SPX TG H15-50, Instruction Manual, Page: 45 / 110

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Bc
Bd
Bc
Bd
PQ
GS
Be
Bc
Bd
PQ
Be
Bc
Bd
GS
2xBi (TG H2-32/3-32) 2xBi (TG H2-32/3-32)
2xBi (TG H2-32/3-32)
2xBi (TG H2-32/3-32)
A.0500.351 – IM-TGH/07.02 EN (10/2015)
3.18.8.6 Secondary connections
Several connection types for circulation, quench or flush on shaft sealing are possible in accordance
to ISO-code or to API-plan.
Overview possible configurations for shaft seal circulation, quench and flushing.
Shaft sealing ISO 5199 code API 610 plan
PQ 02,03,04,05,06,07,08,09,10,11,12,13 2,11,12,13,21,22,23,31,32,41,51,52,53,54,61,62
GS 02,03,04,05,06,07,08 2,11,12,13,21,22,23,31,32,41
GG, GCT, GCQ,
GCD-tandem
02,03,04,05,06,07,08,09,10,13 2,11,12,13,21,22,23,31,32,41,51,52,61,62
GD,GCD 08,09,11,12,13 51,53,54,62
Examples:
API plan 02/ ISO code 00 – Circulation not provided - but possible
Connections are plugged and can be used for possible future venting of the shaft sealing space or to
connect circulation or flushing. This configuration is standard in TopGear H-range.
API plans 11, 13, 21/ ISO codes 02, 03, 06, 07 – Circulation pumped liquid
Recirculation of the pumped product through an orifice either from the pump discharge to the shaft
seal chamber or from the shaft seal chamber to the pump suction side. The fluid returns
internally. Some restriction is needed to reduce capacity.
For viscous pumped liquid it is favourable for easy evacuating of air to connect the seal chamber to
the pump suction provided the suction pressure is near or above atmospheric pressure and there is
no danger that air is sucked through the seal.