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Appendix D
D.1
Specifications
Rigid Tubing
Flexible hose
D.2
Order Information (E.g. Swagelok)
Rigid Tubing
Flexible hose
Do not
D.3
Tubing Unions
Tubing Unions connect two pieces of the above ¼ in. tubing together. GE recommend:
▪
Swagelok: SS-400-6 Stainless Union, ¼ in. OD
▪
Ham-Let: 762L SS 1/4 Stainless Union, ¼ in. OD
D.4
Shut-Off Valve
If the oil supply or return valve is located more than 6 ft (1.82 m) above the base of the
transformer, use a Swagelok tube fitting (SS-4P4T Stainless Plug Valve, ¼ in.) or a Ham-
Let tube fitting (H800MSSL Stainless Plug Valve, ¼ in.) as directed in this procedure.
D.5
6 mm Tubing Adaptors
If ¼ in. tubing is not available, 6 mm stainless steel tubing may be used, but the
maximum tubing run may be reduced, and ¼ in. to 6 mm tubing adaptors must be used.
Consult with the GE Customer Service Centre. The adaptors should be Swagelok (SS-
6M0-R-4 Stainless Reducer, 6 mm OD – ¼ in. OD) or Ham-Let (767LT SS Stainless
Reducer, 6 mm OD – ¼ in. OD). At least eight of these are required for the installation.
Do not
warranty.
MA-005 - Minitrans Installation Manual - Rev 4.5
Tubing Specification and Ordering Details
¼ in. OD × 0.035 in. wall T316 seamless stainless-steel tubing (6.35 mm
OD × 0.889 mm wall) (ASTM A269 / A213).
¼ in. ID low pressure, 316 stainless steel braid over stainless steel metal
flexible hose with welded ¼ in. compression fittings on each end.
Rigid tubing can be ordered from Swagelok in advance of the
installation. For example, a 20-foot length would have part number SS-
T4-S-035-20 (see the Swagelok website
local Swagelok representative).
Flexible hose can be ordered from Swagelok but must be ordered in
custom lengths well in advance of the installation. For example, a
custom 8-meter FL series hose would have part number SS FL4TA4TA4-
800 (specified in centimetres) (see the Swagelok website
www.swagelok.com
or your local Swagelok representative).
use copper tubing (See Section D.6).
use 6 mm tubing without the above adaptors. To do so would void the
www.swagelok.com
or your
13-Aug-20
Page 41 of 86
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