George Fischer 3-Way Horizontal Ball Valve Type 343
George Fischer plastic
ball valves have the
following outstanding
features:
• Corrosion resistance
• Ideal flow
characteristics
• Long working life,
maintenance-free
• Light weight
• Silicone free versions
available
• Ball valves Type 343
can be equiped with
George Fischer
electric or pneumatic
actuators (refer to
Type 101 and Type
201 in Section 11)
• Can be actuated
after installation
George Fischer offers a wide range of
manually operated ball valves. The
introduction of the new 3-way ball valve
further extends the industrial product
range. 3-way ball valves are usually
installed for diverting and mixing liquids
in piping systems. While the 3-way ball
valve with L-port is used for the distribution of liquids or the interruption of the
flow, the T-port ball valve is the ideal
solution for mixing of liquids.
The Type 343 is available in PVC, CPVC,
PP and PVDF and also in all the relevant
standards ISO/DIN, BS, ASTM/ANSI,
JIS.
Technical Features
º Position indicator on handle and stem
for easy recognition of function
º Union ends for easy installation and
disassembly
º Handle with integrated tool for easy
maintenance
º High safety via 3 separately inte-
grated union bushings with left hand
threads
L-port ball:
Provides independent connection of
inlets with outlet.
T-port ball:
Provides straight through flow (left to
right), independent connection of inlets
with outlets or interconnection of all three
ports.
º High reliability and long life-span via
3 separate PTFE ball seals directly in
contact with the ball, supported by an
O-ring
removal of the connection parts for
easy inspection and maintenance.
The pipeline should be depressurised before dismantling.
c) Union bushing with left-hand thread
and molded end prevents ball from
being blown out by line fluid.
d) Balls with L- or T-port with diverting/
mixing function.
e) Double sealing on the stem for
maintenance free operation.
h
e
f
l
c
f)High strength stem.
g) PTFE ball seal is extremely abrasion
resistant and has good antifriction
properties, good chemical resistance
and a long service life.
h) Backing O-ring automatically com-
pensates for expansion and contraction in the valve and ball seal wear,
resulting in maintenance free operation with low friction ball movement.
k) Handle with integrated position indi-
cator and tool function: the position
of the ball is visible on the handle.
The integrated cams allow the
assembly and dismantling of the ball
valve without additional tooling.
l)Integrated fixing with insert screws.
b
d
a
10.46
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Page 3
Ball Valves
Functions
The following illustrations show the functions and the corresponding position of
the handle:
Mixing function
Diverting function
Diverting function
Branch closed/
passage open
L-port
T-port
*
*
Closed
10
Example 1Example 2
* Cv/kv-value low
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10.47
Page 4
Flow Characteristics
The kv factor is defined as the flow rate of water in litres per minute with a pressure drop of 1 kg/cm2 across the
valve.
The shown k
v-values are in %, to calculate the absolute flow multiply these values with the corresponding values
from the tables.
L-port
Valve positions L-port:
Flow A . B and A . C
100%
90%
A - B
80%
70%
60%
50%
[%]
v
K
40%
30%
20%
10%
0%
04590135180225270315360
a Angle of operation
K
v Kv-value
[°]
a
A - BA - C
F176.1
T-port
Valve positions T-port:
Flow C . A and C . B
100%
C - B
90%
80%
70%
60%
50%
[%]
v
K
40%
30%
20%
10%
0%
04590135180225270315360
C - A
Flow A . B and A . C
100%
90%
80%
C - B
C - A
[°]
a
F200.1
70%
60%
50%
[%]
v
K
40%
30%
20%
10%
0%
04590135180225270315360
A - B
A - C
A - C
A - B
[°]
a
F177.1
a Angle of operation
v Kv-value
K
10.48
a Angle of operation
v Kv-value
K
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Page 5
Pressure Loss Characteristics
Ball Valves
L-port
Flow C . A
Valve position: 90°
1
0.1
0.01
0.001
1101001000
Medium: water, 20°C
X Flow rate (l/min)
Y Pressure loss p (bar)
DN10 DN15 DN20 DN25 DN32 DN40
X
T-port
Flow A . C
Valve position: 180°
DN50
T-port
Flow A . B
Valve position: 90°
DN20
1
0.1
0.01
0.001
110100100010000
DN10 DN15
X
Medium: water, 20°C
X Flow rate (l/min)
Y Pressure loss p (bar)
DN25
DN32
T-port
Flow C . A and C . B
Valve position: 180°
DN40
DN50
10
1
0.1
0.01
0.001
1101001000
DN10 DN15 DN20 DN25 DN32 DN40
X
Medium: water, 20°C
X Flow rate (l/min)
Y Pressure loss p (bar)
DN50
1
0.1
0.01
0.001
1101001000
DN10 D N15 DN20 DN25 DN32 DN40
X
Medium: water, 20°C
X Flow rate (l/min)
Y Pressure loss p (bar)
DN50
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10.49
Page 6
L-port
Flow A . C, C . A, B . C, C . B
Valve position: 90°
L-port
Flow A . B
Valve position: 225°
InchC
sizegal/minl/minmm
3/8
1/2
3/4
1
1 1/4
1 1/2
2
vK
3.50 5016
5.25 752o
10.50 15025
19.60 28032
33.61 48040
43.42 62050
86.13123063
v
100d
T-port
Flow A . B
Valve position: 90°
InchCvKv 100d
sizegal/minl/minmm
3/8
1/2
3/4
1
1 1/4
1 1/2
2
9.80 14016
14.01 20020
32.91 47025
55.53 79332
90.34129040
133.75191050
217.09310063
InchCvKv 100d
sizegal/minl/minmm
3/8
1/2
3/4
1
1 1/4
1 1/2
2
0.70 1016
1.05 1520
2.10 3025
3.50 5032
6.30 9040
7.7011050
15.4122063
T-port
Flow A . C
Valve position: 180°
InchCvKv 100d
sizegal/minl/minmm
3/8
1/2
3/4
1
1 1/4
1 1/2
2
2.80 4016
4.90 7020
10.50 15025
17.51 25032
32.9147040
42.02 60050
84.73121063
T-port
Flow C . A and C . B
Valve position: 180°
InchCvKv 100d
sizegal/minl/minmm
3/8
1/2
3/4
1
1 1/4
1 1/2
2
C
v = gal./min at 1 psi pressure drop
Kv = litres/min at 1 bar pressure drop
2.45 3516
3.50 5020
9.1013025
14.0120032
26.6138040
32.9147050
62.3289063
10.50
¬ ‡
Page 7
Dimensions
3-Way Ball Valve Type 343 Horizontal
with sockets
Ball Valves
L
3
PVC
CPVC
solvent cement sockets
PP
metric fusion sockets
PVDF
metric fusion sockets
d DNInchz z1DHH1H
mm mmsizeinch inchinchinch inch inchinchinchinch inch inch inchmm
The 3-way ball valve Type 343 has an
integrated mounting unit (insert screws in
high-grade steel). The George Fischer
mounting blocks are designed to allow
ble with George Fischer’s pipe clips.
The mounting blocks can be used for
PVC, CPVC, PP, PVDF ball valves Type
343 horizontal, 3/8" - 2".
different size George Fischer Valves to
be aligned with the same pipe center
line by equalizing the different heights
from the base to the center line of the
Mounting blocks:
material PP-GF 15, black,
3 sizes
pipe. They are designed to be compati-
Mounting Blocks for
3-Way Horizontal Ball Valve Type 343
* FPM seals are made of Viton® or equal materials.
®
is a registered trademark of DuPont Dow Elastomers.
Viton
¬ ‡
Page 13
Product Specification
Ball Valves
*FPM seals are made of
®
or equal materials.
Viton
®
Viton
is a registered trademark of DuPont Dow Elastomers.
Type 343 True Union 3-Way
Ball Valve - PVC
PVC true union 3-way ball valves 3/8"
through 2" shall be available in horizontal configuration and have either solvent
cement socket or threaded pipe connections. Horizontal configurations shall be
supplied with a union connection on the
outlet branch, it having its own individual
ball seat (seal) enabling the option to be
supplied with a "T" ported ball for flowthrough operation. Incorporated into its
design safety features is a blow-out
proof stem and the ability to hold
pressure when the downstream union nut
is removed. Seats shall be PTFE with
backing rings creating self-adjusting
seals and constant operating torque.
Backing rings and seals shall be EPDM
or FPM*. The handle shall include in its
design a key for removal of the seat
carrier in addition to having sufficient
elevation to permit hand clearance. Seat
carrier shall have left-hand threads to
prevent possible unscrewing when
threaded end connectors are removed
from pipe. Material shall meet or exceed
the requirements of 12454-B according
to the classifications and requirements of
ASTM D-1784. Socket end connection
dimensions shall conform to ASTM D-
2467. Threaded pipe connections shall
be in accordance with ASTM D-2464
which references ANSI B1.20.1 (was
B2.1) for tapered pipe threads. Optional
flanged version shall be in accordance
with ANSI B16.5, class 150 flanges. The
valve, type 343, shall carry a pressure
rating of 150 psi at 68°F as supplied by
George Fischer, Inc., Tustin, CA 92780.
Type 343 True Union 3-Way
Ball Valve - CPVC
CPVC true union ball valves 1/2"
through 2" shall be available in horizontal configuration and have either solvent
cement socket or threaded pipe connections. Horizontal configurations shall be
supplied with a union connection on the
outlet branch, it having its own individual
ball seat (seal) enabling the option to be
supplied with a "T" ported ball for flowthrough operation. Incorporated into its
design safety features is a blow-out
proof stem and the ability to hold
pressure when the downstream union nut
is removed. Seats shall be PTFE with
backing rings creating self-adjusting
seals and constant operating torque.
Backing rings and seals shall be EPDM
or FPM*. The handle shall include in its
design a key for removal of the seat
carrier in addition to having sufficient
elevation to permit hand clearance. Seat
carrier shall have left-hand threads to
prevent possible unscrewing when
threaded end connectors are removed
from pipe. Material shall meet or exceed
the requirements of 23447-B according
to the classifications and requirements of
ASTM D-1784. Socket end connection
dimensions shall conform to ASTM F439
(formerly D-2467). Threaded end connections shall conform to the dimensions
as listed in ASTM F437 (formerly D-2464)
which references ANSI B1.20.1 (was
B2.1) for tapered pipe threads. The
valve, type 343, shall carry a pressure
rating of 150 psi at 68°F as supplied by
George Fischer, Inc., Tustin, CA 92780.
10
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10.57
Page 14
Product Specification
*FPM seals are made of
Viton® or equal materials.
®
is a registered
Viton
trademark of DuPont Dow
Elastomers.
10.58
Type 343 True Union 3-way
Ball Valve - PVDF
PVDF true union 3-way ball valves 1/2"
through 2" (20 mm - 63 mm) shall be
available in horizontal configuration and
have either metric fusion socket or
threaded type pipe connections. Horizontal configurations shall be supplied
with a union connection on the outlet
branch, it having its own individual ball
seat (seal) enabling the option to be
supplied with a "T" ported ball for flowthrough operation. Incorporated into its
design safety features is a blow-outproof stem and the ability to hold
pressure when the downstream union nut
is removed. Seats shall be PTFE with
backing rings creating self-adjusting,
constant operating torque sealing
characteristics. Backing rings and seals
shall be FPM*. The handle shall include
in its design a key for removal of the seat
carrier in addition to providing sufficient
height to permit hand clearance. Seat
carrier shall have left-hand threads to
prevent possible unscrewing when
threaded end connector is installed on
the pipe. Material shall meet or exceed
the requirements of ASTM D 3222 as
pertains to a natural, unpigmented,
virgin, noncompounded polyvinylidene
fluoride compound having a minimum
tensile strength of 7800 psi/538 bar at
73°F/20°C when tested in accordance
with ASTM D 638 and shall have a
flexural strength of 10,700 psi/738 bar
at 73°F/20°C when tested according to
ASTM D 790. End connections shall be
as outlined in ASTM D 2657 for fusion
socket joining, and shall be compatible
with metric pipe and fittings as manufactured by George Fischer, Inc. Threaded
end connections shall be in accordance
with ASTM D 2464 which references
ANSI B 1.20 (was B 2.1) for tapered pipe
threads. The valve, Type 343, shall carry
a pressure rating of 150 psi/10 bar at
68°F/20°C as supplied by George
Fischer, Inc., Tustin, CA 92780.
Type 343 True Union 3-way
Ball Valve – Polypropylene
Polypropylene true union 3-way ball
valves 1/2" through 2" (20 mm – 63 mm)
shall be available in horizontal configuration and have either metric fusion socket
or threaded type pipe connections.
Horizontal configurations shall be supplied with a union connection on the
outlet branch, it having its own individual
ball seat (seal) enabling the option to be
supplied with a "T" ported ball for flowthrough operation. Incorporated into its
design safety features is a blow-out-proof
stem and the ability to hold pressure
when the downstream union nut is
removed. Seats shall be PTFE (Teflon
®
)
with backing rings creating self-adjusting,
constant operating torque sealing characteristics. Backing rings and seals shall be
EPDM or FPM*. The handle shall include
in its design a key for removal of the seat
carrier in addition to providing sufficient
height to permit hand clearance. Seat
carrier shall have left-hand threads to
prevent possible unscrewing when
threaded end connector is installed on the
pipe. Material shall meet or exceed the
requirements of ASTM D 4101 as pertains
to a type I homopolymer compound
having a minimum tensile strength of 4350
psi/300 bar at 73°F/20°C when tested in
accordance with ASTM D 638 and shall
have a melt point which initiates at 316°F/
158°C. The melt flow index (at 374°F/
190°C/50 N) shall be 0.4 –0.8 grams per
10 minutes in accordance with ASTM D
1238. End connections shall be as outlined in ASTM D 2657 for fusion socket
joining, and shall be compatible with
metric pipe and fittings as manufactured
by George Fischer, Inc. Threaded end
connections shall be in accordance with
ASTM D 2464 which references ANSI B
1.20 (was B 2.1) for tapered pipe threads.
Optional flanged version shall be in
accordance with ANSI B 16.5 class 150
flanges. The valve, Type 346, shall carry a
pressure rating of 150 psi/10 bar at 68°F/
20°C as supplied by George Fischer, Inc.,
Tustin, CA 92780.
¬ ‡
Page 15
Ball Valves
Component Parts for Type 343 PVC True Union Ball Valve
No.Part/MaterialQty 3/8"1/2"3/4"1"1-1/4"1-1/2"2"
OD d 16 mm d 20 mmd 25 mmd 32 mmd 40 mmd 50 mmd 63 mm
ID DN 10 mm DN 15 mmDN 20 mmDN 25 mmDN 32 mmDN 40 mmDN 50 mm
Seal sets:161 484 941161 484 941161 484 942161 484 943161 484 944161 484 945161 484 946
8Backing seals EPDM 3
9Body seal EPDM3
10Face seal EPDM3
11Stem seals EPDM2
Seal sets:161 486 951161 486 951161 486 952161 486 953161 486 954161 486 955161 486 956
8Backing seals FPM3
9Body seal FPM3
10Face seal FPM3
11Stem seals FPM2