Product Overview

Data sheet
VDKIE122 © Danfoss 05/08
ESBE Series 30 MR
Thermostatic Mixing Valves
Domestic Hot
Water Sizing:
Typical Piping:
Flow Capacity:
2
The flow rate through the Series 30 MR valve at any given pressure drop can be determined
from the capacity diagram.
For domestic hot water systems the Series 30
MR can be sized based on the number of fixture
units the valve will supply.
Process in selecting the appropriate valve:
Determine the type and number of fixtures1.
to be supplied by the mixing valve.
Assign fixture units from Table 1 for each2.
fixture type.
Add the total number of fixture units.3.
Confirm the mixing valve has sufficient 4.
capacity.
Example:
A residential home with 2-1/2
baths (3 bathroom sinks & 2 baths), kitchen (1
kitchen sink and a dish washer), and a clothes
washer. Hot water supply from the water heater
is 3/4”.
The total fixture units is (3x1) + (2x2) + (1x2) +
Series 30 MR thermostatic mixing valves can
be used to safely supply domestic hot water in
residential, commercial, institutional, and
industrial installations.
The series 30 MR are also well suited for use in
hydronic heating systems requiring a reduced
hot water temperature such as in radiant
heating systems, heat pumps, and solar heating
systems.
(1x1) + (1x2) = 12 fixture units.
A 3/4” Series 30 MR has sufficient capacity.
Table 1. Fixture Units
Bathroom sink 1
Kitchen Sink 2
Bath 2
Shower 2
Clothes Washer 2
Dish Washer 1
Series 30 MR Capacity
Size Fixture Units
1/2” 15
3/4” 16
Series 30 MR
1 3 5 7
2 4 6 8
Central Mixing Central Mixing
Central Mixing Central Mixing
Radiant Floor Heating Primary-Secondary Pumping
Recirculated
Domestic Water
Boiler Return Water Temperature Control
Note: certain fixtures such
as hot tubs, roman tubs or
spa showers may require a
high volume of hot water.
The Series 30 MR may not
be capable of providing
sufficient hot water to these
fixtures.
All 1/2” & 3/4” Compression
3/4” FPT & Union Body (MPT)
0
2
4
6
8
10
12
14
16
0510 15 20 25 30 35 40 45 50 55 60
Pressure Drop (psi)
Flow (USgpm)