Butterfly valve of inspectable type

Details Butterfly valve of inspectable type Butterfly valve of inspectable type

1989-06-05

1990-02-20

Fox, John

Valves and valve actuation

Rotary valves

Butterfly

251367, 1374542, F16K 122

Patent

active

049019791

ABSTRACT:
The valve of the present invention comprises a tubular body (1) the central ortion (6) of which defines a shutoff chamber (7) which is accessible via an inspection trap (15). Within this chamber (7) there is housed a removable annular pre-body (8) provided with two radial boreholes (9, 10) serving for the rotary mounting of the shaft (11) of the butterfly (12). Sealing means which cooperate with the body (1), the pre-body (8) and the butterfly (12) make it possible to assure the upstream/downstream tightness of the valve. The inspection trap (15) is closed by a cap (28) provided with a passage within which there is rotatably mounted a drive shaft (35) which is coupled to the shaft (11). This structure permits greater ease of access to the inner parts of the valve, a decrease in volume and weight, and greater ease in manufacture.

REFERENCES:
patent: 2750955 (1950-06-01), Bredtscheider
patent: 3250291 (1966-05-01), Ray
patent: 3260502 (1966-07-01), Plumer
patent: 4194749 (1980-03-01), Bonofous
patent: 4593916 (1986-06-01), Faulke et al.

Affiliated with

Also associated with

Rating

Butterfly valve of inspectable type does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Butterfly valve of inspectable type, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Butterfly valve of inspectable type will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1610905