FR2079797A5 - Valves for buried conduits - insulated with epoxide tar mixtures - Google Patents

Valves for buried conduits - insulated with epoxide tar mixtures

Info

Publication number
FR2079797A5
FR2079797A5 FR7005090A FR7005090A FR2079797A5 FR 2079797 A5 FR2079797 A5 FR 2079797A5 FR 7005090 A FR7005090 A FR 7005090A FR 7005090 A FR7005090 A FR 7005090A FR 2079797 A5 FR2079797 A5 FR 2079797A5
Authority
FR
France
Prior art keywords
control shaft
tar
valves
embedded
epoxide
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
FR7005090A
Other languages
French (fr)
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.)
MARAIS USINE MODERNE
Original Assignee
MARAIS USINE MODERNE
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 MARAIS USINE MODERNE filed Critical MARAIS USINE MODERNE
Priority to FR7005090A priority Critical patent/FR2079797A5/en
Application granted granted Critical
Publication of FR2079797A5 publication Critical patent/FR2079797A5/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
    • F16K27/006—Construction of housing; Use of materials therefor of hydrants

Abstract

In a valve to be buried, protected from corrosion by an electrical and chemical insulating layer and consisting of a valve body, a remote control shaft, and pipe joints, the valve body and part of the pipe joints are embedded in a mass of insulating water-resistant material which is itself protected at the base and on the walls by an adhesive envelope and the remote control shaft is embedded in flexible water-resistant mastic contained within an enclosure. The insulating water-resistant material may be of tar or pitch or a blend of tar with epoxide resin. Glass fibre reinforced resins may also be used. For the adhesive envelope a material such as tarred paper coated with Al is useful. The control shaft may be enclosed in a plastic tube or two tubes sliding within one another or by an accordeon sleeve of PTFE. The treatment gives satisfactory protection against corrosion for valves used in underground conduits.
FR7005090A 1970-02-12 1970-02-12 Valves for buried conduits - insulated with epoxide tar mixtures Expired FR2079797A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7005090A FR2079797A5 (en) 1970-02-12 1970-02-12 Valves for buried conduits - insulated with epoxide tar mixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7005090A FR2079797A5 (en) 1970-02-12 1970-02-12 Valves for buried conduits - insulated with epoxide tar mixtures

Publications (1)

Publication Number Publication Date
FR2079797A5 true FR2079797A5 (en) 1971-11-12

Family

ID=9050564

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7005090A Expired FR2079797A5 (en) 1970-02-12 1970-02-12 Valves for buried conduits - insulated with epoxide tar mixtures

Country Status (1)

Country Link
FR (1) FR2079797A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698760A1 (en) * 1994-08-27 1996-02-28 Mittelmann Armaturen GmbH + Co. KG Electrical sectionning point for accoutrements
CN109027359A (en) * 2018-08-16 2018-12-18 安徽信息工程学院 Underground valve protective device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698760A1 (en) * 1994-08-27 1996-02-28 Mittelmann Armaturen GmbH + Co. KG Electrical sectionning point for accoutrements
CN109027359A (en) * 2018-08-16 2018-12-18 安徽信息工程学院 Underground valve protective device

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Legal Events

Date Code Title Description
EM Correction of a material error concerning inscription in the national patent register
ST Notification of lapse