IPC 7 English version F16K 13/00-F16K 51/02

F16K01300-F16K05102

SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F 16

ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F 16 K

VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING

13/

Other constructional types of cut-off apparatus (means for plugging pipes or hoses F16L 55/10); Arrangements for cutting-off [4]

13/

with both sealing faces shaped as small segments of a cylinder and the moving member pivotally mounted

13/

Arrangements for cutting-off [4]

13/

by means of liquid or granular medium [4]

Functional types

Note

Attention is drawn to Note (2) following the title of subclass G05D and also the subdivisions of that subclass, according to which pressure regulators and flow regulators, e.g. flow regulating valves with pressure compensator, even with the whole regulating system contained in a valve, operating with or without auxiliary power, are covered by groups G05D 16/00 or G05D 7/00, respectively. However, details of the valve parts, per se, are classified in the appropriate groups of this subclass. [2]

15/

Check valves (valves specially adapted for inflatable balls A63B 41/00)

15/

with guided rigid valve members

15/

with a hinged closure member

15/

shaped as balls

15/

with guided stems

15/

shaped as rings

15/

integral with, or rigidly fixed to, a common valve plate

15/

Springs for ring valves [3]

15/

with flexible valve members

15/

with tongue-shaped laminae

15/

with actuating mechanism; Combined check valves and actuated valves

15/

specially designed for inflatable bodies, e.g. tyres (connecting valves to inflatable elastic bodies B60C 29/00)

17/

Safety valves; Equalising valves (pressure relief devices for aerosol containers B65D 83/70)

17/

opening on surplus pressure on one side; closing on insufficient pressure on one side (check valves F16K 15/00)

17/

spring-loaded

17/

with special arrangements for adjusting the opening pressure

17/

with special arrangements for providing a large discharge passage

17/

with auxiliary valve for fluid operation of the main valve

17/

weight-loaded

17/

with fracturing member

17/

with fracturing diaphragm

17/

164

and remaining closed after return of the normal pressure

17/

168

combined with manually-controlled valves, e.g. a valve combined with a safety valve

17/

opening on surplus pressure on either side

17/

Equalising valves predominantly for tanks

17/

192

with closure member in the form of a movable liquid column

17/

194

weight-loaded

17/

196

spring-loaded

17/

Excess-flow valves (actuated in consequence of shock or similar extraneous influence F16K 17/36)

17/

actuated by the difference of pressure between two places in the flow line

17/

acting directly on the cutting-off member

17/

operating in either direction

17/

operating in one direction only

17/

spring-loaded

17/

acting on a servo-mechanism or on a catch-releasing mechanism

17/

in which the flow-energy of the flowing medium actuates the closing mechanism

17/

actuated in consequence of extraneous circumstances, e.g. shock, change of position

17/

of excessive temperature

17/

with fracturing member, e.g. fracturing diaphragm, fusible joint (valves with fracturing member opening on surplus pressure on one side F16K 17/14)

17/

Valves preventing penetration of air in the outlet of containers for liquids

21/

Fluid-delivery valves (specially adapted for aerosol containers B65D 83/44; for liquid handling B67D; for flushing devices for water-closets or the like E03D)

21/

providing a continuous small flow

21/

Self-closing valves, i.e. closing automatically after operation

21/

in which the closing movement, either retarded or not, starts immediately after opening

21/

with ball-shaped closing members

21/

with hydraulic brake cylinder acting on the closure member

21/

with hydraulically-operated opening means; with arrangements for pressure relief before opening

21/

with special means for preventing the self-closing

21/

closing after a predetermined quantity of fluid has been delivered (F16K 21/10 takes precedence)

21/

closed when a rising liquid reaches a predetermined level (float-actuated valves F16K 31/18)

21/

by means making use of air-suction through an opening closed by the rising liquid

23/

Valves for preventing drip from nozzles

24/

Devices, e.g. valves, for venting or aerating enclosures (equalising valves F16K 17/00; arrangement or mounting in pipes or pipe systems F16L 55/07; venting or aerating as an additional function of steam traps or like apparatus F16T; ventilation of rooms, vehicles, see the appropriate subclass, e.g. F24F) [2]

24/

the enclosure being itself a valve, tap, or cock [2]

24/

for venting only (F16K 24/02 takes precedence) [2]

24/

for aerating only (F16K 24/02 takes precedence) [2]

Details

Note

Details not provided for in the following groups are classified in the preceding groups.

25/

Details relating to contact between valve members and seats (movement of valve members other than for opening and closing F16K 29/00; sealing constructions, see the appropriate groups according to the type of valve)

25/

Arrangements using fluid issuing from valve members or seats

25/

Arrangements for preventing erosion, not otherwise provided for

27/

Construction of housings (methods for welding housings B23K); Use of materials therefor

27/

of lift valves (for reducing the flow resistance of screw-spindle lift-valves F16K 1/06)

27/

of sliding valves

27/

of taps or cocks

27/

of cutting-off parts of tanks, e.g. tank-cars [4]

27/

Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves

27/

Welded housings

27/

Covers for housings

29/

Arrangements for movement of valve members other than for opening or closing the valve, e.g. for grinding-in, for preventing sticking

29/

providing for continuous motion

31/

Operating means; Releasing devices

31/

electric; magnetic

31/

using a motor

31/

specially adapted for operating hand-operated valves or for combined motor and hand operation

31/

using a magnet

31/

using a permanent magnet

31/

with additional mechanism between armature and closure member

31/

with additional hand operating means [2]

31/

actuated by fluid (fluid-actuated check valves F16K 15/00; fluid-actuated safety valves F16K 17/00)

31/

122

the fluid acting on a piston (F16K 31/143, F16K 31/163, F16K 31/363, F16K 31/383 take precedence) [2]

31/

124

servo actuated [2]

31/

126

the fluid acting on a diaphragm, bellows, or the like (F16K 31/145, F16K 31/165, F16K 31/365, F16K 31/385 take precedence) [2]

31/

128

servo actuated [2]

31/

for mounting on, or in combination with, hand-actuated valves

31/

143

the fluid acting on a piston

31/

145

the fluid acting on a diaphragm

31/

with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member (with float F16K 31/18)

31/

163

the fluid acting on a piston

31/

165

the fluid acting on a diaphragm

31/

actuated by a float (floats F16K 33/00; float-actuated valves in steam-traps F16T 1/20, in boilers F22D 5/08)

31/

actuating a lift valve

31/

with the float rigidly connected to the valve

31/

with a transmission with parts linked together from a single float to a single valve

31/

with the valve guided for rectilinear movement and the float attached to a pivoted arm

31/

with two or more floats actuating one valve

31/

actuating a gate valve or sliding valve

31/

actuating a tap or cock

31/

acting on pilot valve controlling the cut-off apparatus

31/

in which fluid from the conduit is constantly supplied to the fluid motor

31/

363

the fluid acting on a piston (F16K 31/38 takes precedence)

31/

365

the fluid acting on a diaphragm

31/

in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side (F16K 31/40 takes precedence)

31/

383

the fluid acting on a piston

31/

385

the fluid acting on a diaphragm

31/

with electrically-actuated member in the discharge of the motor

31/

by means of electrically-actuated members in the supply or discharge conduits of the fluid motor (F16K 31/40 takes precedence)

31/

Mechanical actuating means

31/

for remote operation

31/

actuated by mechanical timing-device, e.g. with dash-pot (self-closing valves F16K 21/16)

31/

with screw-spindle

31/

with crank, eccentric, or cam

31/

524

with a cam

31/

528

with pin and slot

31/

with toothed gearing

31/

with pinion and rack

31/

without stable intermediate position, e.g. with snap action

31/

comprising a movable discharge-nozzle

31/

Handles

31/

Pedals or like operating members, e.g. actuated by knee or hip

31/

responsive to temperature variation (dependant on excessive temperature F16K 17/38; control of fire-fighting equipment A62C 37/00; devices for preventing bursting of water pipes by freezing E03B 7/10) [4]

31/

electrically or magnetically actuated, e.g. by magnets with variable magnetic characteristics [4]

31/

actuated by fluid pressure or volumetric variation in a confined chamber [4]

31/

mechanically actuated, e.g. by a bimetallic strip [4]

31/

Operating means or releasing devices specifically adapted to enhance the speed of valve response [4]

33/

Floats for actuation of valves or other apparatus

35/

Means to prevent accidental or unauthorised actuation

35/

to be locked or disconnected by means of a push or pull

35/

yieldingly resisting the actuation

35/

using a removable actuating or locking member, e.g. a key (F16K 35/10, F16K 35/12 take precedence)

35/

requiring setting according to a code, e.g. permutation locks

35/

with locking caps or locking bars

35/

with sealing wire

35/

interlocking two or more valves

35/

with locking member actuated by magnet

37/

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

39/

Devices for relieving the pressure on the sealing faces

39/

for lift valves

39/

for sliding valves

39/

for taps or cocks

41/

Spindle sealings

41/

with stuffing-box

41/

with at least one ring of rubber or like material between spindle and housing

41/

with at least one ring attached to both spindle and housing

41/

with at least one ring provided with axially-protruding peripheral closing-lip

41/

with diaphragm, e.g. shaped as bellows or tube

41/

with approximately flat diaphragm

41/

with conical flange on the spindle which co-operates with a conical surface in the housing

41/

with a flange on the spindle which rests on a sealing ring

41/

sealing only when the closure member is in the opened position

43/

Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose

47/

Means in valves for absorbing fluid energy (for pipes F16L 55/00)

47/

for preventing water-hammer or noise

47/

for decreasing pressure, the throttle being incorporated in the closure member

47/

with a throttle in the form of a helical channel

47/

for decreasing pressure and having a throttling member separate from the closure member

47/

in which the medium in one direction must flow through the throttling channel, and in the other direction may flow through a much wider channel parallel to the throttling channel

47/

the throttling channel being of helical form

47/

the throttling member being a perforated membrane

47/

the throttling member being a cone

49/

Means in or on valves for heating or cooling (for pipes F16L 53/00; thermal insulation in connection with pipes or pipe systems F16L 59/16)

51/

Other details not peculiar to particular types of valves or cut-off apparatus

51/

specially adapted for high-vacuum installations [2]

F16K - F16K 11/24