S4PDV-SW-C-P S4PDVN-SW-C韩国TKF原厂

S4PDV-SW-C-P S4PDVN-SW-C韩国TKF热销型号

S4PDV-SW-C-P S4PDVN-SW-C韩国TKF全国总代理

Low Pressure Pneumatic Diaphragm Valve (PDVN)


■ Reduced inner capacity.
■ Electropolished, D.I. water cleaned, assembled, tested and packaged in a certified clean room.
■ Minimal contributions of Moisture, Oxygen and Hydrocarbon.
■ Permanently heat code laser marked; material traceable to original mill certificate of test.
■ Hastelloy? C-22TM and custom configurations available upon request. 

  23-Low Pressure Pneumatic Diaphragm Valve (STD TYPE).gif
Major Specifications    

Size1/4″3/8″, 1/2″3/4″
Cv Value0.30.70.7
Orifice Size4.5mm7.8mm7.8mm
Max. Working Pressure (G.)1MPa

Operating Pressure (G.)0.4~0.6MPa

Max. Working Temp.PCTFE : -10℃ ~ 80℃ / PI,PFA : -10℃ ~ 150℃

Internal Leakage Allowance (He)
Test Pressure ≤ 1×10-2 Torr
Holding Time ≥ 15 sec. 		1x10-10Pa · m3/s

External Leakage Allowance (He)
Test Pressure ≤ 1×10-2 Torr
Holding Time ≥ 1 min. 		1x10-10Pa · m3/s

Particle Inspection (EP only)
Pressure : 60~80psi N2 Gas
Sample Volume : 1CFM
0.1? and Larger 		No count

Product Grade

GRADEAPBAEP
Inner
Surface
Roughness 		Ry ≤ 25?
Cut off Length : 2.5mm
Measuring Length : 12.5mm 		Ry ≤ 3.0?
10 μinch Ra(Avg.)
Cut off Length : 0.8mm
Measuring Length : 4mm 		Ry ≤ 0.7?
5 μinch Ra(Avg.)
Cut off Length : 0.25mm
Measuring Length : 1.25mm
PolishingMachining FinishMachining FinishElectro Polishing Finish

Material

NO.NAMEMATERIAL
1Body 316L Stainless Steel
316L Stainless Steel Remelted
304 Stainless Steel
2SeatPCTFE / PI / PFA
3DiaphragmNi-Co Alloy
4HandleALUMINUM

Ordering Number

MATERIALSIZECONNECTIONOPERATION METHODOPTIONGRADE





S316L Stainless Steel41/4″VMMFS MaleCNormally Close×47Constant Bleed ?0.3APAP Grade
D316L Stainless Steel Remelted63/8″VFMFS FemaleONormally Open×59Constant Bleed ?0.6BLANKBA Grade
4S304 Stainless Steel81/2″SWLok----PEP Grade
--123/4″TWButt Weld------