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GB-2
Quick Guide
TABLE OF CONTENTS
1. GENERAL ......................................................................GB-2
2. MARKING AND INDICATIONS ...................................GB-3
3. SAFETY PRECAUTIONS .............................................GB-4
4. BEFORE USE ................................................................GB-5
5. INSTALLATION .............................................................GB-6
6. OPERATION ..................................................................GB-7
7. SERVICE ........................................................................GB-8
8. MAINTENANCE ............................................................GB-8
9. CONTACT US ...............................................................GB-8
APPENDIX
DOC-1 MARKING, INDICATIONS AND
RETIGHTENING TORQUE ..............................GB-10
DOC-2 MODEL DESCRIPTION ....................................GB-11
DOC-3 ATEX CODING DESCRIPTION ........................GB-11
EU DECLARATION OF CONFORMITY ...............................82
INDICATIONS
The precautions are clearly categorized and indicated as
“WARNING” or “CAUTION”. Make sure to observe them when
using the product.
WARNING
Indicates content that could result in death
or serious injury if not followed and handled
correctly.
CAUTION
Indicates content that is expected to cause
personal injury and property damage if not
followed and handled correctly.
SYMBOLS
In every chapter in this document, the following icons provide
advice on what to wear when performing the described
actions.
Wear a protective face mask
Wear protective safety gloves
Wear protective clothing
Wear safety helmets
Wear hearing protection
Wear eye protection
Wear safety shoes
DESCRIPTION OF PARTS
Diaphragm Pump
A. Centre Body
B. Inlet / Discharge
Port
C. Ball / Flat Valve
D. Out Chamber
E. Manifold
F. Diaphragm
Pulsation
Dampener
G. Air Chamber
H. Inlet / Discharge
Port
J. Liquid Chamber
K. Diaphragm
PRINCIPLE OF PUMP AND DAMPENER
Diaphragm Pump
There are two diaphragms fixed to the
centre rod, one at each end. When
compressed air is supplied to the right
side air chamber, the centre rod moves
to the right, the fluid in the out chamber
is pushed out, and at the same time
fluid is sucked into the out chamber on
the other side. When the centre rod is
moved full-stroke to the right side, the
air switch valve is switched, compressed
air is distributed to the left side air chamber, and the centre
rod moves to the left. The fluid in the left side out chamber
is pushed out, and at the same time fluid is sucked into right
side out chamber. Through repetition of this operation, fluid is
repeatedly taken in and discharged out.
E
C
F
B
D
A
B
C
C
D
J
F
K
H
H
G
A
E
B
1. GENERAL
For correct use of the YAMADA Diaphragm Pump and
Dampener (hereinafter called Product(s)), make sure to read
this document before installation and operation.
After reading, keep it in a place where it can be easily
referenced. This document must be stored in a dry and safe
location.
This document describes how to safely install, operate and
service this product to avoid injury and property damage.
Operation and Maintenance Manuals must be also stored and
referred to together with this document. It is the responsibility
of the purchaser to provide these documents to the operator
of this product.
Manuals can be found on the YAMADA website
https://www.yamada-europe.com/downloads
PURPOSE OF USE
Diaphragm Pump DP/NDP/G series (hereinafter called
Pump(s)) is a positive displacement pump that reciprocates
a diaphragm to transfer fluids through a unique switching
mechanism that uses compressed air.
Pulsation Dampener AD series (hereinafter called
Dampener(s)) reduces fluid pulsation that is caused by pump
operation and obtains stable discharge.
INTENDED USERS
Installation, operation, and inspection of this product should
be performed by a qualified person who can safely perform
these tasks according to the laws, regulations and codes of
the country where the product is located.