TECHNICAL RANGE
Flushmaster Flush Valves,
Demand & Metering Taps
Flushmaster Flush Valves
WATER-SAVING TOILET FLUSH MECHANISMS
Cobra Flush Valves
The flush valves allow for adjustable water delivery and non-hold open function. These can be preset
to deliver only enough water to clean the urinal or toilet and no more. They also cannot be left in the
open position, and therefore have to be re-activated for another flush.
Cobra Dual Flush Toilets
The dual flush toilets are fitted with a dual flush activation that will dispense either a 3 litre or 6 litre
flush.
Standard Flushmaster Flush Valves
TOILET FLUSH VALVE
Description: Exposed type with wall plate, inlet control stop.
Code:
FM1.000
FM1.000, STANDARD MANUAL FLUSHMASTER FLUSH VALVE
BASIC INSTALLATION GUIDE
Please take note that the following fixtures/ installations should be completed before installing the
flushmaster flush valve:
Water closet (toilet) or Urinal
Drain line
Waste pipes
Water supply line
The water supply line should be ideally installed in a brick wall (110mm or 230mm) and the piping
should be “chased” into the wall. The water supply line should then be plastered/ tiled closed.
This will prevent unnecessary movement of the flushmaster flush valve when operated.
FM1.000, STANDARD MANUAL FLUSHMASTER FLUSH VALVE
BASIC INSTALLATION GUIDE
IMPORTANT NOTE:
All plumbing is to be installed according to the applicable regulations, rules, codes and procedures.
Water supply lines and piping must be sized to provide the adequate volume of water for every
flush cycle (60l/ min).
Take note of the minimum required operating pressure (30 - 300kPa) of the device (a pressure
pump may be installed to increase the water supply pressure to the minimum required/ desired
levels).
Take care not to exceed the maximum operating pressure (600kPa) for the specific device (a PRV
- pressure reducing valve) can or should be installed on the main water supply line to balance
the water pressure.
Flush all water line prior to installation to clear it of any potential debris.
Do not use any “toothed tools” to install or service the flushmaster flush valve - this will result in
INSTALLATION PROCEDURE (only for the Flushmaster flush valve):
1) Install the control stop assembly (BC-FM8.60)
- A - and wall flange. PFT-tape or “hemp”
should be used on the male threads to create a
leak-free coupling.
2) Prior to inserting the flushmaster flush valve
“tailpiece” - B - (the end which inserts into
the control stop assembly), take note that the
“o-ring” seal - C - is located in the “o-ring seal
groove” (see the end of the “tailpiece”) and that
the “lock nut” - D - and “double cap seal” - Eare located and positioned as shown.
3) Insert the flushmaster flush valve “tailpiece” into
the control stop assembly and hand-tighten the
lock nut to the stop control assembly. Plumb
the entire unit now.
ADDITIONAL REQUIREMENTS:
a. Flushpipe (FMT1.1) to connect the flushmaster flush valve to the toilet - back entry.
b. Rubber pan connector (C-FMV8.3) to enable a leak free/ odour free connection between the
flushpipe and the water closet (toilet).
c. Flushpipe (FMT1.2) to connect the flushmaster flush valve to the water closet (toilet) - top entry.
FM1.000, STANDARD MANUAL FLUSHMASTER FLUSH VALVE
BASIC INSTALLATION GUIDE
SPARES AVAILABLE:
1.
2.
3.
4.
5.
Piston assembly (C-FM8.30)
Plunger assembly (C-FM8.60)
Control stop assembly (C-FMC1.3)
Top cover assembly (C-FMC1.2)
Headpart (C-FM8.32)
6.
7.
8.
9.
Washer kit (C-FM8.50)
Flushpipe coupling nut (C-FM8.14)
Handle seal (C-FM8.70)
Handle & Nut assembly (C-FMC1.5)
INSTALLATION PROCEDURE, CONTINUED (for the installation of the Flushpipe):
FMT1.1 - 38.2mm (BENT); 335mm (VERTICAL LENGTH); 140mm (HORIZONTAL LENGTH)
FMT1.2 - 38.2mm (STRAIGHT); 203mm (VERTICAL LENGTH)
FMT1.3 - 38.2mm (BENT); 508mm (VERTICAL LENGTH); 280mm (HORIZONTAL LENGTH)
FMT3.4CP - 38.2mm (STRAIGHT); 445mm (VERTICAL LENGTH)
4) Determine the length of the flushpipe/ vacuum breaker
tube - F. This pipe is required to connect the flushmaster flush valve and the water closet (toilet) and as
indicated above, it comes in various lengths (vertical
and bent).
5) Hand-tighten the coupling nut at the insertion of the
flushpipe to the flushmaster flush valve and insert the
rubber pan connector into the opening of the water
closet (toilet). Ensure that the rubber pan connector
fits tightly and insert it fully to establish a proper seal.
6) Before the water supply is
turned on, ensure all stop
valves to the flushmaster
flush valve are closed off
properly. The stop valves
can be opened/ closed/
adjusted using the
adjustment screw (at the
centre of the control stop
assembly) - G.
If for any reason the control stop valve needs to be removed completely,
ensure that the water supply is turned off completely.
FM1.000, STANDARD MANUAL FLUSHMASTER FLUSH VALVE
BASIC INSTALLATION GUIDE
For new installations and servicing of the cartridge:
a. Close off the water supply.
b. Lift out the piston valve/ cartridge.
c. Re-fit the flushmaster flush valve top cover - open the water supply gradually to flush out
potential debris and impurities in the water supply.
After completion:
a. Close the control stop valve
(or alternative stop valves).
b. Remove the flushmaster flush
valve top cover again.
c. Re-fit the piston/ cartridge and
secure properly.
d. Open the control stop valve
(or alternative stop valves).
INSTALLATION/ FUNCTIONING PROBLEMS:
PROBLEM
CAUSE
SOLUTION
Valve does not operate
Water supply
Check water supply
Valve does not shut off
Dirt in piston bypass
Dirt/ debris at valve seat
Dirt/ debris at sealing area
Clean bypass groove (*)
Clean valve seat
Clean piston
*
BYPASS
GROOVE
Insufficient water
Incorrect flushmaster for application
Control stop valve incorrectly
installed
Piston damaged
Piston stroke too short
Check requirements
Adjust control stop valve
Replace piston
Turn piston adjustment
screw anti-clockwise
Too much water
Noisy flush
Incorrect flushmaster for application
Control stop valve improperly adjusted
Check requirements
Adjust screw at control
stop valve clockwise
Turn piston adjustment
screw clockwise
Piston stroke too long
Lever assembly leaks
Lever nut is loose
Fibre washer damaged
U-packing dirty
Tighten nut
Replace washer
Disassemble lever &
clean u-packing
TOILET FLUSH VALVE
Description: Exposed type. Back entry + flush pipe pan connector.
Code:
FM1.100
TOILET FLUSH VALVE
Description: Exposed type. Top entry + flush pipe pan connector,
integral vacuum breaker.
FM1.210
Code:
TOILET FLUSH VALVE
Description: Exposed type with integral vacuum breaker and
wall flange.
FM2.000
Code:
TOILET FLUSH VALVE
Description: Exposed type. Back entry with integral vacuum
breaker. Pan connector and wall flange.
FM2.100
Code:
TOILET FLUSH VALVE
Description: Exposed type. Top entry with integral vacuum breaker. Pan
connector and wall flange.
FM2.210
Code:
TOILET FLUSH VALVE
Description: Concealed type. Back entry + palm press. Pan
connector and control stop.
FM3.402
Code:
TOILET FLUSH VALVE
Description: Exposed type with integral vacuum breaker. Econoflush, 1
¼” butterfly control inlet.
KF1.000
Code:
TOILET FLUSH VALVES
Description: Exposed type. Back entry with integral vacuum
breaker. Pan connector. Econoflush.
KF1.104
Code:
TOILET FLUSH VALVES
Description: Concealed type. Back entry + palm press. Pan
connector. Econoflush.
KF3.402
Code:
TOILET FLUSH VALVE
Description: Concealed type. Back entry with palm press. Pan
connector. Econoflush.
KF3.402PR
Code:
TOILET FLUSH VALVE
Description: Standard Econoflush front access box. Back entry
with flushpipes, galvanised steel under tile box and steel
face plate.
KF3.412
Code:
TOILET FLUSH VALVE
Description: Junior Econoflush front access box. Back entry
with flush pipes.
KF4.213
Code:
TOILET FLUSH VALVE
Description: Concealed type. Palm press pushbutton assembly.
Econoflush.
FJ8.102
Code:
Junior Flushmaster Flush Valves
Flushmaster Junior Slimline
Toilet Flush Valve
70
Flowrate ltrs/ min
60
50
40
30
20
10
0
1
2
3
4
5
6
7
Flush time/ sec
TOILET FLUSH VALVE
Description: Exposed type with ball-o-stop and wall flange.
Chrome plated finish.
FJ2.000
Code:
TOILET FLUSH VALVE
Description: Exposed type with ball-o-stop and wall flange. Econoflush.
Brushed chrome finish.
FJ2.001
Code:
TOILET FLUSH VALVE
Description: Exposed type. Back entry with flush pipe, Pan connector,
wall flange and seat buffer.
FJ2.100
Code:
TOILET FLUSH VALVE
Description: Exposed type. Top entry with flush pipe, pan connector, wall
flange and seat buffer.
FJ2.210
Code:
TOILET FLUSH VALVE
Description: Exposed type. Back entry with flush pipe, pan connector
and seat buffer.
FJ2.601
Code:
TOILET FLUSH VALVE
Description: Concealed type with ball-o-stop inlet. Econoflush with
captive linkage.
FJ4.001
Code:
TOILET FLUSH VALVE
Description: Concealed type. Back entry with flush pipes, pan connectors
and palm press. Econoflush with captive linkage.
FJ4.203
Code:
TOILET FLUSH VALVE
Description: Concealed type. Back entry with vandal resistant
guide tube pushbutton assembly and captive linkage.
FJ4.203PR
Code:
JUNIOR FLUSHMASTER FLUSH VALVES
Flushmaster Junior Slimline - Urinal Flush Valve
Flushmaster junior urinal flush valve graph illustrating flushing. Inlet flow pressure of 100kPa with ball -O - stop valve fully open.
28
Flowrate ltrs/ min
24
20
16
12
8
4
0
0
1
2
3
4
5
6
7
8
9
10
Flush time/sec
URINAL FLUSH VALVES
Description: Exposed type with ball-o-stop and wall flange.
Chrome plate finish. Additional toilet piston screw.
FJ6.000
Code:
URINALS FLUSH VALVES
Description: Exposed type with ball-o-stop. Econoflush. Brushed
chrome finish. Additional toilet piston screw.
FJ6.001
Code:
URINAL FLUSH VALVE
Description: Concealed type with Palm press pushbutton
assembly. Econoflush .
FJ8.102
Code:
URINAL FLUSH VALVE
Description: Front access box with palm press, tailpipe, face plate and
ball-o-stop. Brushed chrome finish.
KF8.112
Code:
URINAL FLUSH VALVE
Description: Exposed type + ball-o-stop and wall flange, chrome plated.
Code:
FJS2.000
URINAL FLUSH VALVE
Description: Exposed type with ball-o-stop and wall flange. Chrome
plated.
FJS6.000
Code:
TOILET FLUSH VALVE
Description: Exposed type. Back entry with flush pipe, pan connector,
wall flange and seat buffer.
FJS2.100
Code:
URINAL FLUSH VALVE
Description: Exposed type, touch - free, electronic control valve. Chrome
plated.
EL-3004
Code:
URINAL FLUSH VALVE
Description: Concealed type, touch - free, electronic control valve.
Code:
EL-3005
URINAL FLUSH VALVE
Description: Concealed type, touch - free, electronic control with
manual override button.
EL-3006
Code:
URINAL FLUSH VALVES
Description: Square finish, modern, concealed touch - free, electronic
dual flush control with manual override button.
EL-4.213
Code:
URINALS FLUSH VALVES
Description: Square finish, modern, concealed touch - free, electronic
control valve.
EL-8.112
Code:
JUNIOR FLUSHMASTER FLUSH VALVES - BASIC INSTALLATION GUIDE
1. Flushmaster Junior Toilet Flush Valves are suitable for operation with flow pressures ranging
from 150-500kPa (back-entry WC) and 200-500kPa (top-entry WC).
2. Flushmaster Junior Urinal Flush Valves are suitable for operation with flow pressures ranging
from 30-300kPa (inlet).
3. The water supply system should be designed so as to yield a minimum flow-rate at each valve.
The minimum flow-rate requirement for a Flushmaster toilet flush valve: 105l/ min. The minimum
flow-rate required for a Flushmaster urinal flush valve: varies (depending on the type of urinal
used).
4. Valves must be accessible for maintenance/ servicing and a suggested minimum clearance of
60mm is required above the unit for this purpose.
5. The outlet of the flush valve must face vertically downwards.
6. Please consult the table below:
MIN STATIC PRESSURE
@ WATERMETER
kPa
300
MAX LENGTH OF PIPE (M)
BETWEEN FLUSH VALVE
AND WATERMAIN
22mm Pipe
3
350
9
400
12
450
14
500
18
550
22
600
29
650
34
700
41
15mm Ø Pipe or 15mm Ø Watermeter must not be used for toilet flush valves.
Friction loss across a 22mm Ø Watermeter has been taken into account (see table above).
Maximum distance as indicated may be increased by 25%, if PVC/ HDPE pipe is used.
The table is illustrative of single storey domestic applications only and for any other installations,
you should consult your Plumber or suitably qualified person to do so.
VALVE SETTINGS:
1. The flow-rate, cycle time and flow pressure
in flush valves can be adjusted at the
ball-o-stop screwdriver slot (indicated by
arrow on the line drawing on the left).
2. The ball-o-stop setting should be such that
there is no splashing whilst ensuring an
adequate flush to clear the pan/ urinal.
3. Flush time can be adjusted by loosening
the grub screw under the pushbutton and
rotating the knulled button surround 180˚
(indicated by black dot on the line drawing
on the left).
JUNIOR FLUSHMASTER FLUSH VALVES - BASIC INSTALLATION GUIDE
MAINTENANCE OF THE FLUSH VALVE
When to clean the Flush Valve:
Flush valve not closing due to foreign matter between the seat pipe and the diaphragm or under
the relief valve; The by-pass assembly is blocked.
Removal of the Valve Components:
Close the ball-o-stop or stop cock; Unscrew the cover; Remove the piston; To dismantle the
piston, unscrew the relief valve top screw and remove the relief valve and relief valve washer.
Cleaning Procedure:
Gently clean the top of the seat pipe, the underside of the diaphragm, the relief valve washer and
the relief valve seat within the piston plate; The by-pass assembly and if blocked can be cleaned
with a needle.
Checking Valve Performance:
When operating the Flushmaster Junior Toilet Flush Valve, the valve yields ±6.5l/ flush cycle and
the Flushmaster Junior Urinal Flush valve yields ±1.8l/ flush cycle; The period of flow for urinal
flush valves should ideally range 5-16 sec and for the toilet flush valve 1-6 sec; The flush valve
has
FAULT FINDER
PROBLEM
CAUSE
ACTION TO BE TAKEN
Poor flow
Excessive flush time
Valve not shutting off
Dirt in by-pass, valve seat
or relief valve seat
Follow cleaning instructions
Poor/ excessive flow of water
Flush time too long/ short
Incorrect ball-o-stop setting
Adjust ball-o-stop
Excessive flush time and/ or
poor flow
Valve not closing off
Non hold-open feature not
working
Inadequate supply pressure
Consult table 1 or your
Plumber or any suitable
qualified person able to
calculate system
pressures and water
supply
Flush time too short/ long
Faulty by-pass
By-pass blocked
Clean/ replace by-pass
Water hammer
Air in the system
Fit air release valve
Valve leaking into pan
Diaphragm/ relief valve
washer damage
Insert new piston assembly
Valve leaking at air
inlet point
Back pressure from pan
due to blockage
Clean pan inlet ports
Cobra Water - Saving
Demand and Metering Taps
Cobra Demand Taps
The demand taps allow water to flow only as long as the button is held down. They cannot be left
running. This feature makes demand taps the ideal choice for public facilities. Only one hand can be
washed at a time.
Cobra Metering Taps
The metering taps allow an adjustable water delivery time from 1 second minimum. They can be
preset to deliver the minimum amount of water required. Water is dispensed only after the push
button has been released. The unit can not be jammed open, both hands can be washed at the same
time.
DEMAND TAP
Demand Tap
KM2.202-20
7
6
Flow/ L/ min
5
4
3
2
1
0
10
50
100
150
200
250
Flow Pressure/ kPa
300
350
400
KM2.202-20
BIB TAP
Description: Pushbutton with hot and cold indices included.
Chrome plated. ¾” BSP male inlet..
KM2.202-20
Code:
BIB TAP
Description: Pushbutton with hot and cold indices included.
Chrome plated. ½" BSP male inlet.
KM2.202-15
Code:
PILLAR TAP
Description: Pushbutton with raised nose includes hot and cold indices.
½" BSP male inlet.
KM2.102
Code:
BIB TAP
Description: Pushbutton includes hot and cold indices.
Rough brass. ½" BSP male inlet.
KM2.203-15
Code:
BIB TAP
Description: Pushbutton includes hot and cold indices.
Rough brass. ¾” BSP male inlet.
KM2.203-20
Code:
STOP TAP
Description: Exposed pushbutton stop tap. Chrome plated finish.
½” BSP female inlets.
KM2.302
Code:
METERING TAPS SPECIFICATION
Cobrawatertech (Pty) Ltd
Flow test on KM2.100 with grub screw
2500
ML'S
2000
1500
1000
500
0
5
15
10
20
SECONDS
50 KPA
150 KPA
300 KPA
PILLAR TAP
Description: Self closing, non - hold open. Flow controller.
Flow cycle 1-20 seconds. Chrome plated finish. ½”BSP
male inlet.
Code:
KM2.100
PILLAR TAP
Description: Self closing, non - hold open. Flow controller. Flow cycle 120 seconds. Brushed chrome finish.
½” BSP male inlet.
KM2.101
Code:
FLOW CONTROL VALVE
Description: Exposed with integral ball-o-stop. Non - hold open.
¾” BSP female inlet.
KM1.000
Code:
BIB TAP
Description: Self closing, non - hold open. Flow controller.
Flow cycle 1-20 seconds. Chrome plated finish. ½”BSP
male inlet.
Code:
KM2.200
BIB TAP
Description: Self closing, non - hold open. Flow controller.
Flow cycle 1-20 seconds. Brushed chrome finish. ½”BSP
male inlet.
Code:
KM2.201
STOP TAP
Description: Self closing, non - hold open. Flow controller.
Flow cycle 1-20 seconds. ½” BSP male inlet.
KM2.301
Code:
URINAL VALVE
Description: Self closin, non - hold open. Flow controller.
Flow cycle 1-20 seconds. Integral shut-off valve. ½”BSP
male inlet.
Code:
KM6.000
Tel: 0861 21 21 21
Email: [email protected]
www.cobra.co.za