Environmental Chambers and Space Simulation Systems

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High Vacuum Components

Bemco Custom Chevron BaffleBemco Custom Elbow Assembly

Besides offering integration of leading manufacturer's high vacuum products, Bemco makes many components for installation in both our own products and in other vendors equipment.

Bemco's high vacuum components are not just another copy, but are superior solutions for the application. They are precision engineered for a specific application where a more common vendor's part will not do, or they incorporate refinements not yet available in commercial products. A custom liquid nitrogen chevron insert for a trap and an eight inch diameter compound elbow are shown above.


Bemco PV10 Right Angle Poppet ValveBecmo MCT12 Cold Trap

We also offer a standard line of both cold traps and right angle poppet valves. Shown at left is a Bemco PV10 Right Angle Poppet Valve and a Bemco MCT12 Round Cold Trap. The cold traps and poppet valves are all stainless steel except for the pneumatic piston. They are available in ASA flange, Conflat, and weld mounting.

Electropolish on poppet valves is standard. Cold traps are also electropolished to minimize LN2 consumption or the required size of a low temperature mechanical refrigeration system. They feature a positive creep barrier, are oversized for maximum conductance, and are optically dense. Standard sizes for ASA models are shown below.



PV Series Poppet Valve Models
Code
PV6 PV8 PV10 PV18 PV21 PV22 PV32 PV35
A
4" ASA 6" ASA 10" ASA 16" ASA 20" ASA 20" ASA 32 ASA 35" ASA
B
1250 2100 5300 21400 21400 25200 50000 60800
C
Yes Yes Yes No No No No No
D
5.750 8.000 12.000 18.000 21.250 22.750 32.000 35.000
E
80-110 80-110 80-110 80-110 80-110 80-110 80-110 80-110
F
Viton Viton Viton Viton Viton Viton Viton Viton
G
316 316 316 316 316 316 316 316
H
KF25 KF25 KF40 KF40 KF50 KF50 KF80 KF80
I
Yes Yes Yes Yes Yes Yes Yes Yes
J
Yes Yes Yes Yes Yes Yes Yes Yes

Code
Description
A
Nominal Size, Inches
B
Conductance, Liters/Second
C
Seals in Both Directions
D
Flange ID, Inches
E
Air Pressure, Psig
F
O-Ring Material
G
Material, Stainless Steel
H
Roughing Port, Standard
I
Position Indicators
J
Electropolish Finish


MCT Cold Trap Models
Code
MCT6 MCT8 MCT12 MCT18 MCT21 MCT22 MCT32 MCT35
A
4" ASA 6" ASA 10" ASA 16" ASA 20" ASA 20" ASA 32 ASA 35" ASA
B
800 1500 3500 11500 17500 20300 40000 48000
D
5.750 8.000 12.000 18.000 21.250 22.750 32.000 35.000
E
4.500 5.500 8.500 10.500 12.500 12.500 16.500 18.500
F
Yes Yes Yes Yes Yes Yes Yes Yes
G
316 316 316 316 316 316 316 316
H
Yes Yes Yes Yes Yes Yes Yes Yes
I
Optional Optional Optional Optional Optional Optional Optional Optional
J
Yes Yes Yes Yes Yes Yes Yes Yes

Code
Description
A
Nominal Size, Inches
B
Conductance, Liters/Second
C
Flange ID, Inches
D
Overall Height, Inches
E
Positive Creep Barrier
F
Material, Stainless Steel
G
Optically Dense
H
LN2 Level Controls
I
Electropolish Finish


Available Literature Includes:

AH Literature Link Bemco AH Series Space Simulation, Ultra High Vacuum, and Thermal Vacuum Systems. Coverage includes PCL-III Portable Liquid Chillers for cooling vacuum thermal shrouds, Bemcoil DE (double embossed stainless steel) Shrouds, Bemcoil FOS (flat one side) stainless steel shrouds and Bemco PV and MCT Poppet Valves and Traps. Document is 12 pages, 1,003 KB download.



The systems described above are our Standard Models. We make custom equipment to your specifications.  If you have any questions, need assistance in preparing a specification, or have a technical problem you want help with, we are ready.  Our quotations and advice are free.

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