN 11850 series0, 2

Welding end: Inch pipe standard

Connection methods: welding, thread, clamp, flange



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