ELSO Technologies Sdn Bhd
8E, First Floor,
Jalan Tun Dr. Awang,
Bukit Jambul,
11900 Bayan Lepas,
Penang, Malaysia.
+604-6301166
+604-6301167
+604-6301168
sales@elsotech.com

Mr Kwang (General Manager)
+6016-422 8644
 
+60164228644

Johor Branch
Lake View Apartment,
Jalan Austin Perdana 1,
Taman Austin Perdana,
81100 Johor Bahru,
Johor, Malaysia.

Chong CW (Sales Manager)
+6012-4767747
cwchong@elsotech.com

Selangor Branch
Puchong, Selangor.

Glenys Teoh (Sales Manager)
+6018-2810168
glenysteoh@elsotech.com

East Malaysia Branch
Lot 35, Lot 5277,
Lorong 9C1, Jalan Kapor,
93150 Kuching,
Sarawak, Malaysia.

Clement Lau (Sales Engineer)
+6019-8497663
clementlau@elsotech.com

ELSO Technologies Pte Ltd
Singapore Branch

1 Coleman Street
#10-06 The Adelphi
179803 Singapore.

Chew Peng Seng  (Sales Manager)
+65 9663 8176
pengseng@elsotech.com

VHS-10

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VHS-10  Diffusions Pumps Agilent Technologies


Available in 4-inch, 6-inch, 250-mm, 10-inch, and 400-mm sizes, the VHS series pumps are the fastest and cleanest diffusion pumps of their size available today. The VHS series patented Bulge Contour doubles gas capture and maintains lower pressure. All VHS series pumps have sight glass/fill and drain assemblies for continuous monitoring and easy maintenance of pump fluid. Finned boilers increase surface area, prolonging pumping fluid life. Full thermal protection and quick-cool coils are also standard. The 4-inch, 6-inch, and 10-inch pumps can be ordered with ASA or ISO flanges, standard or extended cold caps, and a variety of voltages.
  • Highest pumping speed available.
  • Fluid level sight glass provides quick indication of pump fluid status at all times.
  • Fill and drain assembly for pump oil.
  • High throughput, 5100-watt version available.
  • Fractionating jet purifies fluid.
  • High tolerable forepressure.
  • Full thermal protection.
  • Stainless steel pump body
  • Technical Specifications 
    Pumping Speed, Operating Range Pumping Speed, AVS 4.1 (1963) 3,650 l/s Air, 4,560 l/s He/H2 5,300 l/s Air
    Maximum Throughput 6.3 T-l/s (8.4 mbar l/s) in operating range 7.5 T-l/s (10.0 mbar l/s) @ 0.01 torr
    Operating Range 1.7 x 10-3 to <5 x 10-9 torr at 4400 W (2.3 x 10-3 to <6.5 x 10-9 mbar)
    Maximum Forepressure No Load: 0.65 torr (0.85 mbar) Full Load: 0.55 torr (0.72 mbar)
    Recommended Backing Pump ≥ 30 cfm (51 m3/hr)
    Backstreaming Rate, Standard Cold Cap <5.0 x 10-4 mg/cm2/min
    Warmup Time 15 minutes
    Cooldown Time 25 minutes
    Fluid Charge 1,000 cc
    Electrical Requirements 3 ph, 50/60 Hz, 208/240/380/480 VAC
    Pump Power 4400 watts
    Cooling Water Requirements 0.40 gpm (80 l/hr)
    Water Connections 1⁄8 in. FPT Tee

    Speed Curve Graph
    VHS-10 Diffusion Pump Speed Curve Graph
    Pumping Speed/Standard Cold Cap Pumping speed/Extended Cold Cap Throughput

    Outline Drawing
    VHS-10 Diffusion Pump Outline Drawing
Description Weight kg (lbs) Part Number
VHS-10 Pumps   ASA ISO
VHS-10 with standard cold cap, 208 V 68 (150) F0426307 L5920307
VHS-10 with extended cold cap, 208 V 68 (150) F0426317 L5920317
VHS-10 with standard cold cap, 240 V 68 (150) F0426308 L5920308
VHS-10 with extended cold cap, 240 V 68 (150) F0426318 L5920318
VHS-10 with standard cold cap, 380 V 68 (150) F0426326 L5920326
VHS-10 with extended cold cap, 380 V 68 (150) F0426336 L5920336
VHS-10 with standard cold cap, 480 V 68 (150) F0426309 L5920309
VHS-10 with extended cold cap, 480 V 68 (150) F0426319 L5920319
Accessories Weight kg (lbs) Part Number
Water-cooled baffle with ASA flanges 9.0 (20.0) F8600310
Water-cooled baffle with ISO flanges 9.0 (20.0) F8600311
DC-702 diffusion pump fluid, 500 cc (two required) 2.8 (6.0) 695472005
DC-704 diffusion pump fluid, 500 cc (two required) 2.8 (6.0) 695474005
DC-705 diffusion pump fluid, 500 cc (two required) 2.8 (6.0) 695475005
Centering ring for ISO foreline flange, 63K 0.5 (1.0) IC063SV
Instruction manual   699901023
Replacement Parts (six heaters required per pump)
2200 W, 208 V heater 0.5 (1.0) 647310140
2200 W, 240 V heater 0.5 (1.0) 647310150
2200 W, 380 V heater 0.5 (1.0) 647310160
2200 W, 480 V heater 0.5 (1.0) 647310170
2550 W, 208 V heater 0.5 (1.0) 647310145
2550 W, 240 V heater 0.5 (1.0) 647310155
2550 W, 380 V heater 0.5 (1.0) 647310165
2550 W, 480 V heater 0.5 (1.0) 647310175
Heater crush plate (covers both heaters; one required for pump; replace when either heater is replaced) 1.0 (2.0) K7667001
Heater clamping plate (one required per pump) 0.5 (1.0) R2667301
Replacement nickel heater wire (#10 AWG) 0.5 (1.0) 656179100
Replacement o-ring kit (kit contains: 1 inlet flange o-ring (butyl F0430001), 1 foreline flange o-ring (butyl 2-338), sight glass o-ring and gasket, 10 fill and drain o-rings (Viton 2-113)) 1.0 (0.5) K0377185
Thermal switch (set at 300° F 147 °C) 0.5 (1.0) 642906025
Extended cold cap 2.0 (0.9) L8917301

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