KHE is dedicated to producing equipments which are compliance with the applicable condes and standards and with customer's specifications. The personnel in KHE with the responsibility for assuring quality have technical knowledge to perform their function and the organizational freedom to do their job without the pressures of production.
 We have successfully performed the works in accordance with internationally recognized standards such as ASME, API, HEI, AWS, JIS, TEMA, DIN and others

 Management Commitment

  The CEO shall provide evidence of the commitment to implement Quality Management System
   in KHE and continually improve its effectiveness by

      a. Communicating to the KHE organization the importance of meeting customer's
          requirements as well as statutory and regulatory ones.
       b. Establishing the quality policy.
       c. Ensuring that quality objectives are established.
       d. Conducting management reviews.
       e. Ensuring the availability of resources

 QA/QC Standards Systems

KHE is dedicated to maintain and improve quality to provide safe and reliable products to custo
mersin compliance with the applicable codes, standards, and customer's specifications.
We have successfully performed the works in accordance with internationally recognized stand
ards such as ASME, API, AWS, JIS, and others.

 ISO9001  Certificate Authorization

KHE has established and been applied the ISO 9001:2000 Quality Management System Standards for Design, Manufacture Installation and Servicing of pressure vessels, heat exchanger, louvers and welded steel structures from August, 2001 and it was also proved by audits in accordance with the requirements of KSA

 ASME  Certificate Authorization
KHE has been qualified the authoritative seals of excellence in manufacturing of pressure vessels from june, 1995 by the American society of mechanical engineers(ASME). All of KHE’s products are bulit in accordance with the requirements of the ASME Boiler and pressure vessel code.

 Manufacture License of Special Equipment Authorization (China)
KHE had been audited and approved to manufacture the Pressure Vessels by General Administration of Quality Supervision and Inspection & Quarantine of the People's Republic of China from April, 2005.

.
 Safety Quality License (SQL) Authorization
KHE's quality system was also proved by the audit in accordance with the requirement of SQL system by center of boiler and pressure vessel inspection & research(CBPVI), China in August, 1999.      
 Our QC/Fabrication skills are inherited from Mitsubishi Heavy Industries, Mihara Japan

 Quality Control Procedure

 Quality Assurance Program
   ASME U-Stamp
   ISO 9001 QA Program
   Chinese Safety & Quality Liscence

 Quality Control Procedure
    Material Inspection
      All materials shall be inspected to ensure that they are traceable to the Material Test Report       (MTR) and have no injurious defects such as crack, lamination and lack of thickness.

    Material Marking and Cutting Inspection
     All the plates, pipes and forgings used in the manufacture of pressure parts shall be      identified with the marking, and then materials shall be inspected for dimension before and      after cutting.
    Fit-Up Inspection

     Before any welding takes place, all weld bevels shall be examined using liquid penetrate for      edge defers and laminations, and shall be visually inspected internally and externally for      necks, dents, general damege, or other surface defects.
    Finning Inspection
     Visual and dimensional inspection shall be performed in 5 % of total tubes after finning.
    Visual Inspection for welded Joints
     All adjacent area on both sides of welded joint shall be checked to ensure wall thickness is      not reduced below minimum wall thickness shown on drawings.l
    Nondestructive Examination (NDE)
      Applicable NDE will be performed after PWHT according to job specification. There are       Liquid Penetrant Examination(PT) or Magnetic Particle Examination(MT), Radiograph       Examination(RT), and Ultrasonic Examination(UT)
    Header Box Final Inspection
      Dimension of shell and other main parts shall be checked in accordance with applicable       approved drawings at suitable stage during fabrication & after completion of construction
    PWHT & Hardness Inspection
     PWHT will be performed in accordance with written procedure.
    Tube Hole & Tube Expanding Inspection
      Every tube hole will be inspected whether it is free form defects such as burr, scratches       and checked by cylinder gage for the 10% of total holes. And groove of tube hole is also       visually checked. Tube Expanding inspection will be performed in accordance to written       procedure.
    Pressure Test

     Pressure test shall be performed at condition specified on the approved fabrication      drawings. All air coolers shall be hydrostatically tested.
    Inspection of Cleaning, Painting, and Shipping
     Surgace shall be free from mill scale, rust, welding slag, coatings, grease, oils, shop dirt,      slips, water, other foreign materials and weld spatter. And inspection of painting shall be      performed as job specificatins. Then, air coolers shall be shipped as required by the      approved fabrication drawings and shipping procedure.

Tensile Test

 Hardness Test

Borescope

Impact Test

NDE Test (MT)

NDE Test (UT)

Finning Inspection

Dimension Inspection

Hydrostatic Test

Expanding Inspection

Painting Inspection

  QA/QC Polocy Statement by the president of KHE

 
"The policy of Korea Heat Exchanger Ind. Co., Ltd.(KHE) is to fabricate and install pressure vessels in factories and at field sites controlled by the factories in conformance with all requirements of ASME Code Section VIII, Div.1 and contractual requirements.

KHE has established the quality control system to maintain and improve quality, and also to supply safe and reliable products to customers in compliance with the Code standards. This manual is a description of the quality control system. Some portions of this manual is a applied to a quality control system. Some portions of this manual can also be applied to a project with does not require the Code stamping whenever the customers specifically notify us.

No person in this organization will deviate from these quality standards set forth herein.

QC Manager has sufficient and well defined responsibility, authority and organizational freedom to identify quality control problems and to initiate, recommend and provide solutions. QC Manager stops works if further processing may result non-conformance with the applicable code and customer's specification.

In the event that any problems or differences in opinions cannot be resolved within the organization, they shall be brought to my attention for the final resolution. The resolution shall be within the limits of the Code and this manual"

Signed by the president of KHE

- QA / QC Manual
 Please refer to the following documents index

 Index of QC Manual

  TABLE OF CONTENTS
  POLOCY STATEMENT
  QC MANUAL REVISION CONTROL SHEET
  GLOSSARY
  ORGANIZATION
  AUTHORITY AND RESPOSIBILITY
  QUALITY CONTROL PROGRAM AND MANUAL CONTROL
  DRAWING, DESIGN CALCULATION AND SPECIFICATION CONTROL
  PROCUREMENT CONTROL
  MATERIAL CONTROL
  PROCESS CONTROL
  EXAMINATION & INSPECTION PROGRAM
  NON-CONFORMANCE CONTROL
  WELDING CONTROL
  NON DESTRUCTIVE EXAMINATION
  HEAT TREATMENT CONTROL
  CALIBRATION CONROL OF MEASURING AND TEST EQUIPMENT
  RECORD RETENTION
  AUTHORIZED INSPECTOR
  FIELD CONSTRUCTION 

 Index of QC Procedure

  DIMENSIONAL CHECK PROCEDURE
  HYDROSTATIC PRESSURE TEST PROCEDURE
  PNEUMATIC PRESSURE TEST PROCEDURE
  CALIBRATION CONTROL PROCEDURE
  INSPECTION AND TEST PROCEDURE (FOR AIR COOLED HEAT EXCHNAGER)
  INSPECTION AND TEST PROCEDURE (FOR SHELL & TUBE HEAT EXCHANGER)
  WELDING TEST SPECIFICATION
  WELDER / WELDING OPERATOR TEST SPECIFICATION
  DOCUMENT CONTROL PROCEDURE
  HEAT TREATMENT PROCEDURE (P.W.H.T.)
  HEAT TREATMENT PROCEDURE (NORMALIZING)
  DESIGN CONTROL PROCEDURE
  MOCK-UP PROCEDURE (FOR WELDED AND EXPANDED TUBE TO TUBESHEET JOINT)
  PACKING PROCEDURE
  RUN-IN TEST PROCEDURE OF AIR COOLED HEAT EXCHANGER
  PROCESS CONTROL PROCEDURE
  WELDING MATERIAL CONTROL PROCEDURE