Danfoss AB-QM 4.0 Flexo Pressure Independent Control Valves Installation Guide

Danfoss AB-QM 4.0 Flexo Pressure Independent Control Valves

Feature

• MAINTENANC FREE

• -10 … 95°C

• PN 25

• Δpmax. = 600kPa (6 bar)

Installation

Note:
In cooling application depending on design condition and humidity, Flexo set shall be insulated fully with vapor tight insulation.

Filter cleaning

Operation

Shut-off / Maintenance

Flushing of main pipe

Backward flushing

Forward flushing

Sizing

Sett i ng| DN15 L F| DN15| ON 15 H F| DN20| DN20HF
---|---|---|---|---|---
L/h| L/s| GPM| L/h| Us| GPM| L/h| L/s| GPM| L/h| L/s| GPM| L/h| L/s| GPM
10%| 20| 0.006| 0.09| 65| 0.018| 0.29| 120| 0.033| 0.53| 110| 0.03| 0.48| 190| 0.053| 0.84
15%| 30| 0.008| 0.13| 98| 0.027| 0.43| 180| 0.050| 0.79| 165| 0.05| 0.73| 285| 0.079| 1.25
20%| 40| 0.011| 0.18| 130| 0.036| 0.57| 240| 0.067| 1.06| 220| 0.06| 0.97| 380| 0.106| 1.67
25%| so| 0.014| 0.22| 163| 0.045| 0.72| 300| 0.083| 1.32| 275| 0.08| 1.21| 475| 0.132| 2.09
30%| 60| 0.017| 0.26| 195| 0.054| 0.86| 360| 0.100| 1.59| 330| 0.09| 1.45| 570| 0.158| 2.51
35%| 70| 0.019| 0.31| 228| 0.063| 1.00| 420| 0.117| 1.85| 385| 0.11| 1.70| 665| 0.185| 2.93
40%| 80| 0.022| 0.35| 260| 0.072| 1.14| 480| 0.133| 2.11| 440| 0.12| 1.94| 760| 0.211| 3.35
45%| 90| 0.025| 0.40| 293| 0.081| 1.29| 540| 0.150| 2.38| 495| 0.14| 2.18| 855| 0.238| 3.76
SO%| 1 00| 0.028| 0.44| 325| 0.090| 1.43| 600| 0.167| 2.64| 550| 0.15| 2.42| 950| 0.264| 4.18
55%| 110| 0.031| 0.48| 358| 0.099| 1.57| 660| 0.183| 2.91| 605| 0.17| 2.66| 1045| 0.290| 4.60
60%| 120| 0.033| 0.53| 390| 0.108| 1.72| 720| 0.200| 3.17| 660| 0.18| 2.91| 1140| 0.317| 5.02
65%| 130| 0.036| 0.57| 423| 0.117| 1.86| 780| 0.217| 3.43| 715| 0.20| 3.15| 1235| 0.343| 5.44
70%| 140| 0.039| 0.62| 455| 0.126| 2.00| 840| 0.233| 3.70| 770| 0.21| 3.39| 1330| 0.370| S.86
75%| 150| 0.042| 0.66| 488| 0.135| 2.15| 900| 0.250| 3.96| 825| 0.23| 3.63| 1425| 0.396| 6.27
80%| 160| 0.044| 0.70| 520| 0.144| 2.29| 960| 0.267| 4.23| 880| 0.24| 3.87| 1520| 0.422| 6.69
85%| 170| 0.047| 0.75| 553| 0.154| 2.43| 1020| 0.283| 4.49| 935| 0.26| 4.12| 1615| 0.449| 7.11
90 %| 180| 0.050| 0.79| 585| 0.163| 2.58| 1080| 0.300| 4.76| 990| 0.28| 4.36| 1710| 0.475| 7.53
95%| 190| 0.053| 0.84| 618| 0.172| 2.72| 1140| 0.317| 5.02| 1045| 0.29| 4.60| 1805| 0.502| 7.95
100%| 200| 0.056| 0.88| 650| 0.181| 2.86| 1200| 0.333| 5.28| 1100| 0.31| 4.84| 1900| 0.528| 8.37

Measurements

Dimensions

| DN15LF| DN15| DN15HF| DN20| DN20HF
---|---|---|---|---|---
A| 134.5| 144
B| 134.5| 144
C| 80| 80
D| 77| 77
E| 98.5| 102
F| 211| 213
G| Internal G½”| Internal G¾”
H| Internal Rp½”| Internal Rp¾”

| DN15LF| DN15| DN15HF| DN20| DN20HF
---|---|---|---|---|---
A| 134.5| 144
B| 125| 138
C| 80| 80
D| 77| 77
E| 98.5| 102
F| 211| 213
G| Internal G½”| Internal G¾”
H| Internal Rp½”| In t ern al Rp¾”

| A| B| C
---|---|---|---
DN15| Int ernal Rp½”| 307.5| External G½”
DN20| Internal Rp¾”| 319.5| External G¾”

| A| B| C
---|---|---|---
DN15| 95| 215| 160
DN20| 120| 220| 167

CUSTOMER SUPPORT

Danfoss A/S
Climate Solut ions• danfoss.com • +45 7488 2222
Any information, including, but not limited to information on selection of product, its application or use, product design, weight, dimensions, capacity or any other technical data in product manuals, catalogues descriptions, advertisements, etc. and whether made available in writing, orally, electronically, on line or via download, shall be considered informative, and is only binding if and to the extent, explicit reference is made in a quotation or order confirmation. Danfoss cannot accept any responsibility for possible errors in catalogues, brochures, videos and other material.
Danfoss reserves the right to alter its products without notice. This also applies to products ordered but not delivered provided that such alterations can be made without changes to form, fit or function of the product.
All trademarks in this material are property of Danfoss A/Sor Danfoss group companies. Danfoss and the Danfoss logo are trademarks of Danfoss A/S. All rights reserved.
8 j © Danfoss I DCS-SGDPT/Sl j 2023.04
7369371OIAQ389559828576en-010301

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>