Honeywell ZN170, Z171T, VR170 Product specification sheet
VR170
VR170, ZN170, Z171T
Float valve for water storage tanks
with option of stainless steel or plastics floats
Product specification sheet
Application
ZN170
Z171T
Float valves of this type regulate a fluid level in vented open or
closed storage vessels or can be used for filling of water supply
storage tanks. Within the scope of their specification they can be
used for industrial or commercial installations or also for public
water supply systems. A soft seat seal pro-vides positive shutoff,
even with fluctuating supply pressure.
Special Features
• Available with plastics or stainless steel floats
• Float can be fitted horizontally or vertically
• Open construction design
• External thread connection to DIN 228
• High flow capacity
• Seat seal and piston replaceable
• Lever arm can be shortened where supply pressure is low
Construction
The float valve comprises:
•Housing
• Piston
• Lever arm
•Float
Materials
• Brass housing (
• Brass piston
• Brass lever arm (
• Plastics or stainless steel float
• NBR seals
1
/2" to 2") or red bronze (21/2")
1
/2" to 1") or stainless steel (11/4" to 21/2")
Range of Application
Medium Water and neutral liquids
Installation Horizontally on water storage vesse
Technical Data
Max. operating
temperature
Max. operating pressure
Connection size R
65 °C with plastics float
90 °C with stainless steel float
6.0 bar
8.0 bar with stainless steel float of next
larger size
1
/2" - R21/2"
EN0H-1322GE23 R0807 • Subject to change
www.honeywell.com 87
VR170, ZN170, Z171T Float valve for water storage tanks
VR170
ZN170
Method of Operation
Float valves work in conjunction with floats to control the level of
liquids in containers. The float is at the level of the liquid in the
container and acts directly on the lever arm of the float valve. A
variation in liquid level immediately causes a change in the flow
rate through the float valve.
Options
VR170- ... A= Standard version
ZN170- ... A= Stainless steel float, for VR170- ... A
Connection size
Z171T
Bestellbeispiel
Z171T-1/2A= Plastics float, for VR170-1/2A to 1A
Z171T-11/4A = Plastics float, for VR170-11/4A to 2A
Float valve VR170
Connection size R
Outlet R1
1
/2"
3
/8"
3
/4"1"1
1
/2"
3
/4"1"1
1
/4"1
1
/2"2"2
1
/4"1
1
/2"2"
1
/2"
Total weight kg 1.0 1.1 1.3 2.0 2.6 3.8 5.3
Dimensions (mm)
∅ D
0
9
L
600
A
120
B
90
C
30
l
1
30
l
2
54
12
610
130
100
30
35
54
15
720
135
110
37
38
54
20
730
180
130
44
45
66
25
890
315
150
50
50
66
30
900
325
165
55
50
78
35
1150
430
185
62
55
78
Lever arm BxTxL 15x6x570 15x6x570 15x6x680 20x6x680 20x6x825 20x6x825 20x8x1060
k
-value m3/h 2 3.6 5.5 9.4 13 17.5 21
vs
Stainless steel float ZN170
Connection size R
1
/2"
3
/4"1"1
1
/4"1
1
/2"2"2
1
/2"3"
Weight kg 0.4 0.5 0.7 0.8 1.0 1.2 1.2 1.4
Dimensions (mm)
∅ D
0
153
H
163
h
125
153
178
140
183
188
150
183
225
180
233
225
180
233
268
220
310
245
200
330
245
200
Lift approx.kg1.5 1.7 2.8 3.5 5.0 6.5 8.5 11.5
Plastics float Z171T
Connection size R For 1/2" 3/4" 1" float valves For 11/4" 11/2"* 2"** float valves
Weight kg 0.2 0.4
Dimensions (mm)
D0
Lift approx.
H
h
248
130
1.2 3.5
130
200
278
160
kg
* Valve connection 11/2" to 5 bar and
** Valve connection 2" to 3 bar operating pressures
Automation and Control Solutions
Honeywell GmbH
Hardhofweg
D-74821 Mosbach
Phone: (49) 6261 810
Fax: (49) 6261 81309
http://europe.hbc.honeywell.com
Manufactured for and on behalf of the
Environmental and Combustion Controls Division
of Honeywell Technologies Sàrl, Ecublens, Route
du Bois 37, Switzerland by its Authorised Representative Honeywell GmbH
EN0H-1322GE23 R0807
Subject to change without notice
© 2007 Honeywell GmbH
www.honeywell.com
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