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VCDMHF / VCDHHF series
High Pressure High Flow Diaphragm Valve – Pneumatic Actuating Operation

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  • UHP | Valves | Diaphragm Valves

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  • Dimensions
  • How To Order
  • Specification
  • Features

Dimensions

 

Part No.End ConnectionDimensions (mm)
InletOutletLhHW(Ø)FE(Ø)K
VCDMHFC-08M-1/2“ Male UCR82.618.0143.447.338.038.0M5
WB-08T-1/2“ Tube Butt Weld90.918.0143.4
47.338.038.0M5
VCDHHFC-08M-1/2“ Male UCR82.618.3143.4
47.338.038.0M5
WB-08T-1/2“ Tube Butt Weld90.918.0143.4
47.338.038.0M5


How To Order

UNILOK VCD series valves are ordered by part number as shown as below.

Example : The following part number,VCDLC 04M-PO-SL-EP is designated for Low Pressure Diaphragm Valve, both 1/4” Male UCR, Pneumatic 

Normal Open Operation, 316LSS, EP.


VCDMHFC- -04M-PCR- -SL-EPH-S001-PI-PN
Industry
Sector
Valve
Type
Connection Type
Flow Path
Pattern
Connectin
Size
Connectin Type (In detail)
Operation (Operation Type)
Handle &
Label Color
Bleed
Option
MaterialSurface
Finish Level
Option-2 (Open/Close Color)
Option-3 (Overall Body Length Size)
Option-4
(Seat Material)
Option-5 (Panel Nut)


① Type   ⑥ Connectin Type (In detail)   ⑪ Surface Finish Level
VC UHP   T Tube(U-**T, WB-**T)   BA Bright Annealing
          P Pipe(WB-**P)   EP Electro Polished
② Valve Type   M Male UCR(C-**M)            
DL Standard Low Pressure   F Feale UCR(C-**F)   ⑫ Option-2 (Open/Close Color)
DH Standard High Pressure   MR Rotable Male UCR(C-**MR)   None Open-Red, Close-Blue
DS Shut off               H Open-Blue, Close-Red
DDH Directional High Pressure   ⑦ Operation-1 (Operation type)            
DFL Forged Low Body   None / M Manual Indicator Handle   ⑬ Option-3 (Overall body length size)
DHHF High Pressure High Flow   RI Manual Round Indicator Handle   None Standard Length
DMHF Mid Pressure High Flow   MI Manual Indicator+Directional Handle   S001/KZ Low Pressure 1/2"(F)83=KZ Code,
Low Pressure 1/4"(F)76.2, (M)57/Low Pressure 1/2"(M)76.2
DLHF Low Pressure High Flow   PO Pneumatic - Normal Open  
DUHF Low Pressure Ultra High Flow   PC Pneumatic - Normal Close   S002/FN High Pressure 1/4"(F)76.2
BL Standard Low Pressure               S003 High Pressure & High Flow  1/2"(F) 120.9
BF Forged Body   ⑧ Handle & Label Color   76-S23 High Pressure 1/4", 76: Overall Length,
S23: Bracket Square Size
        None Blue
   Diaphragm Valve     R Red   L76.2 Low Pressure 1/4"(F)76.2 / Low Pressure 1/2"(M)76.2
   Bellows Valve     G Green   54 Low Pressure 1/4"(WB)54
          B Black   69 Low Pressure 1/2",3/8" (WB)69
③ Connection Type   V Silver            
U Unilok Tube Fitting   W White   ⑮ Option-5(Panel Nut)
C UHP UCR Fitting               None Not assembled Panel Nut
WB Butt Weld   ⑨ Bleed Option   PN Assembled panel Nut
FL Flanged   None No Bleed      
          3 Constant Bleed Ø0.3            
④ Flow Path Pattern   6 Constant Bleed Ø0.6  
For DBL and DBH series              
          ⑩ Material  
⑤ Connectin Size   LV 316L VAR            
4 1/4"   LF 316L SEMI F20            
6 3/8"   SL 316LSS            
8 1/2"              
12 3/4"                        
16 1"                        

Specification

Size1/2"
Orifice Size8.8
Cv Value1.00.75
Max. Working Pressure83bar
(1200psig)
207bar
(3000psig)
Max. Working Temperature

-10~80(14~176)

Actuator Pressure Rating5~7 bar (73~101psig)
Internal Leakage
Allowance - He
(Holding Time - Min 30 sec)
≤1x10-9 atm.cc/s
External Leakage
Allowance - He
(Holding Time - Min 1 min)
≤1x10-9 atm.cc/s


Features

A compactly designed body with minimal dead space. 

Body materials comply with SEMI F-20, “Specification for 316LSS Materials for UHP (Ultra High Purity) Grade Semiconductor Manufacturing Applications” 

Maximum flow capacity

Minimal particle generation

Minimal contributions of moisture, oxygen and hydrocarbon with UNILOK’s own special cleaning process in a certified clean room

Excellent finish level of wetted areas with UNILOK’s own electro polish process

Elgiloy® diaphragm material with strong durability as well as corrosion resistance for long cycle life

PCTFE seat material with remarkable chemical and thermal resistance

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