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SMYTIK (Kunshan) Precision Machinery Co.,Ltd

Contact person: Liu Zong

Mobile phone number: 19951158023

Email: lsy@smytikgroup.com

Website: www.smytikgroup.com

Address: Room 304, Room 8, No.1911, Shuixiu Road, Kunshan City, Jiangsu Province


High pressure manual diaphragm valve

High pressure manual diaphragm valve

  • Category:High pressure manual diaphragm valve
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  • Release time:2022-03-02 11:04:42
  • Product description

High pressure pneumatic diaphragm valve


The valve body

SUS316L VAR stainless steel double melting material for ultra-high purity applications.


The inner surface roughness can reach Ra 5 μin, can completely clean the flow passage:


The closure area is minimized;


Easy to purge;


Maximize traffic.



The diaphragm


Cobalt-based Super Alloy (UNS R30003) provides high strength and corrosion resistance.


Optimal design, long service life.



The seat


The fully enclosed seating design has the following advantages:


Excellent anti-expansion and anti-pollution capability;


Improved helium leak test performance;


Very few pellets are produced;


Long service life.


The high cleaning assembly and packaging is suitable for the high purity semiconductor industry.


Every product comes out of the factory and is helium tested.



Technical Data


Main Specifications
End connection specification
1/4"
Coefficient of flow(Cv)
0.27
Maximum service pressure
300pisg(206bar)
Operating temperaturePCTFE-40°C-80°C(-40° F-176° F)
PEA, Vespel-26°C-177°C(-15° F-350° F)
Leakage rate in valve body
1x10⁻⁹ sccs He
Leakage rate of valve body
1x10⁻⁹ sccs He



Class of product
levelBAEPSEP
Body materialSS316L
SS 316LVAR
Internal surface roughnessRa 10 μ inRa 5 μ in
grindingMechanical grinding processElectrolytic lapping
cleaningSkim cleaning + precision cleaning
packagingA single layerdouble




Material of product
The valve bodySS 316L/A479, SS316L / VAR/SEMIF20-0305
The diaphragm

Cobalt-based super alloy/ UNS R30003

The seatPCTFE, PFA,Vespel



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