Danfoss OSQA Flow Amplifier Installation Guide

August 29, 2024
Danfoss

Installation Guide
Flow Amplifier
OSQA, OSQB
1 50R99 17

OSQA Flow Amplifier

Max. tightening torque for screwed connection

Max. tightening torque for screwed connection


| Tilslutning Connection Anschluss Raccordement
PP, LS| P, T, L, R| HP, HT, CR, CL, EF
Screwed connection| G 1/4| 7/16-20 UNF| G 1/2| 3/4-16
UNF| G 3/4| 1 1/16-12 UNF
with cutting edge| 4 daNm
350 lbf in| | 10 daNm
890 lbf in| | 16 daNm
1400 lbf in|
with copper washer| 2 daNm
180 lbf in| | 3 daNm
270 lbf in| | 5 daNm
440 lbf in|
with aluminium washer| 3 daNm
270 lbf in| | 8 daNm
700 lbf in| | 13 daNm
1150 lbf in|
with O-ring| | 2 daNm
180 lbf in| | 6 daNm
530 lbf in| | 9 daNm
800 lbf in

Mounting screws

M 10 × 1,5 3/8-16 UNC 7/16-14 UNC
3.0 ± 0.5 daNm 4.0 ± 0.5 daNm 5.5 ± 0.5 daNm
270 ± 45 lbf in 350 ± 45 lbf in 490 ± 45 lbf in

© Danfoss A/S, 2014-03 L1406554
HI.25.B4.93 • Rev BB • Mar 2014

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