Pressure Regulator
with Air Filter (Airset)
Model: KZ03
User’s Manual
CM2-KZV100-2001
Copyright, Notices and Trademarks
© 2003-2019 Azbil Corporation. All Rights Reserved.
While this information is presented in good faith and believed to be
accurate, Azbil Corporation disclaims the implied warranties of merchantability and tness for a particular purpose and makes no express
warranties except as may be stated in its written agreement with and for
its customer.
In no event is Azbil Corporation liable to anyone for any indirect, special or consequential damages. e information and specications in
this document are subject to change without notice.
Table of Contents
1 : Description ..................................................................................................... 1
2 : Operational Principal
3 : Structure ......................................................................................................... 2
4 : Standard Specications .................................................................................. 3
5 : Maintenance ................................................................................................... 3
6 : Model Selection .............................................................................................. 4
7 : Dimensions and Installation ........................................................................... 5
8 : Applications .................................................................................................... 6
(Refer to the illustrations on page 2) ............... 1
Azbil Corporation
1 : Description
The Type KZ03 pressure regulator with air lter lters the supply air and regulates
the output pressure for various pneumatic equipment.
KZ03-1
140 kPa (image with optional gauge)
KZ03-2 for Variable output (Max. 400 kPa)
KZ03-3 for Variable output (Max. 700 kPa)
~Note The number “7” is stamped
with permanent ink on the body
of KZ03-3 to tell apart from
KZ03-2
2 : Operational Principal (Refer to the illustrations on page 2)
The air supply from the primary air intake goes through the lter (15), ltrating
foreign materials. The air keeps owing to the secondary air side until the secondary
pressure balances o with the set spring (15) and shuts o the poppet valve [7]. If the
secondary pressure goes up higher than the set pressure, the diaphragm [6] will rise,
let the extra air escape through the gap between the poppet and the seat ring to the
bleeding hole.
KZ03 - Pressure Regulator with Air Filter (Airset) 1
Azbil Corporation
3 : Structure
Fixed air pressure type
Variable air pressure type
Secondary
Primary
No. Parts Material Qty. No. Parts Material Qty.
1 Cap Nylon 6 1 11 Filter cover
2 Bonnet Aluminum diecast 1 12 Wing bolt Stainless steel rod SUS305 1
3 Setscrew Stainless steel rod 1 13 O-ring BunnaN 1
4 Spring support SPCC 1 14 Hex nut Stainless steel SUS304 1
Adjustment
5
spring
6 Diaphragm
7 Poppet Alloyed steel rod C3604B D 1 17 O-ring BunnaN 1
8 Poppet spring piano string SWPA 1 18 Hex nut Stainless steel SUS304 1
Poppet spring
9
receiver
Screw with
10
washer
Piano string SWPB 1 15 Filter Sponge Bel-ita
BunnaN coated Tetrin cloth
Copper Alloyed sheet C3713P
Copper Alloyed rod C3604B D
Stainless steel sheet SUS304 1 19 Set Knob
Stainless steel sheet SUS304 10 20 Bleeding Hole ---
*1
1 16 Gasket NBR 1
Aluminum diecast ADC12
Stainless steel rod SUS304
*2
A-3230 1
ABS resin Stainless steel
rod SUS304
1
*1. uorine rubber for high temperature model
*2. Option: 3µ stainless steel ber
2 KZ03 - Pressure Regulator with Air Filter (Airset)
Azbil Corporation
050 100 150 200
l/min(N)
050 100 150 200
l/min(N)
050 100 150 200
l/min(N)
Secondar
pressur
1) KZ03-1 (primary pressure 300 - 900) 2) KZ03-2 (primary pressure 500 - 900) 3) KZ03-3 (primary pressure 800 - 900)
4 : Standard Specications
The Pressure Regulators with Air Filter control the air pressure so each point of use
o the air line is supplied with constant air pressure.
Type KZ03-1 KZ03-2 KZ03-3
Primary pressure (kPa) Secondary pressure + more than 50 (970 max.)
Secondary pressure (kPa) 140 ± 4 (constant) 12 - 400 (variable) 12 - 700 (variable)
Characteristics
Pressure
characteristic
Change in
secondary
pressure (kPa)
For every 200 - 970
primary pressure: 140±4
For every 450 - 970
primary pressure: 400±4
For every 800 - 970
primary pressure:
700±4
Flow
characteristic (kPa)
140
130
120
110
y
e
Primary pressure 900
Primary pressure 300
Secondary
pressure
400
300
380
370
Primary pressure 900
Primary pressure 500
Secondary
pressure
700
690
680
670
Primary pressure 900
Primary pressure 800
Amt. of air consumption 0.951 l/min(N) or less
Materials Filter ............ 3 µm Sponge (optional 3 µm stainless steel ber)
Case ............. Aluminum die-cast
External screw and wing bolt (for drain) w/o drain: stainless
Temp. of environ. -30 to +80°C (-20 to 176°F)
Air pressure connection Rc1/4 or 1/4NPT internal screw
Draining capacity 22 cm
3
Weight 0.7 kg
5 : Maintenance
1) Loosen the wing bolt (12) periodically to drain
2) When the air lter becomes dirty, replace it with a new one. Do not attempt to
wash it with water and detergent.
KZ03 - Pressure Regulator with Air Filter (Airset) 3
Azbil Corporation
6 : Model Selection
Model Selection
specication
Optional
selection
KZ03 -I II -III, -IV
Model
Set
pressure
Piping
Pressure
gauge
KZ03
-1 Available supply pressure (Ps): Ps = 140 ± 4 kPa
-2 Available supply pressure (Ps): Ps ≤ 400 kPa (with pressure adjustment wheel)
-3
A Rc1/4 inch (internal)
B 1/4 inch NPT thread (internal)
-XX Without pressure gauge
-1A 2
-1B 4 1.5 < Ps ≤ 3.0 kgf/cm
-1N 6 3.0 < Ps ≤ 4.5 kgf/cm
-1C 10 4.5 < Ps ≤ 7.0 kgf/cm
-1D 30
-1E 60 22 < Ps ≤ 45 psi
-1P 100 45 < Ps ≤ 65psi
-1F 150 65 < Ps ≤ 100psi
-1G 2
-1H 4 1.5 < Ps ≤ 3.0 bar
-1Q 6 3.0 < Ps ≤ 4.5 bar
-1J 10 4.5 < Ps ≤ 7.0 bar
-1K 200
-1L 400 150 < Ps ≤ 300 kPa
-1R 600 300 < Ps ≤ 450 kPa
-1M 1000 450 < Ps ≤ 700 kPa
-1S 0.2
-1T 0.4 0.15 < Ps ≤ 0.3 MPa
-1U 0.6 0.3 < Ps ≤ 0.45 MPa
-1V 1 0.45 < Ps ≤ 0.7 MPa
-2A 2
-2B 4 1.5 < Ps ≤ 3.0 kgf/cm
-2N 6 3.0 < Ps ≤ 4.5 kgf/cm
-2C 10 4.5 < Ps ≤ 7.0 kgf/cm
-3A 2
-3B 4 1.5 < Ps ≤ 3.0 kgf/cm
-3N 6 3.0 < Ps ≤ 4.5 kgf/cm
-3C 10 4.5 < Ps ≤ 7.0 kgf/cm
-4K 200
-4L 400 150 < Ps ≤ 300 kPa
-4R 600 300 < Ps ≤ 450 kPa
-4M 1000 450 < Ps ≤ 700 kPa
-5S 0.2
-5T 0.4 0.15 < Ps ≤ 0.3 MPa
-5U 0.6 0.3 < Ps ≤ 0.45 MPa
-5V 1 0.45 < Ps ≤ 0.7 MPa
Selection condition, specication of pressure gauge, others
Available supply pressure (Ps): 400< Ps≤700 kPa (with pressure adjustment wheel)
1½ inch (40 mm) with pressure gauge (scale)
Primary maximum
scale & unit
kgf/cm
2
Secondly
unit
none
Recommended supply pressure
Ps ≤ 1.5 kgf/cm
2
2
2
2
Ps ≤ 22 psi
psi none
Ps ≤ 1.5 bar
bar none
Ps ≤ 150 kPa
kPa none
Ps ≤ 0.15 MPa
MPa none
2
2
2
2
2
2
2
2
kgf/cm
kgf/cm
Ps ≤ 1.5 kgf/cm
2
kPa
Ps ≤ 1.5 kgf/cm
2
MPa
Ps ≤ 150 kPa
kPa kgf/cm
2
Ps ≤ 0.15 MPa
MPa kgf/cm
2
4 KZ03 - Pressure Regulator with Air Filter (Airset)
Azbil Corporation
Mounting bracket
Mounting bracket
7 : Dimensions and Installation
Install this device vertically (with the drain plug facing down).
Air pressure output
PT1/4 or NPT1/4 internal screw
Air pressure input
1.2
9.9
1.2
PT1/4 or NPT1/4 internal screw
3.1
M4 internal screw
0.6
A-A current figure
40 pressure meter
Air pressure
output
1.7
3.3
183 max.
0.3
Air pressure input
2
3.6
1.7
1.1
0.8
0.4
Drain plug
M8 screw
M4 screw
*2
*3
KZ03 - Pressure Regulator with Air Filter (Airset) 5
1.7
2.6
*1
0.2
*1: Mounting bracket (parts no. 80330401-001) is not a standard accessory.
Please specify for its inclusion if needed.
*2: You must supply the screws(M8) to your panel.
*3: KZ03-2, KZ03-3 models come with the screws (M4) to the ltered pressure
regulator.
Azbil Corporation
r
8 : Applications
1. Supplying air to eld instruments and valve etc. (process control)
Pressure
regulator
Differential
pressure
transmitter
with air filter
Control
valve
2. Operate air pressure cylinder compressor, motor, etc.
Pressure
regulator
with air filte
Regulator
3. Supplying gas to gas analyzer
Gas supply unit
Regulator
Standard gas
Air to be measured
(29 to 102 psi)
Compressor
Reference air (REF.)
Eject air (EJEC.)
Check gas (CHK.)
Blow back air (B.B.)
6 KZ03 - Pressure Regulator with Air Filter (Airset)
Azbil Corporation
4. Discarding of chips, parts cleaning, air chucking
Compressor
5. Spray gun
Nozzle
Regulator
Regulator
Compressor
6. Other
Air driver, nut runner, wire wrapping, etc. of auto assembly machine, and train cardoor closer
KZ03 - Pressure Regulator with Air Filter (Airset) 7
Terms and Conditions
We would like to express our appreciation for your purchase and use of Azbil Corporation’s products.
You are required to acknowledge and agree upon the following terms and conditions for your purchase of Azbil Corporation’s products (system
products, field instruments, control valves, and control products), unless otherwise stated in any separate document, including, without limitation,
estimation sheets, written agreements, catalogs, specifications and instruction manuals.
1. Warranty period and warranty scope
1.1 Warranty period
Azbil Corporation’s products shall be warranted for one (1) year from the date of your purchase of the said products or the delivery of the
said products to a place designated by you.
1.2 Warranty scope
In the event that Azbil Corporation’s product has any failure attributable to azbil during the aforementioned warranty period, Azbil
Corporation shall, without charge, deliver a replacement for the said product to the place where you purchased, or repair the said
product and deliver it to the aforementioned place. Notwithstanding the foregoing, any failure falling under one of the following shall
not be covered under this warranty:
(1) Failure caused by your improper use of azbil product (noncompliance with conditions, environment of use, precautions, etc. set
forth in catalogs, specifications, instruction manuals, etc.);
(2) Failure caused for other reasons than Azbil Corporation’s product;
(3) Failure caused by any modification or repair made by any person other than Azbil Corporation or Azbil Corporation’s
subcontractors;
(4) Failure caused by your use of Azbil Corporation’s product in a manner not conforming to the intended usage of that product;
(5) Failure that the state-of-the-art at the time of Azbil Corporation’s shipment did not allow Azbil Corporation to predict; or
(6) Failure that arose from any reason not attributable to Azbil Corporation, including, without limitation, acts of God, disasters, and
actions taken by a third party.
Please note that the term “warranty” as used herein refers to equipment-only-warranty, and Azbil Corporation shall not be liable for any
damages, including direct, indirect, special, incidental or consequential damages in connection with or arising out of Azbil Corporation’s
products.
2. Ascertainment of suitability
You are required to ascertain the suitability of Azbil Corporation’s product in case of your use of the same with your machinery,
equipment, etc. (hereinafter referred to as “Equipment”) on your own responsibility, taking the following matters into consideration:
(1) Regulations and standards or laws that your Equipment is to comply with.
(2) Examples of application described in any documents provided by Azbil Corporation are for your reference purpose only, and
you are required to check the functions and safety of your Equipment prior to your use.
(3) Measures to be taken to secure the required level of the reliability and safety of your Equipment in your use
Although azbil is constantly making efforts to improve the quality and reliability of Azbil Corporation’s products, there exists
a possibility that parts and machinery may break down. You are required to provide your Equipment with safety design such
as fool-proof design,*
physical injuries, fires, significant damage, and so forth. Furthermore, fault avoidance,*3 fault tolerance,*4 or the like should be
incorporated so that the said Equipment can satisfy the level of reliability and safety required for your use.
*1. A design that is safe even if the user makes an error.
*2. A design that is safe even if the device fails.
*3. Avoidance of device failure by using highly reliable components, etc.
*4. The use of redundancy.
3. Precautions and restrictions on application
3.1 Restrictions on application
Please follow the table below for use in nuclear power or radiation-related equipment.
Nuclear power quality*5 required Nuclear power quality*5 not required
Within a radiation
controlled area*
Outside a radiation
controlled area*
Cannot be used (except for limit switches for
6
nuclear power*7)
Cannot be used (except for limit switches for
6
nuclear power*7)
1
and fail-safe design*2 (anti-flame propagation design, etc.), whereby preventing any occurrence of
Cannot be used (except for limit switches for
nuclear power*7)
Can be used
*5. Nuclear power quality: compliance with JEAG 4121 required
*6. Radiation controlled area: an area governed by the requirements of article 3 of “Rules on the Prevention of Harm from
Ionizing Radiation,” article 2 2 4 of “Regulations on Installation and Operation of Nuclear Reactors for Practical Power
Generation,” article 4 of “Determining the Quantity, etc., of Radiation-Emitting Isotopes,”etc.
*7. Limit switch for nuclear power: a limit switch designed, manufactured and sold according to IEEE 382 and JEAG 4121.
Any Azbil Corporation’s products shall not be used for/with medical equipment.
The products are for industrial use. Do not allow general consumers to install or use any Azbil Corporation’s product. However, azbil
products can be incorporated into products used by general consumers. If you intend to use a product for that purpose, please contact
one of our sales representatives.
3.2 Precautions on application
you are required to conduct a consultation with our sales representative and understand detail specifications, cautions for operation,
and so forth by reference to catalogs, specifications, instruction manual, etc. in case that you intend to use azbil product for any purposes
specified in (1) through (6) below. Moreover, you are required to provide your Equipment with fool-proof design, fail-safe design, antiflame propagation design, fault avoidance, fault tolerance, and other kinds of protection/safety circuit design on your own responsibility
to ensure reliability and safety, whereby preventing problems caused by failure or nonconformity.
(1) For use under such conditions or in such environments as not stated in technical documents, including catalogs, specification,
and instruction manuals
(2) For use of specific purposes, such as:
* Nuclear energy/radiation related facilities
[When used outside a radiation controlled area and where nuclear power quality is not required]
[When the limit switch for nuclear power is used]
* Machinery or equipment for space/sea bottom
* Transportation equipment
[Railway, aircraft, vessels, vehicle equipment, etc.]
* Antidisaster/crime-prevention equipment
* Burning appliances
* Electrothermal equipment
* Amusement facilities
* Facilities/applications associated directly with billing
(3) Supply systems such as electricity/gas/water supply systems, large-scale communication systems, and traffic/air traffic control
systems requiring high reliability
(4) Facilities that are to comply with regulations of governmental/public agencies or specific industries
(5) Machinery or equipment that may affect human lives, human bodies or properties
(6) Other machinery or equipment equivalent to those set forth in items (1) to (5) above which require high reliability and safety
4. Precautions against long-term use
Use of Azbil Corporation’s products, including switches, which contain electronic components, over a prolonged period may degrade
insulation or increase contact-resistance and may result in heat generation or any other similar problem causing such product or switch
to develop safety hazards such as smoking, ignition, and electrification. Although acceleration of the above situation varies depending
on the conditions or environment of use of the products, you are required not to use any Azbil Corporation’s products for a period
exceeding ten (10) years unless otherwise stated in specifications or instruction manuals.
5. Recommendation for renewal
Mechanical components, such as relays and switches, used for Azbil Corporation’s products will reach the end of their life due to wear by
repetitious open/close operations.
In addition, electronic components such as electrolytic capacitors will reach the end of their life due to aged deterioration based on
the conditions or environment in which such electronic components are used. Although acceleration of the above situation varies
depending on the conditions or environment of use, the number of open/close operations of relays, etc. as prescribed in specifications
or instruction manuals, or depending on the design margin of your machine or equipment, you are required to renew any Azbil
Corporation’s products every 5 to 10 years unless otherwise specified in specifications or instruction manuals. System products, field
instruments (sensors such as pressure/flow/level sensors, regulating valves, etc.) will reach the end of their life due to aged deterioration
of parts. For those parts that will reach the end of their life due to aged deterioration, recommended replacement cycles are prescribed.
You are required to replace parts based on such recommended replacement cycles.
6. Other precautions
Prior to your use of Azbil Corporation’s products, you are required to understand and comply with specifications (e.g., conditions and
environment of use), precautions, warnings/cautions/notices as set forth in the technical documents prepared for individual Azbil
Corporation’s products, such as catalogs, specifications, and instruction manuals to ensure the quality, reliability, and safety of those
products.
7. Changes to specifications
Please note that the descriptions contained in any documents provided by azbil are subject to change without notice for improvement
or for any other reason. For inquires or information on specifications as you may need to check, please contact our branch offices or
sales offices, or your local sales agents.
8. Discontinuance of the supply of products/parts
Please note that the production of any Azbil Corporation’s product may be discontinued without notice. After manufacturing is
discontinued, we may not be able to provide replacement products even within the warranty period.
For repairable products, we will, in principle, undertake repairs for five (5) years after the discontinuance of those products. In
some cases, however, we cannot undertake such repairs for reasons, such as the absence of repair parts. For system products, field
instruments, we may not be able to undertake parts replacement for similar reasons.
9. Scope of services
Prices of Azbil Corporation’s products do not include any charges for services such as engineer dispatch service. Accordingly, a separate
fee will be charged in any of the following cases:
(1) Installation, adjustment, guidance, and attendance at a test run
(2) Maintenance, inspection, adjustment, and repair
(3) Technical guidance and technical education
(4) Special test or special inspection of a product under the conditions specified by you
Please note that we cannot provide any services as set forth above in a nuclear energy controlled area (radiation controlled area) or at a
place where the level of exposure to radiation is equivalent to that in a nuclear energy controlled area.
AAS-511A-014-10
Document Number: CM2-KZV100-2001
Document Name: Pressure Regulator with Air Filter (Airset)
Model KZ03
User’s Manual
Date: 1st edition: Dec. 2003
4th edition: May 2019
Issued/Edited by: Azbil Corporation
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