Stainless Steel Sanitary Pneumatic Diaphragm Valve

Sanitary Diaphragm Valve 

Application 

AV-4M series is a manual type sanitary diaphragm valve, which is widely used in food, beverage, dairy, brewing, pharmaceutical industries, etc. It is excellent for flow control as well as for open/close duties. 

Materials 

Steel parts: Stainless steel AISI 316L / 304 (forged) 
Diaphragm: EPDM + PTFE 

The seal materials comply with FDA177.2600 standard. Using proprietary technology, the diaphragm uses a combination of EPDM and PTFE, which is secured using SS bolts. The sealing part where contact with the medium is of PTFE material, it has good cold resistance -13° F (-25° C), excellent heat-resistance 482° F (+250° C), tolerance to most chemicals, and excellent abrasion resistance to medium flow. 

Standard Design 
· Standards: DIN, 3A, SMS, ISO / IDF, BS / RJT, ASME / BPE. 
· The parts mainly include: A hand wheel, diaphragm and valve body which are assembled together with bolts and nuts. The body can be two ways or three ways. 
· End connections: Butt-welded, sanitary clamp, or others upon request 
· Body type: T-type tee, U type tee, Mini type, tank bottom type, etc. 

Technical Specification 
· Size available: 1/4\", 1/2\", 3/8\", 3/4\", 1\", 1 1/2\", 2\" 2 1/2\", 3\" 
· Max. Working pressure: 147psi (10bar) 
· Temperature range: 14 ~ 248° F (-10 ~ 120° C), EPDM 
· End connections: Butt-welded, sanitary clamp, T-type tee, U type tee, Mini type, tank bottom type etc. 
· Inside polishing: Ra 16-32& micro; In (0.4 ~ 0.8µ M) 
· Diaphragm available: EPDM+PTFE / EPDM / Silicon / FPM (Viton) 
· Available for CIP/SIP. 

Technical Parameters 
Steel materialProduct wetted partsAISI 316L / 304 forged 
(1.4404 / 1.4306)Provided with material inspection report 
Other steel partsAISI 304 
Seal materialStandardEPDM+PTFEAll seal materials comply with FDA 21CFR117.2600 
OptionsVMQ 
PressureWorking pressure0 ~ 10bar (0 ~ 145psi) 
Control air pressure5 ~ 8bar (70 ~ 120psi) 
TemperatureWorking temperatureEPDM: 14 ~ 248° F (-10 ~ 120° C) 
VMQ: -58 ~ 356° F (-50 ~ +180° C) 
FPM: -22 ~ 446° F (-30 ~ +230° C) 
Sterilization temperature302° F (150° C, Max. 20 min) 
Surface treatmentInside surface treatmentRa 16 ~ 32µ In (0.4 ~ 0.8µ M) 
Outside surface treatmentRa 32 ~ 63µ In (0.8 ~ 1.6µ M) 
ConnectionThe welding diameterWelding ends: 
DIN 11850-2 with 11850-1 / SMS / 3A / ISO Series, etc. 
End connections: Butt-welded, sanitary clamp, T-type, U-type or others upon request. 
Pneumatic controlNormally Closed (NC) - Air to open and spring to close; 
Normally Open (NO) - Air to close and spring to open; 
Air to Air (AA) - Air to open, air to close. 

Optimal Installation Angle 

Due to the structure feature, 15° ~ 30° Is the optimal angle for installation, which makes complete drainage after cleaning and keeps no residue.