Emerson XDR user manual

Piping

Figure 25 Oil rings on header and Liebert XD Flex Pipe connectors

Poppet Valve Face

Oil

Applicator

Spout

Rubber Ring

Around Poppet

Valve Face

Stainless Steel Delta Ring on Header Port Connector

9.Thread the union nut of the Liebert XD Flex Pipe coupling onto the port coupling to ensure the threads mate properly.

10.Using the wrench arrangement shown in Figure 26, torque the couplings to the values in Table 5.

NOTICE

Risk of twisted or kinked piping. Can cause flow restriction or leaks.

It is imperative that the brass body of the Liebert XD Flex Pipe coupling does not rotate while the couplings are being tightened. Failing to do so may damage the female coupling.

Table 5	Torque for connecting Liebert XD Flex Pipe to prefabricated piping
Coupling	Crowsfoot	Torque,
Size	Size, in (mm)	ft-lb (Nm)
RF08	1-3/16 (30)	25.8 (30-35)
RF12	1-5/8 (41)	48.0 (60-65)
RF16	1-31/32 (50)	62.7 (80-85)

Figure 26 Wrench arrangement for tightening couplings

Crowsfoot

Wrench holding brass body of female coupling stationary to prevent it from turning

Torque Wrench

25