cashco 6A00 User manual

INSTALLATION, OPERATION AND MAINTENANCE MANUAL (IOM) IOM-6A00 IIA1/IIA
03-16
SECTION I
I. DESCRIPTION AND APPLICATION
As autonomous safety systems for intended use in hazardous areas, the listed types comply with the
requirements of the European Regulations 94/9/EC (ATEX95) and the harmonized standard for flame
arrestors EN ISO 16852.
This document applies to the following Types according to the Charts 1-3. The limit values of the maximum
operating pressure P0,the maximum operating temperature T0and the maximum distance to the ignition
source LUmust be kept!
Model 6A00
Inline Deflagration Flame Arrestor
Ex- Gr. Pipe size Type P0
[kPa(abs.)]
T0
[oC]
LU
[m]
EC-type
examination
certificate
IIA1
DN20 (3/4”) 6A0B1 110 60 1.00
IBExU13ATEX2122 X
DN25 (1”) 6A0C1 110 60 1.25
DN32 (1-1/4”) 6A0K1 110 60 1.60
DN40 (1-1/2”) 6A0U1 110 60 2.00
DN50 (2”) 6A0V1 110 60 2.50
DN65 (2-1/2”) 6A131 110 60 3.25
DN80 (3”) 6A1B1 110 60 4.00
DN100 (4”) 6A1K1 110 60 5.00
DN125 (5”) 6A1T1 110 60 6.25
DN150 (6”) 6A1U1 110 60 7.50
Ex- Gr. Pipe size Type P0
[kPa(abs.)]
T0
[oC]
LU
[m]
EC-type
examination
certificate
IIA1
DN20 (3/4”) 6A0B6 160 60 1.00
IBExU13ATEX2148 X
DN25 (1”) 6A0C6 160 60 1.25
DN32 (1-1/4”) 6A0K6 160 60 1.60
DN40 (1-1/2”) 6A0U6 160 60 2.00
DN50 (2”) 6A0V6 160 60 2.50
DN65 (2-1/2”) 6A136 160 60 3.25
DN80 (3”) 6A1B6 160 60 4.00
DN100 (4”) 6A1K6 160 60 5.00
DN125 (5”) 6A1T6 160 60 6.25
DN150 (6”) 6A1U6 160 60 7.50
DN200 (8”) 6A226 160 60 10.0
DN250 (10”) 6A2A6 160 60 12.5
DN300 (12”) 6A2H6 160 60 15.0
Chart 1: Types of explosion group IIA1 (MESG > 1.14 mm) protect against deflagration and endurance burning.
Chart 2: Types of explosion group IIA1 (MESG >1.14 mm) protect against deflagration and short time burning,
maximum time of stablized burning = 1minute.
ISO Registered Company

2IOM-6A00
Ex- Gr. Pipe size Type P0
[kPa(abs.)]
T0
[oC]
LU
[m]
EC-type
examination
certificate
IIA1
DN20 (3/4”) 6A3Y6 160 60 1.00
IBExU13ATEX2123 X
DN25 (1”) 6A3Z6 160 60 1.25
DN32 (1-1/4”) 6A462 120 60 1.60
DN40 (1-1/2”) 6A4E2 120 60 2.00
DN50 (2”) 6A4F2 120 60 2.50
DN65 (2-1/2”) 6A4P2 120 60 3.25
DN80 (3”) 6A4Y2 120 60 4.00
DN100 (4”) 6A562 120 60 5.00
DN125 (5”) 6A5D2 120 60 6.25
DN150 (6”) 6A5E2 120 60 7.50
DN200 (8”) 6A5N2 120 60 10.0
DN250 (10”) 6A5X2 120 60 12.5
DN300 (12”) 6A642 120 60 15.0
Chart 3: Types of explosion group IIA1 (MESG > 0.9 mm) protect against deflagration and short time burning,
maximum time of stablized burning is 1 minute.
The suitability for the application in gas/air mixtures and in vapor/air mixtures of inflammable liquids of the
explosion group IIA1 and IIA, has been confirmed by the successful testing at IBExU in Freiberg (stated
location No. 0637) according to article 9 of the Regulation 94/9/EG with the respective EC-type examination certificate.
Under atmospheric conditions (pressure: 80 to110 kPa(abs.), temperature: -20 to +60oC), the flame arrestors according to
the Charts 1-3 are suitable for protection against deflagration.
In case of a stabilized burning situation not limited by time and an operating pressure (P0) ≤110 kPa(abs.), the flame
arrestors according to Chart 1 are protected against endurance burning. Attention! The protection against endurance
burning refers exclusively to the existence of pure hydrocarbons. Any application extended to other chemicals requires
additional testing for these specific chemicals.
In case of a stabilized burning situation not limited by time and an operating pressure (P0) >110 kPa(abs.),
the installation of at least one integrated temperature sensor on the unprotected side of the flame arrestor
in connection with activating an emergency function (e.g. interrupting or inerting an gas mixture) with
exceeding the operating temperature of ≥20K is required. The maximum acceptable time of stabilized burning is 1 minute.
The appropriate valid application limits are documented at delivery referring to the relevant EC-type
examination certificate in the respective inspection certificate according to EN10204. The CE marking of the flame arrester,
documents the compliance with the safety and health requirements stated in the regulation 94/9/EC “Devices and Safety
Systems in Hazardous Areas” by the respective declaration of compliance.
The flame arrestors shall only be used when their material is resistant to mechanical and/or chemical
influences or corrosion under respective operating conditions so that the explosion prevention and
protection are not set aside. This is especially applicable to the crimped metal ribbon of the flame arrestors whose safety
against flame propagation may be put at risk by corrosion.

3
IOM-6A00
SECTION II
II. SAFETY INSTRUCTIONS
The marking of the flame arrestor is carried out according to EN ISO 16852 respective their application.
Each flame arrestor is marked with a nameplate and a warning sign. The nameplate as shown in Figure 1
contains the following information:
Figure 1
Figure 4
Figure 3
Figure 2
The marking with the warning notice (Figure. 3) is only given for flame arrestors which are classified as
protected against short burning “b” or endurance burning “c”. The marking “protected side” (Figure. 4) is only
given for flame arresters functioning only to one side.
1. Name and addrress of the manufacturer.
2. Type designation.
3. Number of the EC-type examination certificate.
4. Serial number / year of manufacture.
5. Pipe size.
6. Marking hazardous area “G” for gas and vapor.
7. Explosion group.
8. Standard for flame arrester.
9. CE-marking with details of the named location.
1. “Warning” with the supplement “Installation and Application Limits according to ISO16852”.
2. Marking according to ISO16853: DEF.
3. Explosion group EX-G: according to Charts 1-3.
4. Maximum operating temperature and maximum operating pressure according to Charts 1-3.
5. Ratio LU/D (maximum distance to ignition source / connection-Ø of the flame arrestor).
6. Classification of burn rating a, b or c.
7. Burn time tBT (information only in connection with flammability classification b): 1 minute.
The warning sign as shown in Figure 2 contains the following information:

4IOM-6A00
SECTION III
III. TRANSPORTATION AND STORAGE
The flame arrestor shall be packed carefully in order to prevent damages or impurity during the transport
or storage.
SECTION IV
IV. INSTALLATION AND ASSEMBLY
Basically, the installation and assembly of the flame arrestor is carried out considering the respective application
limits and regulations for the scope, especially the appropriate instruction for accident prevention by the customer.
The installation starts by removing the plug connection/flange cover at the inlet and outlet of the flame arrestor.
The threads respectively and facing of the flanges shall be checked for damages, foreign material or dirt. The
flame arrestor may be installed horizontally or vertically . A tensionless fitting shall be guaranteed. Additionally, the
flame arrestor is not to be used as a load bearing device. If the flame arrestor is marked with a sticker “Protected
side”, this side has to be installed opposing the potential ignition source. With bidirectional flame arrestors, position
consideration of the potential ignition source is not required.
For inline flame arrestors the pipe size on the protected side shall not be smaller than the pipe size on the unprotected
side. For inline flame arrestors the pipe size on the unprotected side shall not be bigger than the connection size of
the flame arrestor. The distance (LU) between the potential ignition source and the deflagration inline flame arrestor
shall not exceed the data given in the Charts 1-3.
If the flame arrestor is marked as “Protected against endurance burning” (BC: a), it must not be insulated or encased.
With a marking “Protected against short burning” (BC: b) at least one screw plug including the used seal ring has to
be removed after assembling the flame arrestor. It shall be replaced by the included resistance thermometer (PT100)
+ seal ring. If stabilized burning is possible on both sides, at least one temperature sensing device shall be installed
on each side. The installation guidelines by the manufacturer of the resistance thermometer and requirements of
compliance shall be fulfilled. Then the installed temperature sensing device or devices will have to be integrated into
the complete system in order to activate an emergency function. The circuit must permit a clearing of the ominous
state within 50% of the burn time stated on the warning sign. Other brans of resistance thermometers may be used
if their measurement features are identical with the measurement features of the resistance thermometers used in
testing, and if the electrical explosion protection meets the respective application conditions of the flame arrestor.
In order to guarantee that no gap to the atmosphere has developed a leakage test should be carried out
before initial operation. Attention! Do Not exceed the test pressures stated in the inspection certificate
(EN10204).

5
IOM-6A00
SECTION V
V. MAINTENANCE
Attention! Maintenance shall only be carried out by instructed qualified staff! All parts of the Maintenance Kit A
(See Section VI) must be kept at hand.
As operational conditions do fluctuate, there is no temporal maintenance interval suggested.
We recommend the operational state of the flame arrestor be checked every 6 month. Not only the external housing
of the flame arrestor but also the crimped metal ribbons shall be checked for buildup of impurities, corrosion and
deformation. The function of the resistance thermometer, if present, should also be checked periodically.
Bolts / nuts shall be tightened to the torque values as listed below.
Should there be an explosion without or with stabilized burning at the flame arrestor, the flame arrestor must
be removed and checked by an instructed qualified staff member. Depending on the explosion or degree of
combustion, exchange of the crimped metal ribbon and the other spare parts may be sufficient to rebuild and re-
install. However, when considering the year of manufacture, replacement with a new flame arrestor may often
be the cheaper way. Flame arrestors with resistance thermometers shall be inspected to check the functioning
of the resistance thermometer after every maintenance / cleaning. The reinstallation into the complete system is
carried out according to Section IV.
Only use Cashco manufactured parts when it is necessary to replace single component parts.
Item
No. Mat.
Torque [Nm]
DN20-DN32
(3/4”-1-1/4”)
DN40/DN50
(1-1/2”/2”)
DN65/DN80
(2-1/2”/3”)
DN100
(4”)
DN125/DN150
(5”/6”)
DN200
(8”)
DN250
(10”)
DN300
(12”)
6, 7 CS 27 54 93 230 465 800
SST 25 45 80 185 400 680
8 SST 12 12 25 45 185 400 680
CS - Carbon Steel, SST = Stainless Steel
WARNING
SYSTEM UNDER PRESSURE. Prior to performing
any maintenance, isolate the regulator from the
system and relieve all pressure. Failure to do so
could result in personal injury.
For planned maintenance and cleaning, the flame arrestor can be easily dismantled. Rotate threaded bolt nuts (7)
counter clockwise and remove. Separate the two housings and remove the element (3).
For minimum residue buildup - the flame arrestor element is to be blown out with compressed air or superheated
steam opposite the normal operating flow direction.
For major residue buildup on the crimped metal ribbons, the flame arrestor element may be rinsed with a cleaning
compound compatible to the application fluid and in accordance with owner’s procedures.
Mechanical damages to the beading must be prevented! If the crimped metal ribbon within the element has been
damaged mechanically or chemically (corrosion), or if more than 20% of the cross-section area is plugged after
cleaning, replace the element (3). The element must be completely dry before reinstalling it between the housing
covers. Install new round ring(s) (5) each time the flame arrestor is dismantled. Insert threaded bolts (6) through
the two housing covers and with a alternating, crossing pattern secure nuts (7) finger tight. Use a torque wrench
and complete the tightening per the value as listed below. Finally, recheck the torque value of the center bolt / nut
(8) per the value as listed below.
Maintenance procedures hereinafter are based upon
removal of the unit from the pipeline where installed.

6IOM-6A00
SECTION VI
VI. INFORMATION FOR ORDERING SPARE PARTS
For ordering spare parts, the 18-digit serial number on the nameplate must be identified. Specify your
demand for spare parts by means of the item number and the maintenance instruction (Section V).
Contact your local Cashco sales representative and state the serial number and the item number. Then
the sales representative can quote a price for each of the required parts.
Item
No. Description Maintenance Kit A
1 Housing 1
2 Housing 2
3 Crimped Metal Ribbon X
4 Star
5 Round Ring X
6 Bolts
8 Center Bolt & Nut
9 Resistance Thermometer
10 Threaded Plug X
11 Seal Ring X
Item
No. Description Maintenance Kit A
1 Housing 1
2 Housing 2
3 Flame Arrester Element X
5 Round Ring X
6,7 Bolts & Nuts
8 Center Bolt
9 Resistance Thermometer
10 Threaded Plug X
11 Seal Ring X
Item Nos. for Figure 5.1 and 5.2
Figure 5.1 - Standard Threaded Connections
Item Nos. for Figure 6

7
IOM-6A00
Figure 5.2 - Standard Flanged Connections
Figure 6 - Standard Flanged Connections with Cage

Cashco, Inc.
P.O. Box 6
Ellsworth, KS 67439-0006
PH [phone]
Fax. # [phone]
www.cashco.com
email: [email protected]
Printed in U.S.A. 6A00-IOM
Cashco do Brasil, Ltda.
Al.Venus, 340
Indaiatuba - Sao Paulo, Brazil
PH [phone]
Fax. No.
www.cashco.com
email: [email protected]
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right
to modify or improve the designs or specifications of such product at any time without notice.
Cashco, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any
Cashco, Inc. product remains solely with the purchaser.
Cashco GmbH
Handwerkerstrasse 15
15366 Hoppegarten, Germany
PH [phone]
Fax. No. [phone]
www.cashco.com
email: [email protected]