JPS55141339A - Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fit - Google Patents

Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fit

Info

Publication number
JPS55141339A
JPS55141339A JP5012179A JP5012179A JPS55141339A JP S55141339 A JPS55141339 A JP S55141339A JP 5012179 A JP5012179 A JP 5012179A JP 5012179 A JP5012179 A JP 5012179A JP S55141339 A JPS55141339 A JP S55141339A
Authority
JP
Japan
Prior art keywords
valve seat
valve
mounting hole
box
screwed
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP5012179A
Other languages
Japanese (ja)
Inventor
Yoshiro Kaneda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YAMATO VALVE KOGYO KK
Original Assignee
YAMATO VALVE KOGYO KK
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 YAMATO VALVE KOGYO KK filed Critical YAMATO VALVE KOGYO KK
Priority to JP5012179A priority Critical patent/JPS55141339A/en
Publication of JPS55141339A publication Critical patent/JPS55141339A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lift Valve (AREA)
  • Sliding Valves (AREA)

Abstract

PURPOSE: To achieve the simplification of work and the reduction in the man hour by cooling a valve seat having a desired shrinkage allowance and interference to reduce the smae to the size at which it can be inserted or screwed into a valve seat mounting hole then tightly fitting this valve seat into the mounting hole of the valve box or valve body by causing the expansion restorage of the valve seat.
CONSTITUTION: A valve seat 1 composed of blank of bronze or the like is so worked as to have a desired shrinkage allowance and interference and is so worked as to permit its insertion or screwing into a valve seat mounting hole 4. Next, the valve seat 1 is cooled preferably to about -70°C so that it is shrank to the size at which it can be inserted or screwed into the mounting hole 4. Thence, this valve seat 1 is inserted or screwed into the valve seat mounting hole 4 of the valve box 2 or valve body 3. The valve seat 1 mounted expands as it restores ordinary temperature and the outside diameter of the valve seat restores the original size and therefore the fitting part 1a of the valve seat 1 tightly fits into the mounting hole 4 owing to its desired interference, and the contact part 1b tightly fits to the contact surface 2b of the valve box 2 or the contact surface 3b of the valve body 3.
COPYRIGHT: (C)1980,JPO&Japio
JP5012179A 1979-04-23 1979-04-23 Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fit Pending JPS55141339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5012179A JPS55141339A (en) 1979-04-23 1979-04-23 Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5012179A JPS55141339A (en) 1979-04-23 1979-04-23 Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fit

Publications (1)

Publication Number Publication Date
JPS55141339A true JPS55141339A (en) 1980-11-05

Family

ID=12850281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5012179A Pending JPS55141339A (en) 1979-04-23 1979-04-23 Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fit

Country Status (1)

Country Link
JP (1) JPS55141339A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104476104A (en) * 2014-11-17 2015-04-01 南通龙源电站阀门有限公司 Ball valve seat heat sleeve connecting process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104476104A (en) * 2014-11-17 2015-04-01 南通龙源电站阀门有限公司 Ball valve seat heat sleeve connecting process

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