Quality Philosophy

KITZ Group aims to insatiably improve customer satisfaction by offering products / services with overwelming reliability.

The trustworthy brand KITZ has been established by working on the cutting-edge issues of the times, with “Do it True (Integrity and Truth)” as the first of the Conduct Guidelines as the basic philosophy. Since its founding, the company has been manufacturing products based on integrated manufacturing from raw materials, and acquiring ISO9001 certification for the first time at a Japanese company. Recent advances in digital technology, known as the second-to-second advancement, have brought significant changes to KITZ’s quality-assurance system, and have been embodied as proprietary testing equipment and process control systems that dramatically improve the reliability of our products/services.
We will continue to evolve our group-wide quality assurance system and provide products and services that satisfy our customers with an overwhelming sense of trust, without remaining at the present level.

Executive Officer, General Manager of CS Management Division
Yoriyuki Koyama

Quality philosophy

KITZ Group Quality Policy

At KITZ Group, we share our quality philosophy. This is essential for KITZ, which places a high priority on quality, to earn the confidence and satisfaction of customers. By always being conscious of this, we will enhance the brand power of the entire group and provide products and services that exceed customer expectations. We hope to be a company that will continue to develop 10 years, 30 years into the future.

Acquiring KITZ Group certification

KITZ became the first Japanese company to acquire ISO9001 in November 1989. Currently, our domestic plants have acquired JIS product certification, Pressure Equipment Directive (PED) certification, and API certification. These certifications support the quality of KITZ’s high-quality products. Overseas production bases and cooperating companies have also acquired various certifications, and we are responding to a wide range of customer needs.

Certification List

Manufacturing Plant Certification Certifying Authority
KITZ Corporation
Nagasaka Plant
ISO9001 LRQA Limited
High Pressure Gas Safety Act
Mministerial approval as self inspection manufacturer
KHK
JWWA Inspection Manufacturer JWWA
JWWA Quality Certification Centre certified and registered Manufacturer JWWA
PED/CE Marking Products Manufacturing Plant LRQA Limited
PER/UKCA Marking Products Manufacturing Plant LRQA Limited
AD2000-Merkblatt W0 TÜV SÜD
AD2000-Merkblatt HP0 TÜV SÜD
KITZ Corporation
Ina Plant
ISO9001 LRQA Limited
High Pressure Gas Safety Act
Mministerial approval as self inspection manufacturer
KHK
JWWA Inspection Manufacturer JWWA
JWWA Quality Certification Centre certified and registered Manufacturer JWWA
API Specification 6D / Monogram marking Products Manufacturing Plant API
PED/CE Marking Products Manufacturing Plant LRQA Limited
PER/UKCA Marking Products Manufacturing Plant LRQA Limited
JIS Mark Certification
(JIS B 2031 Gray cast iron Valves)
JWWA
AD2000-Merkblatt HP0 TÜV SÜD
Approval of fire protection Equipment FESC
KITZ Corporation
Chino Plant
ISO9001 LRQA Limited
JWWA Inspection Manufacturer JWWA
JWWA Quality Certification Centre certified and registered Manufacturer JWWA
JIS Mark Certification
(JIS B 2011 Bronze Valves)
JWWA
Approval of fire protection Equipment FESC
Certification of fire protection equipment and systems JFEII
Manufacturing Plant Certification
Shimizu Alloy Mfg. Co., Ltd. ISO9001
JWWA Inspection Manufacturer
JIS Mark Certification
(JIS B 2062 Sluice valves for ordinary water piping)
KITZ SCT Corporation ISO9001
High Pressure Gas Safety Act
Mministerial approval as self inspection manufacturer
KITZ Micro Filter Corporation ISO9001
JWWA Quality Certification Centre certified and registered Manufacturer
KITZ (Thailand) Ltd. ISO9001
JIS Mark Certification
(JIS B 2011 Bronze Valves)
JWWA Quality Certification Centre certified and registered Manufacturer
PED/CE Marking Products Manufacturing Plant
PER/UKCA Marking Products Manufacturing Plant
CSA
(Canadian Standard Association)
FM
(Factory Mutual)
UL
(Underwriters Laboratories)
Australian Standard
NSF
KITZ Corporation of Taiwan ISO9001
PED/CE Marking Products Manufacturing Plant
PER/UKCA Marking Products Manufacturing Plant
UL
(Underwriters Laboratories)
AD2000-Merkblatt HP0
KITZ Corporation of Kunshan ISO9001
AD2000-Merkblatt W0
TS Certificate
KITZ Corporation of Jiangsu Kunshan ISO9001
AD2000-Merkblatt HP0
TS Certificate
KITZ Corporation of Lianyungang ISO9001
AD2000-Merkblatt W0
KITZ Corporation of Europe, S.A. ISO9001
API Specification 6D
PED/CE Marking Products Manufacturing Plant
PER/UKCA Marking Products Manufacturing Plant
AD2000-Merkblatt W0
AD2000-Merkblatt HP0
Perrin GmbH ISO9001
PED/CE Marking Products Manufacturing Plant
AD2000-Merkblatt HP0

As of December 1, 2022

Global Support System

Global Support System

KITZ Group has established a global support system to provide uniform services worldwide. In addition to Japan, we have customer support departments in Singapore, Thailand, the U.S. and China. When quality defects arise after sales, we basically respond and resolve them locally. In addition, by working with KITZ certified valve maintenance companies, we are able to respond accurately and quickly to local needs. The quality information received from the marketplace is consolidated and analyzed at KITZ Head Office to improve quality.

Achieving high quality through an integrated production system

KITZ is based on integrated production from raw materials, and produces cast materials, forged materials, and Brass rods in-house to achieve high-quality products. Although these processes require high-level technological expertise and cost, they are the most critical processes for valve, so KITZ is committed to its own production. Our experience and technologies accumulated over many years enable us to produce high quality and various materials. In addition, since all processes related to valve manufacturing are carried out in-house, when problems occur, we can quickly identify and improve the causes of the problems.

Realization of high quality through integrated production system 1
Realization of high quality through integrated production system 2

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