Noiseless Heater Vacuum Relief Valve 16 heater.pdf · Noiseless Heater Vacuum Relief Valve Step 0...
Transcript of Noiseless Heater Vacuum Relief Valve 16 heater.pdf · Noiseless Heater Vacuum Relief Valve Step 0...
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16Noiseless HeaterVacuum Relief Valve
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Noiseless HeaterVacuum Relief Valve
Step 0 Type/Structure/Features Please refer to this for structure and feature of Noiseless
Heater and Vacuum Relief valve.
Step 1 Selection Please look at the ID chart to choose the right products
depending on the intended of uses. Confirm the additional
details on the product page.
Step 2 Sizing Please refer to P.16-6 to 7.
Step 3 Attention for usage Please check some guidelines for optimal usage of
Noiseless Heater and Vacuum Relief Valve such as
installation.
Purposes and Types of Noiseless Heaters
■Purposes of Noiseless Heaters
■Types and Principles of Noiseless Heaters
· A noiseless heater is used to reduce noise and vibration generated when steam is blown into water to produce hot
water.· A sound deadening effect can be expected by connecting a noiseless heater to piping simply.
MS-1
MS-2
MS-6
Steam and water are mixed and discharged from the outlet.* Noiseless heaters
cannot be used as direct mixing type inline heaters.
Steam is blown out from the nozzle and mixed with water.
Steam produces hot water while drawing water around.
60˚C
90˚C
90˚C
Simple in structure and trouble-free. Just attach to the end of piping.
Available in a higher temperature range than the MS-1.
Lotus root shape, compact, and produces less vibration and noise.
* The max. warning sound temperature limit means the upper limit temperature at which a sound deadening effect can be expected.
Lotus Root Shape Noiseless Heater MS-6
It is compact size and produces less noise.
Stainless steel made body offers outstanding durability.
The use of hot water is indispensable in food processing,
cleaning, and plating operations. Although the simplest
and most efficient way to provide the hot water is by a
direct heating format. Such format often results in
vibration and noise caused by steam blowing into the
water tank that can be greatly reduced by mounting an
MS-6 noiseless heater at the end of the pipe.
water
steam
Sound deadening principleMax. warning sound temperature limit * Features
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Why Vacuum Relief Valves are Necessary
Vacuum Relief Valve VB-7
VB-7
■NecessityA vacuum relief valve is used to introduce air into a device or piping and, at
the same time, prevent accidents attributable to a negative pressure
(vacuum).
■What is a Vacuum?A vacuum means a specific state of space filled with a gas whose pressure
is lower than the atmospheric pressure.
When it comes to setting under pressure, a vacuum relief valve is used to introduce air into a device or piping and, at
the same time, prevent accidents attributable to a negative pressure (vacuum). In addition, it ensures to prevent
water pulling at the time of steam stop in the meanwhile water from tank directly touched with steam and transform
into hot water.
VALVE CLOSE VALVE OPEN
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Vacuum Relief Valve ID-Charts
Noiseless Heater ID-Charts
Model Fluid Material
Pressure regulating
range(KPa)
Maximumtemperature
(˚C)Connection Size Feature Page
VB-7
Steam, Air
C3604
-0.5 to -81 200˚C JIS R
15-50A 16-9
VB--7S SUS304 15-50A · Stainless steel made 16-9
Model Fluid MaterialMaximumpressure
(MPa)
Max.warning sound
temperature limit(˚C)
Connection Size Feature Page
MS-1
Steam
CAC406
0.7 60˚C JIS Rc
15-50A · F-type 16-11
MS-3-13 SCS13 15-50A· F-type· Stainless steel made
16-11
MS-2
Steam
CAC406
0.7 90˚C JIS Rc
15-50A · S-type 16-12
MS-4-13 SCS13 15-50A· S-type· Stainless steel made
16-12
MS-6 Steam SUS304 0.7 90˚C JIS Rc 15-50A · Stainless steel made 16-13
* Please contact us about other specifications.
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eVACUUM RELIFE VALVES & NOISELESS HEATERS Control Charts
Sizing for Noiseless Heaters
■Flow Rate Chart
■MS-6 Noise Characteristic Chart
· MS-1, 3
· MS-6 · Steam pressure {0.3 MPa}
· Steam pressure {0.5 MPa}
· The noise characteristics of the MS-6 noiseless heater depend on the size and shape of the fluid tank, and the position where the noiseless heater is installed. Use these steam noise characteristic charts for reference.
· The noise levels are values measured at 1 meter above the water surface.
· MS-2, 4
1000
900
800
700
600
500
400
300
200
100
00.1 0.2 0.3 0.4 0.5 0.6 0.7
40A
32A
25A
20A
15A
50ANominal size
W: F
low
rat
e kg
/h
P: Steam pressure MPa
1000
900
800
700
600
500
400
300
200
100
00.1 0.2 0.3 0.4 0.5 0.6 0.7
50A
40A
32A
25A
15A
Nominal size
W: F
low
rat
e kg
/h
P: Steam pressure MPa
20A
1000
900
800
700
600
500
400
300
200
100
00.1 0.2 0.3 0.4 0.5 0.6 0.7
40A
32A
25A
20A
15A
Nominal size50A
W: F
low
rat
e kg
/h
P: Steam pressure MPa
80
70
60
30 40 50 60 70 80 900
Nominal size 15A-25A Nominal size 32A-50A
80
70
60
30 40 50 60 70 80 900Temperature ˚C
Noi
se le
vel:
dB
(A)
Temperature ˚C
Noi
se le
vel:
dB
(A)
Nominal size 15A-25A Nominal size 32A-50A
80
70
60
30 40 50 60 70 80 900
80
70
60
30 40 50 60 70 80 900Temperature ˚C
Noi
se le
vel:
dB
(A)
Temperature ˚C
Noi
se le
vel:
dB
(A)
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■Nominal Size Selection Chart
Sizing for Vacuum Relief Valve
45
40
35
30
25
20
15
10
–100 –20 –30 –40 –50 –70 –80 –60
5
0
50A
40A
32A
25A
15A・20A
Nominal sizeFl
ow
rat
e kg
/h
Pressure kPa
* Chart of the flow rate is for reference value.
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Guidelines for Noiseless Heater/Vacuum Relief Valve
<Calculation formula>The quantity of steam required to increase the temperature of Q kg of water by B˚C in time A (h) is:
W = B x Q500 x A
W = = 560 (kg/h)(60 – 20) x 7000500 x 1
Select a nominal size by applying the calculated quantity of steam W and the steam pressure P to the flow rate chart for nominal size selection.(Note) Use the flow rate chart for nominal size selection for reference.
<Calculation example>When increasing the temperature of 7000 kg of water from 20˚C to 60˚C in an hour with 0.5 MPa steam
W = B x Q500 x A
W = = 560 (kg/h)(60 – 20) x 7000500 x 1
· When an MS-2 silencer is used By applying the pressure of 0.5 MPa and the steam quantity of
560 kg/h to the flow rate chart for MS-2 nominal size selection, the nominal size of the MS-2 should be 50A.
Solenoid valve
VB-7 Vacuum
relief valve
MS-6Noiseless heater
Solenoid valveVB-7
Vacuum relief valve
MS-6Noiseless heater
Stop valve
VB-7Vacuum
relief valve
Unit heater
Floattrap
Sight glass
Strainer
Stop valve
· Piping example of a noiseless heater without check valve
· Piping example of equipment for temperature regulation with vacuum relief valve
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eVacuum Relief Valve
VB-7,7S
1. Protects devices and piping by adjusting vacuum and preventing
accidents resulting from vacuum pressure.
2. Special valve structure ensures stable performance without
chattering and hunting.
3. Compact, lightweight and easy to handle.
4. Made of corrosion resistant material.
■Features
■Specification
■Dimensions (mm) and Weights (kg)
Steam, Air1.0 MPa
200˚C
JIS R screwed
Spring ASpring BSpring C
–0.5 to –21 kPa (Standard set pressure: –4 kPa)–21 to –48 kPa (Standard set pressure: –21 kPa)–48 to –81 kPa (Standard set pressure: –48 kPa)
ModelApplication
Working pressure
Pressure regulating range
Maximum temperature
Connection
Material
VB-7SVB-7
Stainless steelCast stainless steel
Stainless steel
BrassCast bronze
Brass
BodyValve
Valve seat
Nominal size15A20A25A32A40A50A
Weight0.500.500.751.051.452.45
100.0100.0112.5113.5130.0165.5
353541505565
d H AR 1/2R 3/4R 1R 1-1/4R 1-1/2R 2
(VB-7S)
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VB-7, 7S
■Example Piping Diagram
■Nominal Size Selection Chart
45
40
35
30
25
20
15
10
–100 –20 –30 –40 –50 –70 –80 –60
5
0
40A
32A
25A
Flo
w r
ate
kg/h
Pressure kPa
15A∙20A
Nominalsize50A
VB-7Vacuum relief valve
Discharge Strainer
Stopvalve
Sight glass
Floattrap
VB-7Vacuum relief valve
Stopvalve
Unit heater
MS-2Noiseless heater
Tank
<Piping example of temperature regulating equipment> <Piping example of noiseless heater without check valve>
* Chart of the flow rate is for reference value.
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MS-1,MS-3 (MS-3)
1. Noise can be reduced by attaching to the end of
the piping.
2. Trouble-free simple structure.
3. Made of corrosion-free stainless steel (MS-3-13).
■Features
■Specification
■Dimensions (mm) and Weights (kg) ■Nominal Size Selection Chart
ModelApplication
Working pressureMax. warning sound temperature limit
MaterialConnection
MS-1 MS-3-13Steam
0.05-0.7 MPa60˚C
JIS Rc screwedCast bronze Cast stainless steel
Nominal size15A20A25A32A40A50A
Weight0.40.40.81.02.04.0
100110140180200270
253035455065
d L50557090
100130
L1
50557090
100140
L2 H1
Rc 1/2Rc 3/4Rc 1Rc 1-1/4Rc 1-1/2Rc 2
P: Steam pressure MPa
1000
900
800
700
600
500
400
300
200
100
00.1 0.2 0.3 0.4 0.5 0.6 0.7
W: F
low
rat
e kg
/h
Nominalsize
40A
32A
25A
20A
15A
50A
Steam
Water
* Chart of the flow rate is for reference value.
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MS-2,MS-4 (MS-4)
1. Noise can be reduced by attaching to the end of the piping.
2. Trouble-free simple structure.
3. Available in a higher temperature range than the MS-1 and MS-3.
4. Made of corrosion-free stainless steel (MS-4-13).
■Features
■Specification
■Dimensions (mm) and Weights (kg) ■Nominal Size Selection Chart
Steam0.1-0.7 MPa
90˚C
JIS Rc screwed
ModelApplication
Working pressureMax. warning sound temperature limit
MaterialConnection
MS-2 MS-4-13
Cast bronze Cast stainless steel
Nominal size15A20A25A32A40A50A
Weight0.5 (0.4)0.81.3 (1.2)3.2 (2.2)4.2 (3.9)7.0 (5.4)
577175
105115142
d C7093
125155175220
BRc 1/2Rc 3/4Rc 1Rc 1-1/4Rc 1-1/2Rc 2
W: F
low
rat
e kg
/h
P: Steam pressure MPa
1000
900
800
700
600
500
400
300
200
100
00.1 0.2 0.3 0.4 0.5 0.6 0.7
40A
32A
25A
20A
15A
Nominalsize50A
Steam
* Chart of the flow rate is for reference value.
* Nozzle shape, hole diameter and the number of holes are different depending on the nominal diameter.
* The above values in parentheses are the weights of MS-4-13.
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MS-6
1. Stainless steel made body offers outstanding
durability.
2. Easy to connect to piping, inexpensive.
3. Easy to maintain.
■Features
■Specification
Steam0.05-0.7 MPa
90˚CStainless steel
JIS Rc screwed
ApplicationWorking pressure
Max. warning sound temperature limitMaterial
Connection
■Dimensions (mm) and Weights (kg)Nominal size
15A20A25A32A40A50A
Weight0.250.400.520.771.152.99
48.54952555965
3545506070
105
d L DRc 1/2Rc 3/4Rc 1Rc 1-1/4Rc 1-1/2Rc 2
Steam
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MS-6
■Nominal Size Selection Chart
■Noise Characteristic Chart
· Steam pressure {0.3 MPa}
· Steam pressure {0.5 MPa}
W: F
low
rat
e kg
/h
1000
900
800
700
600
500
400
300
200
100
0
P: Steam pressure MPa
0.1 0.2 0.3 0.4 0.5 0.6 0.7
50A
32A
25A
Nominalsize
15A
40A
20A
80
70
60
30 40 50 60 70 80 900
Temperature ˚C
Nominal size 15A-25A
Noi
se le
vel:
dB
(A)
80
70
60
30 40 50 60 70 80 900
Temperature ˚C
Nominal size 32A-50A
Noi
se le
vel:
dB
(A)
80
70
60
30 40 50 60 70 80 900
Nominal size 15A-25A
Temperature ˚C
Noi
se le
vel:
dB
(A)
80
70
60
30 40 50 60 70 80 900
Temperature ˚C
Nominal size 32A-50A
Noi
se le
vel:
dB
(A)
· The steam noise characteristic chart depends on the size or shape of the liquid tank, the location of the noiseless heater, and other factors. Use it for reference.
· The noise level was measured at a point 1 meter above the water surface.
* Chart of the flow rate is for reference value.
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CAUTION Please refer to the manual attached to the product for procedures for installation and operation.
Caution for installation Noiseless Heater
Piping example Noiseless Heater
· To obtain a result as planned, fully utilize the nominal size selection chart.· There are various methods in attachment. Consider intake position and discharge position with the tank size, etc (see piping example).· Use noiseless heater with sinking under water inside tank. If used as piping example-B, makeℓlength as short as possible.· Install noiseless heater 300 mm or more away from wall or bottom of tank.· To prevent back flow phenomenon when steam is stopped, installation of VB-7 vacuum relief valve is recommended.
■For MS-1, 3
■For MS-2,4
■For MS-6
MS-1 to 6 Noiseless Heater – Annex
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CAUTION Please refer to the manual attached to the product for procedures for installation and operation.
Troubleshooting Vacuum Relief Valve
Trouble Cause Remedy
Fluid leakage from cap can be checked visually or by sound.
Foreign substances are stuck on the contact ………face between valve and valve seat.Contact face between valve and valve seat is ………damaged.Malfunction occurs due to vibration at the piping ……where the product is installed.Difference between set pressure and normal …………pressure of the product is small.
Sliding part of valve and valve seat does not …………move smoothly.
Repair at our factory is needed.
Product disassembly and parts replacement are needed. Repair at our factory is needed.The product cannot be used for devices or equipments where large vibration occurs.Difference between set pressure and normal pressure has to be increased. To regulate set pressure again, regulation at our factory is needed.Disassembly and cleaning of the product is needed. Repair at our factory is needed.
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The product starts to work at pressure lower than set pressure.
Product specification is different with usage …………condition.
Pressure gauge is out of order. …………………………Set pressure of the product is distorted. ………………
Check the set pressure engraved on the plate of the product. If usage condition is different, replace the product.Calibrate or replace the pressure gauge.Repair at our factory is needed.
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The product does not work even at set pressure.
Product specification is different with usage …………condition.
Pressure gauge is out of order. …………………………Set pressure of the product is distorted. ………………Sliding part of valve and valve seat does not …………move smoothly.
Check the set pressure engraved on the plate of the product. If usage condition is different, replace the product.Calibrate or replace the pressure gauge.Repair at our factory is needed.Disassembly and cleaning of the product is needed. Repair at our factory is needed.
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