GENERAL
These single-seated valves are suitable for use in conjunction with the modulating control of hot / chilled water or steam in closed heating, ventilating, and air conditioning systems. They are designed especially for use in high differential pressure applications (e.g. district heating) and can be operated by linear actuators ML6420/ML6425, ML7420/ML7425, or ML6421/ML7421 or by pneumatic actuators MP953.
Copyright © 2009 Honeywell Inc. • All Rights Reserved
V5025A
FLANGED LINEAR VALVE PN25
SPECIFICATION DATA
FEATURES
•Pressure-balanced plug
•Nodular iron body with flanged end connections
•Low seat leakage rate
•Metal-to-metal seating for long life span
•Self-adjusting packing
•Accurate positioning to ensure state-of-the-art temperature control
•Easy mounting of direct-coupled electric and pneumatic actuators
•Approved according to DIN EN 14597 in DN15...80 in combination with ML6425/ML7425
SPECIFICATIONS
Action |
Stem down to close |
Nominal pressure rating |
PN25 |
Flow characteristic |
Equal percentage |
Rangeability |
50:1 |
Leakage rate |
≤0.05% of kVS (DN15...80) |
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≤0.1% of kVS (DN100...150) |
Stroke |
20 mm (DN15...80) |
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38 mm (DN100...150) |
Valve body |
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End connections |
Flanged per ISO 7005-2 |
Material |
Nodular iron (GGG40.3) |
Dimensions |
See Fig. 1 on page 3 |
Trim |
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Seat |
Stainless steel |
Stem |
Stainless steel |
Plug |
Stainless steel, skirt-guided |
Packing |
Spring-loaded PTFE cone rings |
Medium temperature |
2...120 °C (max. 2500 kPa) |
and pressure |
120...160 °C (max. 2250 kPa) |
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160...200 °C (max. 2000 kPa) |
Max. temp. differential |
60 K (alternating hot/cold water) |
Medium |
water, water-glycol (max. 50%), |
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steam |
EN0B-0442GE51 R0709
V5025A FLANGED LINEAR VALVE PN25
SIZES AND FLOW CAPACITIES
Order Number |
Valve Size |
kVS |
V5025A1019 |
DN15 |
0.40 |
V5025A1027 |
DN15 |
0.63 |
V5025A1035 |
DN15 |
1.0 |
V5025A1043 |
DN15 |
1.6 |
V5025A1050 |
DN15 |
2.5 |
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V5025A1068 |
DN15 |
4.0 |
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V5025A1076 |
DN20 |
6.3 |
V5025A1084 |
DN25 |
10.0 |
V5025A1092 |
DN32 |
16.0 |
V5025A1100 |
DN40 |
25.0 |
V5025A1118 |
DN50 |
40.0 |
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V5025A1126 |
DN65 |
63.0 |
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V5025A1134 |
DN80 |
100.0 |
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V5025A1142 |
DN100 |
160.0 |
V5025A1159 |
DN125 |
250.0 |
V5025A1167 |
DN150 |
360.0 |
INSTALLATION
•Water should meet VDI 2035 requirements.
•Do not install valve with stem below the horizontal.
•Fluid flow must correspond with the arrow direction on the valve body.
•The installation of a strainer is strongly recommended.
REPAIR PACKING KIT
Part No.: |
R43176755004 |
(DN15...80) |
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R43176755005 |
(DN100...150) |
ACTUATORS
Electric Actuators
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600 N (20 mm) |
600 N (20 mm), |
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1800 N (38 mm) |
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spring return |
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ML6420A |
ML6425A,B |
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ML6421B |
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ML7420A |
ML7425A,B |
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ML7421B |
Pneumatic Actuators
actuator |
stroke |
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acting |
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positioner |
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model |
size |
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direct |
reverse |
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MP953A |
5", 8" |
20 mm |
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X |
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yes |
13" |
38 mm |
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MP953B |
7" |
20 mm |
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X |
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MP953C |
5", 8" |
20 mm |
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X |
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no |
13" |
38 mm |
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MP953D |
7" |
20 mm |
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X |
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CLOSE-OFF PRESSURE RATINGS (in kPa)
Electric Actuators
actuator |
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valve size |
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model |
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stroke |
force |
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DN15 |
DN20 |
DN25 |
DN32 |
DN40 |
DN50 |
DN65 |
DN80 |
DN100 |
DN125 |
DN150 |
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ML6420A, ML6425A,B, |
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20 mm |
600 N |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
-- |
-- |
-- |
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ML7420A, ML7425A,B |
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ML6421B, ML7421B |
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38 mm |
1800 N |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
2500 |
2500 |
2500 |
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Pneumatic Actuators
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actuator |
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valve size |
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model |
spring |
air |
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DN15 |
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DN20 |
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DN25 |
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DN32 |
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DN40 |
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DN50 |
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DN65 |
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DN80 |
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DN100 |
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DN125 |
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DN150 |
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range |
pressure |
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MP953A,C (5") |
28...77 kPa |
115 kPa |
2500 |
2500 |
2500 |
2500 |
2500 |
1600 |
1200 |
-- |
-- |
-- |
-- |
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(4...11 psi) |
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MP953A,C (8") |
28...77 kPa |
115 kPa |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
-- |
-- |
-- |
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(4...11 psi) |
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MP953B,D (7") |
55...90 kPa |
0 kPa |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
-- |
-- |
-- |
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(8...13 psi) |
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MP953A,C (13") |
28...77 kPa |
115 kPa |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
2500 |
2500 |
2500 |
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(4...11 psi) |
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EN0B-0442GE51 R0709 |
2 |
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