Showing posts with label asco valves. Show all posts
Showing posts with label asco valves. Show all posts

Tuesday, June 14, 2011

Making Swagelok connections

    The DXR-GM cell and G-01 control box use Swagelok connections throughout.  In the course of experimental work you will sometimes need to break or re-make some of these couplings.  Swagelok issue the following rules for these procedures.

1. New installations - making a connection for the first time.

    Assemble the components of the joint and make the joint finger-tight.  Mark each part with a pen or pencil.  Hold BOTH parts of the joint with spanners.  Then for ¼" diameter tube, tighten by 1¼ turns.  For 1/8" or 1/16" tube follow the same procedure but tighten by only ¾ turn.

2. Re-making joints.

    Assemble as above and make finger-tight.  Then with spanners make a further ¼ turn (all tube sizes).


see also :OPERATING INSTRUCTIONS for the G-01 GAS-MEMBRANE CONTROL BOX

Friday, April 1, 2011

STEAM / CONDENSATE SYSTEMS VALVES

When the operating pressure is 80 psi and above, the system shall be considered high pressure. Where operating pressures is between 15 – 79 psi, the system shall be considered medium pressure. When the operating pressure is below 15 psi, the system shall be considered low pressure. In order to improve standardization and quality, steam/condensate system valves, operating in the medium and low pressure class, shall utilize the same type of valves per the following size/application schedule:



Size Range
Application
Operating Pressure
Valve Type
¼” – 2”
Steam/Condensate
80 psi & above
A1
¼” – 2”

Steam/Condensate

Below 80 psi
A2
2 ½” – 8”
Steam/Condensate
80 psi & above
B1
2 ½” – 8”
Steam/Condensate
Below 80 psi
B2
10” & up
Steam/Condensate
80 psi & above
C1
10” & up
Steam/Condensate
Below 80 psi
C2
¼” – 3”
Domestic Hot/Cold Water
125 psi & above
D1
¼” – 3”
Domestic Hot/Cold Water
Below 125 psi
D2
4” & up
Domestic Hot/Cold Water
125 psi & above
E1
4” & up
Domestic Hot/Cold Water
Below 125 psi
E2
¼” – 3”
Chilled Water
Below 125 psi
D2
4” – 10”
Chilled Water
Below 125 psi
E2
12” & up
Chilled Water
Below 125 psi
F1
¼” –  3”
Condenser Water
Below 125 psi
D2
4” & up
Condenser Water
Below 125 psi
F1