

品牌: 韩国DRASTAR隔膜阀
售价: ¥9999
韩国DRASTAR核心阀门(UHP, Lok, NPT),Core Valve,歧管隔膜和波纹管阀,
Products Feature.
Manifolds Diaphragm and Bellows Valve
DRASTAR Core Valve is an advanced concept of valve that Drastar developed for ultra-high
purity specialty gases extensively used in the semiconductor manufacturing line,
bulk gas line and other facility lines. Core valves have integrated and improved all the merits of diaphragm valve,
bellows valve and needle valve to best work (Drastar Patent #10-1510987).
◈ Surface finishes to AP or B.A. 25Ra E.P. 10Ra or 5Ra
◈ Improved for micro and precise adjustment
◈ Pull and lock device (Drastar’s patent #10-1370537) prevents the knob’s self-turning
◈ Easy operation
◈ Applicable for 20bar(290psig) ~ max 750bar(11,000psig)
With DRASTAR’s patented (patent #10-1370537) “ push and lock type handle ”, you can operate it easily and stably;
“locking” by pushing down the handle will prevent any slight change of pre-set pressure value,
which could possibly be caused by any vibration from gas pipeline or ambient applications and
the other way “unlocking” by pulling it back enables you to adjust the pressure value freely again.
Ordering Information.
DVS-020-VH-AP4
BASICSERIESNUMBERBODYMATERIALWORKINGPRESSURECONNECTIONBODYPOLISHINGBODYSIZE 20, 50bar PCTFE 250, 500 750bar
Vesple(Optional) S = STS 316L Single melt D = STS 316L Double melt 020 = 20bar 050 = 50bar 250 = 250bar 500 = 500bar
700 = 700bar VH = UHP Male VM = UHP Male Rotatable VF = UHP Female Rotatable TS = Tube Butt
weld LO = Lock NP = NPT PT = PT AP = AP(Ry ≤ 25㎛) BA = BA(Ry ≤ 3.0㎛) EP = EP(Ry ≤ 0.7㎛) 4 = 1/4" 8 = 3/8" 2 = 1/2" 3 = 3/4"
Specification.
Ports Size 1/4" 1/2" 3/4" Cv Value 0.4 1.2 2.8 Design Proof Pressure 150% maximun rated Grade
AP (Ry ≤ 25㎛) BA (Ry ≤ 3.0㎛) EP (Ry ≤ 0.7㎛) Seat Material(DISK) PCTFE / VESPEL Body Material Stainless Steel 316L
or Stainless Steel 316L Double melt Handle Material Aluminum Max. Working Pressure Range 20bar, 50bar, 250bar, 500bar, 700bar
Operating Temperature -40°C ~ +70°C (-40°F ~ +165°F) Standard +250°C ~ +500°C (+328°F ~ +1000°F) Optional

产品特点。
歧管隔膜和波纹管阀 DRASTAR 核心阀 是 Drastar 为半导体制造线、大宗气体线和其他设施线广泛使用的超高纯度特种气体开发的先进阀门概念。
核心阀集成了隔膜阀、波纹管阀和针阀的所有优点,并进行了改进,以最佳工作(Drastar 专利 #10-1510987)。
◈ 表面处理至 AP 或 B.A. 25Ra E.P. 10Ra 或 5Ra ◈ 改进用于微调和精确调整
◈ 拉锁装置(Drastar的专利#10-1370537)防止旋钮的自动旋转
◈ 操作简单
◈ 适用于20bar(290psig) ~ 最大750bar(11,000psig)
采用Drastar的专利(专利#10-1370537)“推锁型手柄”,您可以轻松稳定地操作它;
按下手柄的“锁定”功能可以防止任何由气体管道或环境引起的微小振动所导致的预设压力值的任何变化,
而“解锁”功能则允许您再次自由调整压力值。

建议
各产品均考虑了最高的安全性和易操作性。然而,为了实现最安全和最有效的使用,
建议在各自型号的最高使用压力的95%以内使用实际使用压力,以使用最理想的压力。
为了实现精确和顺畅的运行并延长产品的使用寿命,强烈建议在最高使用压力范围内选择并使用型号。