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GB579008A - Improvements in and relating to valves - Google Patents

Improvements in and relating to valves

Info

Publication number
GB579008A
GB579008A GB637644A GB637644A GB579008A GB 579008 A GB579008 A GB 579008A GB 637644 A GB637644 A GB 637644A GB 637644 A GB637644 A GB 637644A GB 579008 A GB579008 A GB 579008A
Authority
GB
United Kingdom
Prior art keywords
metal
matrix
plug
nickel
seat
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.)
Expired
Application number
GB637644A
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.)
MERCO NORDSTROM VALVE CO
Original Assignee
MERCO NORDSTROM VALVE CO
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 MERCO NORDSTROM VALVE CO filed Critical MERCO NORDSTROM VALVE CO
Priority to GB637644A priority Critical patent/GB579008A/en
Publication of GB579008A publication Critical patent/GB579008A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/062—Construction of housing; Use of materials therefor of taps or cocks with conical plugs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physical Vapour Deposition (AREA)
  • Lift Valve (AREA)

Abstract

579,008. Rotary plug valves. TRIGGS, W. W. (Merco Nordstrom Valve Co.). April 5, 1944, No. 6376. [Class 135] [Also in Groups II and XXXIV] To prevent or reduce the seizing tendency between the sliding surfaces of a rotary plug valve composed of a base metal such as a carbon or stainless steel, or nickel, the surface of either the plug or its seat, or both, is coated with fine chromium boride crystals distributed in a matrix of metal having seizing characteristics. As shown in the Figure, both the plug member 14 and its seating 12 have such coatings 67, 69 and also intermediate coatings 66, 68 of a ductile metal to provide a bond between the base metal and the chromium boride matrix. The metal for the matrix and the intermediate coating may be stainless steel, nickel or the alloy known under the Registered Trade mark as " Monel" metal. The matrix is preferably sweated on to the surface of the plug or seat from a rod by means of a welding torch.
GB637644A 1944-04-05 1944-04-05 Improvements in and relating to valves Expired GB579008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB637644A GB579008A (en) 1944-04-05 1944-04-05 Improvements in and relating to valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB637644A GB579008A (en) 1944-04-05 1944-04-05 Improvements in and relating to valves

Publications (1)

Publication Number Publication Date
GB579008A true GB579008A (en) 1946-07-19

Family

ID=9813370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB637644A Expired GB579008A (en) 1944-04-05 1944-04-05 Improvements in and relating to valves

Country Status (1)

Country Link
GB (1) GB579008A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1164780B (en) * 1955-08-03 1964-03-05 Rockwell Mfg Co Cock with a conical chick pushed into its seat by the medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1164780B (en) * 1955-08-03 1964-03-05 Rockwell Mfg Co Cock with a conical chick pushed into its seat by the medium

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