GrohFlex
Advanced Universal Rough-In Valve System
Agenda
• Leap Forward…GrohFlex Overview
• Steps for Specification
1. Universal Rough-In
2. GrohFlex Functions & Trim Kits
3. Select a Trim Style
• GrohFlex Comparisons
1. GrohFlex/GrohSafe/GrohTherm
2. GrohFlex vs iBox
2
Leap Forward…GrohFlex Overview
Universal
Rough-In
Bathroom
Trim Kit
+
3
Leap Forward…GrohFlex Overview
Define your style.
Choose from GrohFlex Authentic, Timeless, or Cosmopolitan design styles to
coordinate with the wide range of GROHE faucets and shower products.
Start projects now.
With GrohFlex, final design decisions can be made later in the construction
process after you’ve chosen fixtures, tile and colors.
Save Time and Money.
Multiple shower installation options are made possible with one universal, in-wall
rough-in solution
Times Change, Styles Change.
GrohFlex allows users to switch styles without the expense of new piping or tile.
4
Leap Forward…GrohFlex Overview
Easy to Upgrade.
As the home changes with the addition of children or older family members,
GrohFlex allows you to easily, upgrade your shower from pressure balancing
technology to thermostatic safety valve technology without breaking into expensive
tile or stone.
Quick and Simple Maintenance
Avoid expensive shower wall repairs.
GROHE TurboStat Technology
(Thermostatic control modules only)
5
Leap Forward…GrohFlex Overview
• Designed Specifically for the North American Market
• ½ inch installation for all functions, including 14 gpm (at 45 psi) high-flow
thermostatic custom shower control module
• All Controls operated from a single axis , reducing the need for separate volume
controls
• Integrated service stops, check valves and a flushing system make installation
fast and easy
• Integrated backchannel allows for use in tub/shower installation with diverter
spouts (no twin ell needed)
• Thin wall mounting capability, designed for acrylic and fiberwall installations
6
Step 1: Leap Forward
GrohFlex Universal Rough-In
7
GrohFlex Universal Rough-in
Fixing point
to back wall
Leveling points
½” cold
water inlet
½” hot
water inlet
Fixing point
to front wall
Removable protection
cover printed with
installation information
8
GrohFlex Universal Rough-in
½” outlet
Installation depth
template
Service stop
Flushing plug
Leak-proof housing
½” outlet
9
Step 2: Adapt and Thrive
GrohFlex Function & Bathroom Trim Kits
10
Adapt and Thrive: GrohFlex Functions
Single Function
Pressure Balance
Shower or Tub/Shower
with Diverter Spout
11
Adapt and Thrive: GrohFlex Functions
Single Function Pressure Balance
Shower or Tub/Shower with Diverter Spout
270° Lever Rotation
PBV Handle to open at cold
water, moving through warm
water to hot water
12
Adapt and Thrive: GrohFlex Functions
Single Function
Thermostat
Shower or Tub/Shower
with Diverter Spout
13
Adapt and Thrive: GrohFlex Functions
Single Function Thermostatic
Shower or Tub/Shower with Diverter Spout
Double Scale Marking: °F/°C
100°F/38°C Safety Stop Button
Temperature Control
Volume Lever
14
Adapt and Thrive: GrohFlex Functions
Dual Function
Pressure Balance
2 Shower Outlets or
Tub/Shower without
Diverter Spout
15
Adapt and Thrive: GrohFlex Functions
Dual Function Pressure Balance
2 Shower Outlets or Tub/Shower without Diverter Spout
270° Lever Rotation
Aquadimmer volume/diverter lever
Turn left to operate outlet #1
Turn right to operate outlet #2
Temperature Control
16
Adapt and Thrive: GrohFlex Functions
Dual Function
Thermostatic
2 Shower Outlets or
Tub/Shower without
Diverter Spout
17
Adapt and Thrive: GrohFlex Functions
Dual Function Thermostatic
2 Shower Outlets or Tub/Shower without Diverter Spout
Double Scale Marking: °F/°C
100°F/38°C Safety Stop Button
Temperature Control
Aquadimmer volume/diverter lever
Turn left to operate outlet #1
Turn right to operate outlet #2
18
Adapt and Thrive: GrohFlex Functions
Custom Shower Thermostatic
High Flow ½” Mixing Valve (14 gpm at 45 psi).
Separate volume controls required.
19
Adapt and Thrive: GrohFlex Functions
Custom Shower Thermostatic
High Flow ½” Mixing Valve (14 gpm at 45 psi). Separate volume
controls required.
Double Scale Marking:
°F/°C
100°F/38°C Safety Stop Button
Temperature Control
20
Step 3: Adapt to any
Environment
GrohFlex Trim Styles and
Coordinating Products
21
3 Trim Styles Available
Timeless
Authentic
Cosmopolitan
Available in Starlight
Chrome, Brushed Nickel
Available in Starlight
Chrome, Brushed Nickel,
Polished Nickel, and OilRubbed Bronze
Available in Starlight
Chrome, Brushed Nickel
22
3 GrohFlex Trim Options
Timeless
23
Timeless
Essence
Concetto
Tenso
Arden
Atrio
24
3 GrohFlex Trim Options
Authentic
25
Authentic
Kensington
Bridgeford
Seabury
Geneva
Somerset
26
3 GrohFlex Trim Options
Cosmopolitan
27
Cosmopolitan
Eurodisc
Cosmopolitan
Ondus Veris
Eurosmart
Bau Loop
Europlus
Eurosmart
Cosmopolitan
GROHE Allure
28
Additional Tips Frequently Asked Questions
•
Refer to the product TPI for additional information and calibration steps.
•
Are Extension kits available?
• Yes, Refer to TPI for extension set Part Number. Extension kits will increase the fitting
depth by 25mm or 1”.
•
Are reversed thermostatic cartridges available?
• Yes, part no. 47 175 (1/2”)
•
Do the Dual Function Pressure Balance and Thermostatic Valves have Volume Controls?
• Yes, the volume controls will control the flow rate from low to high. Turn from the off
position at 6:00 to the left or right to operate the preferred outlet.
29
Step 4: GrohFlex Comparisons
GrohFlex/GrohSafe/GrohTherm
30
GrohFlex/GrohSafe
Single Function Pressure Balance Price Comparison
Transitional Design –
Save $81
with
GrohFlex!
GrohSafe
GrohFlex
Essence Trim + GrohSafe = $365
Timeless Trim + GrohFlex = $284
Traditional Design –
Save $5
with
GrohFlex!
Seabury Trim + GrohSafe = $299
Authentic Trim + GrohFlex = $294
Contemporary Design –
Save $18
with
GrohFlex!
Europlus Trim + GrohSafe = $312
Cosmo Trim + GrohFlex = $294
31
GrohFlex/GrohSafe
Dual Function Pressure Balance Price Comparison
Transitional Design –
Save $88
with
GrohFlex!
GrohSafe
GrohFlex
Essence Trim + GrohSafe = $452
Timeless Trim + GrohFlex = $364
Traditional Design –
Save $363
with
GrohFlex!
Seabury PB + Diverter Trim
Diverter rough + GrohSafe = $737
Authentic Trim + GrohFlex = $374
Contemporary Design –
Save $18
with
GrohFlex!
Europlus Trim + GrohSafe = $312
Cosmo Trim + GrohFlex = $294
32
GrohFlex/GrohTherm
Single Function Thermostat Price Comparison
Transitional Design –
Save $310
with
GrohFlex!
GrohTherm
GrohFlex
Atrio + V/C Trim
V/C rough + GrohTherm = $834
Timeless Trim + GrohFlex = $524
Traditional Design –
Save $238
with
GrohFlex!
Geneva THM + V/C Trim
V/C rough + GrohTherm = $772
Authentic Trim + GrohFlex = $534
Contemporary Design –
Save $496
with
GrohFlex!
Allure THM + V/C Trim
V/C rough + GrohTherm = $1030
Cosmo Trim + GrohFlex = $534
33
GrohFlex/GrohTherm
Dual Function Thermostat Price Comparison
Transitional Design –
Save $545
with
GrohFlex!
GrohTherm
GrohFlex
Atrio THM + V/C Trim (2) + V/C
rough (2) + GrohTherm = $1109
Timeless Trim + GrohFlex = $564
Traditional Design –
Save $427
with
GrohFlex!
Geneva THM + V/C Trim (2) + V/C
Rough (2) + GrohTherm = $1001
Authentic Trim + GrohFlex = $574
Contemporary Design –
Save $786
with
GrohFlex!
Allure THM + V/C Trim (2) + V/C
rough (2) + GrohTherm = $1360
Cosmo Trim + GrohFlex = $574
34
GrohFlex/GrohSafe
Custom Shower Thermostat Price Comparison
Transitional Design –
Save $95
with
GrohFlex!
GrohTherm
GrohFlex
Atrio Trim + GrohTherm = $559
Timeless Trim + GrohFlex = $464
Traditional Design –
Save $69
with
GrohFlex!
Geneva Trim + GrohSafe = $543
Authentic Trim + GrohFlex = $474
Contemporary Design –
Save $276
with
GrohFlex!
Allure Trim + GrohSafe = $750
Cosmo Trim + GrohFlex = $474
35
Step 5: GrohFlex
Comparisons
GrohFlex vs iBox
36
GrohFlex vs iBox: Full Functional Range
Single Function Pressure Balance (Single Axis)
“C” Trim + iBox = $290
GrohFlex
iBox
Cosmo Trim + GrohFlex = $294
37
GrohFlex vs iBox: Full Functional Range
Dual Function Pressure Balance (Single Axis)
With Volume Control
N/A
GrohFlex
iBox
Authentic Trim + GrohFlex = $374
*Using Grohe
03671 twin-ell
and Grohe ¾”
diverter spout.
*
*
*
38
GrohFlex vs iBox: Full Functional Range
Single Function Thermostat (Single Axis)
With Volume Control
“C” Trim + iBox = $560
GrohFlex
iBox
Authentic Trim + GrohFlex = $534
39
GrohFlex vs iBox: Full Functional Range
Dual Function Thermostat (Single Axis)
With Volume Control
“C” Trim + iBox = $580
GrohFlex
iBox
Timeless Trim + GrohFlex = $564
*Uses Grohe
03671 twin-ell
and Grohe ¾”
diverter spout.
*
*
*
40
GrohFlex vs iBox: Full Functional Range
High Volume Thermostat
Requires Separate Volume Controls
Stark Trim + iBox = $918
GrohFlex
iBox
Cosmo Trim + GrohFlex = $474 (3 Trim Styles)
Save $444 with GrohFlex
14 GPM
16/18 GPM
41
Available GrohFlex Training Materials

GrohFlex Circle of Excellence “Learn and Earn” Course, GrohFlex Overview: Available Now
 10-question quiz on Circle of Excellence worth 3,000 pts based on information
reviewed in GrohFlex Trade Brochure

GrohFlex Circle of Excellence “Learn and Earn” Course, Selling GrohFlex: Available Now
 5 question quiz on Circle of Excellence worth 3,000 pts based on information reviewed
in GrohFlex Consumer Brochure
 Live Customer Webinars: Dates
in January
 With points tied to Circle of
Excellence Quiz
42
43
GrohFlex Tech Info
Pipe diagrams & additional technical
information
44
GrohFlex Functions: Single Function PBV/THERM
Without bypass use
45
GrohFlex Functions: Single Function PBV/THERM
With use of integrated bypass
46
GrohFlex Functions: Dual Function PBV/THERM
Integrated 2 way diverter
47
GrohFlex Functions: Custom Shower Thermostat
Separate Volume Controls Required
48
Application and Specification
• Concealed System can be used in conjunction with:
• Pressurize storage heaters
• Thermally controlled instantaneous heaters
• Hydraulically controlled instantaneous heaters
• Operation with unpressurized storage heaters (displacement water
heaters) is NOT possible
• Flow Pressure:
• Min: 20 PSI
• Recommended: 20-72.5 psi
• Max. Operating Pressure 125 psi
• Temperature Max: 180°F
• Water Connection:
• Cold: RH
• Hot: LH
49
Can the GrohFlex Valve be installed in a 2x4 wall?
50
51
Flush the lines for debris
Note: Opening
up both service
stops allows for
cross flow of
the inlet lines
52
Trim the rough in box when ready for final assembly
53
Caulk to seal the rough in box
Prevents in-wall leakage
54
Remove Flush Plug Insert
55
Install Control Module and Secure with Screws
56
Close Valve Function by following directions on TPI,
then open the service stops
Single Function Pressure Balance
57
Close Valve Function by following directions on TPI,
then open the service stops
Single Function Thermostatic
Dual Function Pressure Balance
Dual Function Thermostatic
58
Open Service Stops and Observe the proper
mounting position
59
Attach and Secure Trim Plate
60
Install Single Axis Trim Rings and Levers
61
Install Single Axis Trim Rings and Levers
62
63
Getting to know the control module
Check Valves are found in each control module
64
Getting to know the control module
Locate the set screw to
disassemble the control
module housing
65
Getting to know the control module
There is a specific order the parts are assembled to fit properly. This
makes reassembly simple.
66
Getting to know the control module
Notches in the brass and fittings ensure cartridges line up properly. This
makes reassembly simple.
67
Removing the Pressure Balance Cartridge
Before removing control module: check that Supply Lines are closed!
69
Turn the Pressure Balance Valve Outlet to the “off”
position.
70
Removing Pressure Balance Cartridge
Locate the set screw to
disassemble the control
module housing
71
Removing Pressure Balance Cartridge
Top Cap is and outer
sleeve are removed
72
Removing Pressure Balance Cartridge
Remove the cartridge
retaining nut
73
Removing Pressure Balance Cartridge
Remove the cartridge cap
74
Removing Pressure Balance Cartridge
You now have access to the
pressure balance cartridge
75
Removing the Thermostatic Cartridge
Before removing control module: check that Supply Lines are closed!
77
Removing Thermostatic Cartridge
Locate the set screw to
disassemble the control
module housing
78
Removing Thermostatic Cartridge
Outer Control Module
Sleeves are removed
79
Removing Thermostatic Cartridge
Remove cartridge retainer nut
80
Removing Thermostatic Cartridge
Thermostatic Cartridge
can be pulled out.
Note the notch to assist in
proper cartridge alignment
81