KR101017778B1 - airtight test apparatus of valve element - Google Patents

airtight test apparatus of valve element Download PDF

Info

Publication number
KR101017778B1
KR101017778B1 KR1020080129936A KR20080129936A KR101017778B1 KR 101017778 B1 KR101017778 B1 KR 101017778B1 KR 1020080129936 A KR1020080129936 A KR 1020080129936A KR 20080129936 A KR20080129936 A KR 20080129936A KR 101017778 B1 KR101017778 B1 KR 101017778B1
Authority
KR
South Korea
Prior art keywords
block
seat
disk
valve assembly
test
Prior art date
Application number
KR1020080129936A
Other languages
Korean (ko)
Other versions
KR20100071279A (en
Inventor
류현종
김문재
김봉근
조영배
김종호
Original Assignee
주식회사 한국가스기술공사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 한국가스기술공사 filed Critical 주식회사 한국가스기술공사
Priority to KR1020080129936A priority Critical patent/KR101017778B1/en
Publication of KR20100071279A publication Critical patent/KR20100071279A/en
Application granted granted Critical
Publication of KR101017778B1 publication Critical patent/KR101017778B1/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/224—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/003—Machine valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S251/00—Valves and valve actuation

Abstract

본 발명은 밸브 조립체중 일부 요소만 분리하여 가스누설상태를 검사할 수 있도록 한 밸브요소의 기밀시험장치에 관한 것이다.The present invention relates to an airtight test apparatus for a valve element that allows only a part of the valve assembly to be separated to inspect a gas leakage condition.

본 발명의 밸브요소의 기밀시험장치는 시험가스가 주입되는 주입구(11)가 형성된 베이스블럭(10)과; 시트면(2)과 상기 디스크면(1)이 상호 밀착되도록 시트블럭(20) 상면에 디스크블럭(30)이 안착되며, 디스크면(11)이 그 하부에 노출되도록 디스크블럭(30)이 결합되는 가이드블럭(60)과; 가이드블럭(60)을 가압시키는 유압실린더(70);를 구비한다.The gas tight test apparatus of the valve element of the present invention includes a base block 10 having an injection hole 11 through which test gas is injected; The disk block 30 is seated on the upper surface of the seat block 20 so that the seat surface 2 and the disk surface 1 closely contact each other, and the disk block 30 is coupled to expose the lower surface of the disk surface 11. A guide block 60; And a hydraulic cylinder 70 for pressing the guide block 60.

이와 같은 장치는 밸브 조립체의 조립 전 쉽고 간편하게 기밀 상태를 미리 알 수 있게 한다. 따라서 기존의 4단계(분해-연마(lapping)-조립-기밀시험) 기밀시험 공정을 간소화하였고 정확한 손상부위 확인을 통한 연마실시 횟수 감소로 정비시간 단축 및 밸브수명 연장 등 많은 비용 절감 및 기밀시험의 신뢰성을 향상시킨다.Such a device makes it easy and convenient to know the airtight state before assembling the valve assembly. Therefore, the existing four-stage (decomposition-lapping-assembly-confidence test) process has been simplified, and the cost reduction and maintenance time and the valve life are greatly reduced by reducing the number of polishing operations through the accurate check of the damage area. Improve reliability

밸브, 디스크, 시트, 기밀 Valve, disc, seat, airtight

Description

밸브요소의 기밀시험장치{airtight test apparatus of valve element}Airtight test apparatus of valve element

본 발명은 밸브 조립체중 일부 요소만 분리하여 가스누설상태를 검사할 수 있도록 한 밸브요소의 기밀시험장치에 관한 것이다.The present invention relates to an airtight test apparatus for a valve element that allows only a part of the valve assembly to be separated to inspect a gas leakage condition.

일반적으로 밸브조립체는 유로를 개폐시키거나 정압상태로 유체를 공급시킬 수 있도록 하는 기능을 가지며, 판형상의 디스크(disc)와 기밀을 유지시키는 시트(seat)를 구비한다.In general, the valve assembly has a function of opening and closing the flow path or supplying fluid at a constant pressure, and includes a disk-shaped disc and a seat that maintains airtightness.

이러한 밸브조립체의 정상적인 작동을 위해서는 유체의 누설상태를 점검하고, 이를 보수 후 유로라인 상에 설치하게 된다.For normal operation of such a valve assembly, the leakage state of the fluid is checked and installed on the flow path after repair.

통상적인 기밀시험 방법은 밸브조립체의 각 부품을 조립한 후 질소로 가압시키고, 일정지점의 방출구에 튜브를 연결하여서 튜브단부를 물속에 침수시킨 후, 튜브 단부를 통하여 물방울이 발생되는지의 여부에 따라 밸브 조립체의 불량여부를 판별하고 있다.Conventional airtight test method is to assemble each part of the valve assembly, pressurized with nitrogen, and the tube end is submerged in water by connecting the tube to the outlet of a certain point, and whether water droplets are generated through the tube end. Therefore, it is determined whether the valve assembly is defective.

그러나 이러한 방법은 튜브 단부를 통하여 물방울이 발생하게 되어 불량판정이 나더라도 밸브 조립체의 어느 부분에서 누설이 발생되는지를 알 수 없게 된다.However, in this method, water droplets are generated through the end of the tube so that even if a bad decision is made, it is impossible to know in which part of the valve assembly a leak occurs.

이에 따라서 밸브 조립체를 분해한 후 각 부분을 연마하여 재조립하고, 상기 와 같은 방법을 반복하게 된다.Accordingly, after disassembling the valve assembly, the parts are polished and reassembled, and the above method is repeated.

이러한 기밀시험방법은 반복적인 작업에 따른 작업시간의 과다소요와 부품 연마에 따른 밸브 수명을 단축시키는 문제점이 있다. This hermetic test method has problems of excessive work time due to repetitive work and shortening of valve life due to parts polishing.

본 발명은 상기와 같은 문제점을 해결하기 위하여 창출된 것으로서, 간단하게 가스의 누출부분을 찾아낼 수 있으며 종래에서와 같이 분해/조립에 따른 번거로움을 해소할 수 있도록 한 밸브조립체의 기밀시험장치를 제공하는 데 그 목적이 있다.The present invention has been made to solve the above problems, it is possible to easily find the leaking part of the gas and to solve the trouble of disassembly / assembly as in the conventional airtight test apparatus of the valve assembly The purpose is to provide.

상기 목적을 달성하는 본 발명은 디스크면을 가지는 디스크블럭과 환형의 시트면을 가지는 시트블럭을 구비하는 밸브조립체의 기밀시험장치에 있어서,
중공형의 내부공간(24)이 형성되고, 상단부에 상기 시트면(2)이 형성되며 하단부에 플랜지(21)가 형성되는 시트블럭(20)과;
하면에 상기 시트면(2)과 상호 밀착되는 디스크면(1)이 형성되어 상기 시트블럭(20)에 안착되는 디스크블럭(30)과;
시험가스가 주입되는 주입구(11)가 형성되고, 상기 주입구(11)와 내부공간(24)이 연통되도록 상기 시트블럭(20)이 안착되는 베이스블럭(10)과;
상기 디스크면(1)이 그 하부에 노출되도록 상기 디스크블럭(30)이 결합되는 가이드블럭(60)과;
상기 가이드블럭(60)의 상측에 이격되게 배치되고, 상,하 승강 동작되는 로드를 가지며, 상기 로드의 하강동작시 상기 가이드블럭(60)와 접촉되면서 하측으로 가압시키는 유압실린더(70);를 구비하여서,
상기 주입구(11)를 통하여 시험가스를 주입하고 상기 디스면(1)과 시트면(2) 사이의 경계부(5)에 검지액을 살포하여 가스의 누출부분을 검출할 수 있도록 된 것을 특징으로 한다.In the present invention to achieve the above object, in the airtight test apparatus of the valve assembly having a disk block having a disk surface and a seat block having an annular seat surface,
A seat block (20) having a hollow inner space (24) formed therein, the seat surface (2) formed at an upper end thereof, and a flange (21) formed at a lower end thereof;
A disk block 30 formed on a lower surface of the disk surface 1 in close contact with the sheet surface 2 and seated on the seat block 20;
A base block (10) on which the injection hole (11) into which the test gas is injected is formed and on which the seat block (20) is seated such that the injection hole (11) and the internal space (24) communicate;
A guide block (60) to which the disc block (30) is coupled so that the disc surface (1) is exposed at the bottom thereof;
A hydraulic cylinder (70) disposed spaced apart from the upper side of the guide block (60), having a rod configured to move up and down, and pressed downward while contacting the guide block (60) during the lowering operation of the rod; Equipped,
The test gas is injected through the injection hole 11 and the detection liquid is sprayed onto the boundary portion 5 between the dis face 1 and the seat face 2 so as to detect leaks of the gas. .

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

삭제delete

또한, 상기 베이스블럭과 상기 가이드블럭을 상호 결합시키는 볼트와 너트가 더 구비된 것을 특징으로한다.In addition, the base block and the guide block is characterized in that the bolt and nut are further provided with each other.

또한, 상기 플랜지에 안착되는 환형의 고정판과, 상기 볼트에 결합되어 상기 고정판을 상기 베이스블럭에 가압고정시키는 보조너트를 더 구비한 것을 특징으로 한다.In addition, it characterized in that it further comprises an annular fixing plate seated on the flange, and an auxiliary nut coupled to the bolt for pressing and fixing the fixing plate to the base block.

이와 같은 장치는 밸브 조립체의 조립 전 쉽고 간편하게 기밀 상태를 미리 알 수 있게 한다. 따라서 기존의 4단계(분해-연마(lapping)-조립-기밀시험) 기밀시험 공정을 간소화하였고 정확한 손상부위 확인을 통한 연마실시 횟수 감소로 정비시간 단축 및 밸브수명 연장 등 많은 비용 절감 및 기밀시험의 신뢰성을 향상시킨다.Such a device makes it easy and convenient to know the airtight state before assembling the valve assembly. Therefore, the existing four-stage (decomposition-lapping-assembly-confidence test) process has been simplified, and the cost reduction and maintenance time and the valve life are greatly reduced by reducing the number of polishing operations through the accurate check of the damage area. Improve reliability

도 1을 참조하면, 본 발명 실시예의 밸브 조립체의 기밀시험장치는 기밀상태가 요구되는 밸브 요소 즉, 디스크면(1)을 가지는 디스크블럭(30)과 환형의 시트면(2)을 가지는 시트블럭(20)을 분리하여서, 간편하게 기밀시험을 할 수 있게 하며, 특히 누설부분을 용이하게 찾아내어 보수 또는 교환할 수 있도록 한다.Referring to Fig. 1, the airtight test apparatus of the valve assembly according to the embodiment of the present invention is a valve element requiring airtightness, i.e., a disc block 30 having a disc face 1 and a seat block having an annular seat face 2; (20) is to be separated so that it can be easily tested for airtightness, and especially to find and repair leaks easily.

상기 시트블럭(20)은 내부공간(24)을 형성하며 중공형으로 형성되고 상단부에 상기 시트면(2)이 형성되며 하단부에는 플랜지(21)가 형성되고, 상기 디스크블 럭(30)은 하면에 디스크면(1)이 형성된 구조를 가진다.The seat block 20 forms an inner space 24 and is formed in a hollow shape, the seat surface 2 is formed at an upper end thereof, a flange 21 is formed at a lower end thereof, and the disc block 30 has a lower surface. Has a structure in which the disk surface 1 is formed.

이 장치는 시험가스(예컨대, 질소가스)가 주입되는 주입구(11)가 형성되고 이 주입구(11)와 상기 내부공간(24)이 연통되도록 상기 시트블럭(20)이 안착되는 베이스블럭(10)과; 상기 시트면(2)과 상기 디스크면(1)이 상호 밀착되도록 상기 시트블럭(20) 상면에 상기 디스크블럭(30)이 안착되며, 상기 디스크면(1)이 그 하부에 노출되도록 상기 디스크블럭(30)이 결합되는 가이드블럭(60)과; 상기 가이드블럭(60)을 가압시키는 유압실린더(70);를 구비한다.The apparatus includes a base block 10 on which the seat block 20 is seated so that an injection hole 11 into which a test gas (eg, nitrogen gas) is injected is formed and the injection hole 11 and the internal space 24 communicate with each other. and; The disk block 30 is seated on an upper surface of the seat block 20 so that the seat surface 2 and the disk surface 1 closely contact each other, and the disk block is exposed so that the disk surface 1 is exposed thereunder. A guide block 60 to which 30 is coupled; And a hydraulic cylinder 70 for pressing the guide block 60.

상기 베이스블럭(10)과 상기 가이드블럭(60)은 볼트(51)(52)와 너트(53)(54)에 의해서 상호 결합되어 이탈방지되도록 한다.The base block 10 and the guide block 60 are coupled to each other by bolts 51 and 52 and nuts 53 and 54 so as to prevent their separation.

또한, 상기 플랜지(21)에 안착되는 환형의 고정판(40)과, 상기 볼트(51)(52)에 결합되어 상기 고정판(40)을 상기 베이스블럭(10)에 가압고정시키는 보조너트(41)를 구비한다.In addition, an annular fixing plate 40 seated on the flange 21 and an auxiliary nut 41 coupled to the bolts 51 and 52 to pressurize and fix the fixing plate 40 to the base block 10. It is provided.

또한, 가이드블럭(60)의 상면에는 가압판(61)이 마련되어서 상기 유압실린더(70)의 로드가 직접 접하여 가압되도록 하였다. 이 경우 가이드블럭(60)의 손상을 방지시킨다.In addition, a pressure plate 61 is provided on the upper surface of the guide block 60 so that the rod of the hydraulic cylinder 70 is directly contacted and pressed. In this case, damage to the guide block 60 is prevented.

미설명부호 15는 시트블럭(20)과 베이스블럭(10) 사이를 실링하는 오링이다.Reference numeral 15 is an O-ring sealing between the seat block 20 and the base block 10.

이와 같은 장치는 베이스블럭(10), 고정판(40), 상기 가이드블럭(60) 및 시트블럭(20)을 볼트(51)(52)와 너트(53)(54)(41)에 의해서 상호 결합시킨 후, 유압실린더(70)를 가동하여 가이드블럭(60)을 하방향으로 가압시킴으로써 디스크면(1)과 시트면(2)를 밀착시킨 후, 상기 주입구(11)를 통하여 시험가스를 주입하고 상기 디스크면(1)와 시트면(2) 사이의 경계부(5)에 검지액을 살포하여 가스의 누출부분을 검출할 수 있도록 한다.Such a device is coupled to the base block 10, the fixed plate 40, the guide block 60 and the seat block 20 by bolts 51, 52 and nuts 53, 54, 41. After the hydraulic cylinder 70 is operated to press the guide block 60 downward to bring the disk surface 1 and the seat surface 2 into close contact with each other, the test gas is injected through the inlet 11. The detection liquid is sprayed onto the boundary 5 between the disk surface 1 and the seat surface 2 so as to detect leaks of the gas.

검지액 방울이 발생되는 가스누출부분은 연마하거나 교환한다.Grind or replace the gas leak where the detection liquid drops.

이와 같은 장치는 밸브 조립체의 조립 전 쉽고 간편하게 기밀 상태를 미리 알 수 있게 한다. 따라서 기존의 4단계(분해-연마(lapping)-조립-기밀시험) 기밀시험 공정을 간소화하였고 정확한 손상부위 확인을 통한 연마실시 횟수 감소로 정비시간 단축 및 밸브수명 연장 등 많은 비용 절감 및 기밀시험의 신뢰성을 향상시킨다.Such a device makes it easy and convenient to know the airtight state before assembling the valve assembly. Therefore, the existing four-stage (decomposition-lapping-assembly-confidence test) process has been simplified, and the cost reduction and maintenance time and the valve life are greatly reduced by reducing the number of polishing operations through the accurate check of the damage area. Improve reliability

도 1은 본 발명 실시예의 장치에 디스크와 시트가 장착된 상태의 단면도이다.1 is a cross-sectional view of a state in which a disk and a sheet are mounted in the apparatus of the embodiment of the present invention.

Claims (4)

디스크면을 가지는 디스크블럭과 환형의 시트면을 가지는 시트블럭을 구비하는 밸브조립체의 기밀시험장치에 있어서,In the airtight test apparatus for a valve assembly having a disk block having a disk surface and a seat block having an annular seat surface, 중공형의 내부공간(24)이 형성되고, 상단부에 상기 시트면(2)이 형성되며 하단부에 플랜지(21)가 형성되는 시트블럭(20)과;A seat block (20) having a hollow inner space (24) formed therein, the seat surface (2) formed at an upper end thereof, and a flange (21) formed at a lower end thereof; 하면에 상기 시트면(2)과 상호 밀착되는 디스크면(1)이 형성되어 상기 시트블럭(20)에 안착되는 디스크블럭(30)과;A disk block 30 formed on a lower surface of the disk surface 1 in close contact with the sheet surface 2 and seated on the seat block 20; 시험가스가 주입되는 주입구(11)가 형성되고, 상기 주입구(11)와 내부공간(24)이 연통되도록 상기 시트블럭(20)이 안착되는 베이스블럭(10)과;A base block (10) on which the injection hole (11) into which the test gas is injected is formed and on which the seat block (20) is seated such that the injection hole (11) and the internal space (24) communicate; 상기 디스크면(1)이 그 하부에 노출되도록 상기 디스크블럭(30)이 결합되는 가이드블럭(60)과;A guide block (60) to which the disc block (30) is coupled so that the disc surface (1) is exposed at the bottom thereof; 상기 가이드블럭(60)의 상측에 이격되게 배치되고, 상,하 승강 동작되는 로드를 가지며, 상기 로드의 하강동작시 상기 가이드블럭(60)와 접촉되면서 하측으로 가압시키는 유압실린더(70);를 구비하여서,A hydraulic cylinder (70) disposed spaced apart from the upper side of the guide block (60), having a rod configured to move up and down, and pressed downward while contacting the guide block (60) during the lowering operation of the rod; Equipped, 상기 주입구(11)를 통하여 시험가스를 주입하고 상기 디스크면(1)과 시트면(2) 사이의 경계부(5)에 검지액을 살포하여 가스의 누출부분을 검출할 수 있도록 된 것을 특징으로 하는 밸브조립체의 기밀시험장치.The test gas is injected through the injection hole 11 and the detection liquid is sprayed onto the boundary portion 5 between the disk surface 1 and the seat surface 2 so as to detect a leaking part of the gas. Leakage test device for valve assembly. 제 1 항에 있어서, 상기 베이스블럭(10)과 상기 가이드블럭(60)을 상호 결합 시키는 볼트(51)(52)와 너트(53)(54)가 더 구비된 것을 특징으로 하는 밸브조립체의 기밀시험장치.The airtight of the valve assembly according to claim 1, further comprising bolts (51) (52) and nuts (53) (54) for coupling the base block (10) and the guide block (60) to each other. Test equipment. 제 2 항에 있어서, 상기 플랜지(21)에 안착되는 고정판(40)과, 상기 볼트(51)(52)에 결합되어 상기 고정판(40)을 상기 베이스블럭(10)에 가압고정시키는 보조너트(41)를 더 구비한 것을 특징으로 하는 밸브조립체의 기밀시험장치.The auxiliary nut of claim 2, wherein the fixing plate 40 is seated on the flange 21 and the bolts 51 and 52 are attached to the base plate 10 to fix the fixing plate 40 to the base block 10. 41. A gas tight test apparatus for a valve assembly, further comprising: 제 1 항 내지 제 3 항중 어느 한 항에 있어서, 상기 가이드블럭(60)의 상면에 상기 유압실린더(70)가 접촉되어 가압되는 가압판(61)이 더 구비된 것을 특징으로 하는 밸브조립체의 기밀시험장치.The airtightness test of the valve assembly according to any one of claims 1 to 3, further comprising a pressure plate (61) contacting and pressing the hydraulic cylinder (70) on the upper surface of the guide block (60). Device.
KR1020080129936A 2008-12-19 2008-12-19 airtight test apparatus of valve element KR101017778B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080129936A KR101017778B1 (en) 2008-12-19 2008-12-19 airtight test apparatus of valve element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080129936A KR101017778B1 (en) 2008-12-19 2008-12-19 airtight test apparatus of valve element

Publications (2)

Publication Number Publication Date
KR20100071279A KR20100071279A (en) 2010-06-29
KR101017778B1 true KR101017778B1 (en) 2011-03-02

Family

ID=42368798

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080129936A KR101017778B1 (en) 2008-12-19 2008-12-19 airtight test apparatus of valve element

Country Status (1)

Country Link
KR (1) KR101017778B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101679830B1 (en) * 2015-01-30 2016-11-25 (주)코리아웰헤드 Hydro test device of the valve body for conveying the fluid

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101297058B1 (en) * 2013-05-23 2013-08-14 주식회사 비엠티 A test device for a valve pressure
CN104989703B (en) * 2015-07-20 2017-11-24 北京工业大学 A kind of numerically control grinder Hydraulic System Reliability experimental rig
KR200488366Y1 (en) 2016-12-20 2019-01-18 한전케이피에스 주식회사 Movable test device for safety release valve
CN107727331B (en) * 2017-11-08 2023-11-24 宁波宇华实业股份有限公司 Ball valve rod airtight performance test equipment
KR102025170B1 (en) * 2018-12-31 2019-09-25 한전케이피에스 주식회사 Air operated valve trim part leak test device and method there of
KR102654148B1 (en) * 2021-08-18 2024-04-03 (주)세아메카닉스 Air leak inspection device for casting parts for electric vehicles
KR102655356B1 (en) * 2023-12-06 2024-04-05 한국가스안전공사 Accelerated life tester for hydrogen metal pipes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0694564A (en) * 1992-09-10 1994-04-05 Keihin Seiki Mfg Co Ltd Apparatus and method for detecting airtightness of work
JPH0854384A (en) * 1994-08-10 1996-02-27 Nippon Rutsubo Kk Method for inspecting air-permeable refract container
KR100332659B1 (en) 1999-12-27 2002-04-15 김형국 Seat sealing testor for satety and pressure prevention valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0694564A (en) * 1992-09-10 1994-04-05 Keihin Seiki Mfg Co Ltd Apparatus and method for detecting airtightness of work
JPH0854384A (en) * 1994-08-10 1996-02-27 Nippon Rutsubo Kk Method for inspecting air-permeable refract container
KR100332659B1 (en) 1999-12-27 2002-04-15 김형국 Seat sealing testor for satety and pressure prevention valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101679830B1 (en) * 2015-01-30 2016-11-25 (주)코리아웰헤드 Hydro test device of the valve body for conveying the fluid

Also Published As

Publication number Publication date
KR20100071279A (en) 2010-06-29

Similar Documents

Publication Publication Date Title
KR101017778B1 (en) airtight test apparatus of valve element
KR101951540B1 (en) Valve leakage test equipment
KR101863254B1 (en) Apparatus for detecting leakage of gas meter
KR100849705B1 (en) Apparatus and method for leak detection of fuel filter assembly of vehicle
CN109738129B (en) Method for detecting air tightness of conduit assembly
TWI565897B (en) External seal structure of vacuum valve
CN103906917A (en) Method of testing gas injector valve and system for exercising the method
KR100963047B1 (en) Sealing test device for swing check valve on reactor coolant pressure boundary
CN103180598A (en) Device for the media-tight connection of two high-pressure components
KR102076456B1 (en) Device for Testing Leakage of Air Compressors Intake Valve And Exhaust Valve
CN114061851B (en) Self-sealing type metal sealing ring performance test system and method
CN201259457Y (en) Tightness test device
KR20180066557A (en) Leak Testor for various size of The Pump Mechanical Seal Assembly
JP2683658B2 (en) Leakage inspection device and leakage inspection method
CN106248306A (en) Cylinder cover for diesel engine water-pressure sealed testing stand
JPH09166514A (en) Operation inspection device for opening/closing means
JP4103278B2 (en) Leak inspection device
KR20210001549U (en) Test apparatus of pump mechanical seal
CN110987311B (en) Air tightness testing device suitable for stop valve
CN106706233B (en) Hole-by-hole air tightness inspection tool for multiple blind holes in part
KR102581934B1 (en) Leak test device for automobile compressor housing
CN203350000U (en) Pressure test device of guide vane body
CN220542356U (en) Helium detection apparatus
CN220251282U (en) Forging tightness detection device
CN219757626U (en) Frock is used to aviation piston engine cylinder block leak test device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20140217

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20150130

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20160201

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20180201

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20190211

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20200203

Year of fee payment: 10