F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
ENGINEERING IN GENERAL
 F16
ENGINEERING ELEMENTS OR 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
 F16K 1/00 - 
F16K 13/00
Constructional types (check valves F16K 15/00)
 F16K 1/00 - 
F16K 13/00

Note(s)

An initial seal breaking or final sealing movement which is different from the opening or closing movement of the valve is not considered in determining the movement to be classified. [2]

 F16K 1/00
Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces (diaphragm valves F16K 7/00)
 F16K 1/02
·  with screw-spindle (F16K 1/12-F16K 1/28 take precedence; actuating mechanisms with screw-spindles F16K 31/50)
 F16K 1/04
·  ·  with a cut-off member rigid with the spindle, e.g. main valves
 F16K 1/06
·  ·  Special arrangements for improving the flow, e.g. special shape of passages or casings
 F16K 1/08
·  ·  ·  in which the spindle is perpendicular to the general direction of flow
 F16K 1/10
·  ·  ·  in which the spindle is inclined to the general direction of flow
 F16K 1/12
·  with streamlined valve member around which the fluid flows when the valve is opened
 F16K 1/14
·  with ball-shaped valve members (check valves F16K 15/04)
 F16K 1/16
·  with pivoted closure members
 F16K 1/18
·  ·  with pivoted discs or flaps
 F16K 1/20
·  ·  ·  with axis of rotation arranged externally of valve member
 F16K 1/22
·  ·  ·  with axis of rotation crossing the valve member, e.g. butterfly valves
 F16K 1/226
·  ·  ·  ·  Shaping or arrangement of the sealing
 F16K 1/228
·  ·  ·  ·  ·  Movable sealing bodies
 F16K 1/24
·  with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
 F16K 1/26
·  ·  Shape or arrangement of the sealing
 F16K 1/28
·  ·  ·  Movable sealing bodies
 F16K 1/30
·  specially adapted for pressure containers
 F16K 1/32
·  Details (details of more general applicability F16K 25/00-F16K 51/00)
 F16K 1/34
·  ·  Cutting-off parts, e.g. valve members, seats (F16K 1/06, F16K 1/12, F16K 1/14, F16K 1/26 take precedence)
 F16K 1/36
·  ·  ·  Valve members (for double-seat valves F16K 1/44)
 F16K 1/38
·  ·  ·  ·  of conical shape
 F16K 1/40
·  ·  ·  ·  of helical shape
 F16K 1/42
·  ·  ·  Valve seats (for double-seat valves F16K 1/44)
 F16K 1/44
·  ·  ·  Details of seats or valve members of double-seat valves
 F16K 1/46
·  ·  ·  Attachment of sealing rings
 F16K 1/48
·  ·  Attaching valve members to screw-spindles
 F16K 1/50
·  ·  Preventing rotation of valve members
 F16K 1/52
·  ·  Means for additional adjustment of the rate of flow
 F16K 1/54
·  ·  Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
 F16K 3/00
Gate valves or sliding valves, i.e. cutt-off apparatus with closing members having a sliding movement along the seat for opening and closing (F16K 5/00 takes precedence; in barrages or weirs E02B 8/04)
 F16K 3/02
·  with flat sealing faces; Packings therefor
 F16K 3/03
·  ·  with a closure member in the form of an iris-diaphragm
 F16K 3/04
·  ·  with pivoted closure members
 F16K 3/06
·  ·  ·  in the form of closure plates arranged between supply and discharge passages (F16K 3/10 takes precedence)
 F16K 3/08
·  ·  ·  ·  with circular closure plates rotatable around their centres
 F16K 3/10
·  ·  ·  with special arrangements for separating the sealing faces or for pressing them together
 F16K 3/12
·  ·  with wedge-shaped arrangements of sealing faces
 F16K 3/14
·  ·  ·  with special arrangements for separating the sealing faces or for pressing them together
 F16K 3/16
·  ·  with special arrangements for separating the sealing faces or for pressing them together (F16K 3/10, F16K 3/14 take precedence)
 F16K 3/18
·  ·  ·  by movement of the closure members
 F16K 3/20
·  ·  ·  by movement of the seats
 F16K 3/22
·  with sealing faces shaped as surfaces of solids of revolution (F16K 13/02 takes precedence; with resilient valve members F16K 3/28)
 F16K 3/24
·  ·  with cylindrical valve members
 F16K 3/26
·  ·  ·  with fluid passages in the valve member
 F16K 3/28
·  with resilient valve members
 F16K 3/30
·  Details
 F16K 3/312
·  ·  Line blinds
 F16K 3/314
·  ·  Forms or constructions of slides; Attachment of the slide to the spindle
 F16K 3/316
·  ·  Guiding of the slide
 F16K 3/32
·  ·  Means for additional adjustment of the rate of flow
 F16K 3/34
·  ·  Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
 F16K 3/36
·  ·  Features relating to lubrication
 F16K 5/00
Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary (taps of the lift-valve type F16K 1/00)
 F16K 5/02
·  with plugs having conical surfaces; Packings therefor
 F16K 5/04
·  with plugs having cylindrical surfaces; Packings therefor
 F16K 5/06
·  with plugs having spherical surfaces; Packings therefor
 F16K 5/08
·  Details
 F16K 5/10
·  ·  Means for additional adjustment of the rate of flow
 F16K 5/12
·  ·  Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
 F16K 5/14
·  ·  Special arrangements for separating the sealing faces or for pressing them together
 F16K 5/16
·  ·  ·  for plugs with conical surfaces
 F16K 5/18
·  ·  ·  for plugs with cylindrical surfaces
 F16K 5/20
·  ·  ·  for plugs with spherical surfaces
 F16K 5/22
·  ·  Features relating to lubrication
 F16K 7/00
Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage (means for plugging pipes or hoses F16L 55/10)
 F16K 7/02
·  with tubular diaphragm
 F16K 7/04
·  ·  constrictable by external radial force
 F16K 7/06
·  ·  ·  by means of a screw-spindle, cam, or other mechanical means
 F16K 7/07
·  ·  ·  by means of fluid pressure
 F16K 7/08
·  ·  constrictable by twisting
 F16K 7/10
·  with inflatable member
 F16K 7/12
·  with flat, dished, or bowl-shaped diaphragm
 F16K 7/14
·  ·  arranged to be deformed against a flat seat
 F16K 7/16
·  ·  ·  the diaphragm being mechanically actuated, e.g. by screw-spindle or cam
 F16K 7/17
·  ·  ·  the diaphragm being actuated by fluid pressure
 F16K 7/18
·  with diaphragm secured at one side only, e.g. to be laid on the seat by rolling action
 F16K 7/20
·  with a compressible solid closure member
 F16K 9/00
Arrangements for cutting-off by means of liquid or granular medium
 F16K 11/00
Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
 F16K 11/02
·  with all movable sealing faces moving as one unit
 F16K 11/04
·  ·  comprising only lift valves
 F16K 11/06
·  ·  comprising only sliding valves
 F16K 11/07
·  ·  ·  with cylindrical slides
 F16K 11/08
·  ·  comprising only taps or cocks
 F16K 11/083
·  ·  ·  with tapered plug  [2]
 F16K 11/085
·  ·  ·  with cylindrical plug  [2]
 F16K 11/087
·  ·  ·  with spherical plug  [2]
 F16K 11/10
·  with two or more closure members not moving as a unit
 F16K 11/12
·  ·  with one plug turning in another
 F16K 11/14
·  ·  operated by one actuating member, e.g. a handle (with one plug turning in another F16K 11/12)
 F16K 11/16
·  ·  ·  which only slides, or only turns, or only swings in one plane
 F16K 11/18
·  ·  ·  with separate operating movements for separate closure members
 F16K 11/20
·  ·  operated by separate actuating members (with one plug turning in another F16K 11/12)
 F16K 11/22
·  ·  ·  with an actuating member for each valve, e.g. interconnected to form multiple-way valves
 F16K 11/24
·  ·  ·  with an e ectromagnetically-operated valve, e.g. for washing machines
 F16K 13/00
Other constructional types of cut-off apparatus (means for plugging pipes or hoses F16L 55/10)
 F16K 13/02
·  with both sealing faces shaped as small segments of a cylinder and the moving member pivotally mounted
 F16K 13/04
·  with a breakable closure member
 F16K 13/06
·  ·  constructed to be ruptured by an explosion
 F16K 15/00 - 
F16K 24/00
Functional types
 F16K 15/00 - 
F16K 24/00

Note(s)

Attention is drawn to Note (1) and the subdivision of sub-class G05D according to which pressure regulators, even with the whole regulating system contained in a valve, operating with or without auxiliary power, are covered by G05D 16/00. Details of the valve parts per se are classified in the appropriate groups of sub-class F16K[2]

 F16K 15/00
Check valves (valves specially adapted for inflatable balls A63B 41/00)
 F16K 15/02
·  with guided rigid valve members
 F16K 15/03
·  ·  with a hinged closure member
 F16K 15/04
·  ·  shaped as balls
 F16K 15/06
·  ·  with guided stems
 F16K 15/08
·  ·  shaped as rings
 F16K 15/10
·  ·  ·  integral with, or rigidly fixed to, a common valve plate
 F16K 15/12
·  ·  ·  Springs for ring valves
 F16K 15/14
·  with flexible valve members
 F16K 15/16
·  ·  with tongue-shaped laminae
 F16K 15/18
·  with actuating mechanism; Combined check valves and actuated valves
 F16K 15/20
·  Specially designed for inflatable bodies, e.g. tyres (combinations of valves with inflatable bodies B60C)
 F16K 17/00
Safety valves; Equalising valves
 F16K 17/02
·  opening on surplus pressure on one side; closing on insufficient pressure on one side (check valves F16K 15/00)
 F16K 17/04
·  ·  spring-loaded
 F16K 17/06
·  ·  ·  with special arrangements for adjusting the opening pressure
 F16K 17/08
·  ·  ·  with special arrangements for providing a large discharge passage
 F16K 17/10
·  ·  ·  with auxiliary valve for fluid operation of the main valve
 F16K 17/12
·  ·  weight-loaded
 F16K 17/14
·  ·  with fracturing member
 F16K 17/16
·  ·  ·  with fracturing diaphragm
 F16K 17/164
·  ·  and remaining closed after return of the normal pressure
 F16K 17/168
·  ·  combined with manually-controlled valves, e.g. a valve combined with a safety valve
 F16K 17/18
·  opening on surplus pressure on either side
 F16K 17/19
·  ·  Equalising valves predominantly for tanks
 F16K 17/192
·  ·  ·  with closure member in the form of a movable liquid column
 F16K 17/194
·  ·  ·  weight-loaded
 F16K 17/196
·  ·  ·  spring-loaded
 F16K 17/20
·  Excess-flow valves (actuated in consequence of shock or similar extraneous influence F16K 17/36)
 F16K 17/22
·  ·  actuated by the difference of pressure between two places in the flow line
 F16K 17/24
·  ·  ·  acting directly on the cutting-off member
 F16K 17/26
·  ·  ·  ·  operating in either direction
 F16K 17/28
·  ·  ·  ·  operating in one direction only
 F16K 17/30
·  ·  ·  ·  ·  spring-loaded
 F16K 17/32
·  ·  ·  acting on a servo-mechanism or on a catch-releasing mechanism
 F16K 17/34
·  ·  in which the flow-energy of the flowing medium actuates the closing mechanism
 F16K 17/36
·  actuated in consequence of extraneous circumstances, e.g. shock, change of position
 F16K 17/38
·  ·  of excessive temperature
 F16K 17/40
·  with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint (valves opening on surplus pressure F16K 17/14)
 F16K 17/42
·  Valves preventing penetration of air in the outlet of containers for liquids
 F16K 19/00
Arrangements of valves and flow lines specially adapted for mixing fluids (multiple-way valves F16K 11/00)  [2]
 F16K 21/00
Fluid-delivery valves (for liquid handling B67D; for flushing devices for water-closets or the like E03D)
 F16K 21/02
·  providing a continuous small flow
 F16K 21/04
·  Self-closing valves, i.e. closing automatically after operation
 F16K 21/06
·  ·  in which the closing movement, either retarded or not, starts immediately after opening
 F16K 21/08
·  ·  ·  with ball-shaped closing members
 F16K 21/10
·  ·  ·  with hydraulic brake cylinder acting on the closure member
 F16K 21/12
·  ·  ·  with hydraulically-operated opening means; with arrangements for pressure relief before opening
 F16K 21/14
·  ·  with special means for preventing the self-closing
 F16K 21/16
·  ·  closing after a predetermined quantity of fluid has been delivered (F16K 21/10 takes precedence)
 F16K 21/18
·  ·  closed when a rising liquid reaches a predetermined level (float-actuated valves F16K 31/18)
 F16K 21/20
·  ·  ·  by means making use of air-suction through an opening closed by the rising liquid
 F16K 23/00
Valves for preventing drip from nozzles
 F16K 24/00
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 sub-class, e.g. F24F)  [2]
 F16K 24/02
·  the enclosure being itself a valve, tap, or cock  [2]
 F16K 24/04
·  for venting only (F16K 24/02 takes precedence)  [2]
 F16K 24/06
·  for aerating only (F16K 24/02 takes precedence)  [2]
 F16K 25/00 - 
F16K 51/00
Details
 F16K 25/00 - 
F16K 51/00

Note(s)

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

 F16K 25/00
Details relating to contact between valve members and seats (sealing constructions, see the appropriate groups according to the type of valve; movement of valve members other than for opening and closing F16K 29/00)
 F16K 25/02
·  Arrangements using fluid issuing from valve members or seats
 F16K 25/04
·  Arrangements for preventing erosion, not otherwise provided for
 F16K 27/00
Construction of housings (methods for welding housings B23K); Use of materials therefor
 F16K 27/02
·  of lift valves (for reducing the flow resistance of screw-spindle lift-valves F16K 1/06)
 F16K 27/03
·  ·  specially adapted for tank-cars
 F16K 27/04
·  of sliding valves
 F16K 27/06
·  of taps or cocks
 F16K 27/08
·  Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
 F16K 27/10
·  Welded housings
 F16K 27/12
·  Covers for housings
 F16K 29/00
Arrangements for movement of valve members other than for opening and closing the valve, e.g. for grinding-in, for preventing sticking
 F16K 29/02
·  providing for continuous motion
 F16K 31/00
Operating means; Releasing devices
 F16K 31/02
·  electric; magnetic
 F16K 31/04
·  ·  using a motor
 F16K 31/05
·  ·  ·  specially adapted for operating hand-operated valves or for combined motor and hand operation
 F16K 31/06
·  ·  using a magnet
 F16K 31/08
·  ·  ·  using a permanent magnet
 F16K 31/10
·  ·  ·  with additional mechanism between armature and closure member
 F16K 31/11
·  ·  ·  ·  with additional hand operating means  [2]
 F16K 31/12
·  actuated by fluid (fluid-actuated check valves F16K 15/00; fluid-actuated safety valves F16K 17/00)
 F16K 31/122
·  ·  the fluid acting on a piston (F16K 31/143, F16K 31/163, F16K 31/363, F16K 31/383 take precedence)  [2]
 F16K 31/124
·  ·  ·  servo actuated  [2]
 F16K 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]
 F16K 31/128
·  ·  ·  servo actuated  [2]
 F16K 31/14
·  ·  for mounting on, or in combination with, hand-actuated valves
 F16K 31/143
·  ·  ·  the fluid acting on a piston
 F16K 31/145
·  ·  ·  the fluid acting on a diaphragm
 F16K 31/16
·  ·  with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member (with float F16K 31/18)
 F16K 31/163
·  ·  ·  the fluid acting on a piston
 F16K 31/165
·  ·  ·  the fluid acting on a diaphragm
 F16K 31/18
·  ·  actuated by a float (floats F16K 33/00)
 F16K 31/20
·  ·  ·  actuating a lift valve
 F16K 31/22
·  ·  ·  ·  with the float rigidly connected to the valve
 F16K 31/24
·  ·  ·  ·  with a transmission with parts linked together from a single float to a single valve
 F16K 31/26
·  ·  ·  ·  ·  with the valve guided for rectilinear movement and the float attached to a pivoted arm
 F16K 31/28
·  ·  ·  ·  with two or more floats actuating one valve
 F16K 31/30
·  ·  ·  actuating a gate valve or sliding valve
 F16K 31/32
·  ·  ·  actuating a tap or cock
 F16K 31/34
·  ·  ·  acting on pilot valve controlling the cut-off apparatus
 F16K 31/36
·  ·  in which fluid from the conduit is constantly supplied to the fluid motor
 F16K 31/363
·  ·  ·  the fluid acting on a piston (F16K 31/38 takes precedence)
 F16K 31/365
·  ·  ·  the fluid acting on a diaphragm
 F16K 31/38
·  ·  ·  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)
 F16K 31/383
·  ·  ·  ·  the fluid acting on a piston
 F16K 31/385
·  ·  ·  ·  the fluid acting on a diaphragm
 F16K 31/40
·  ·  ·  with electrically-actuated member in the discharge of the motor
 F16K 31/42
·  ·  by means of electrically-actuated members in the supply or discharge conduits of the fluid motor (F16K 31/40 takes precedence)
 F16K 31/44
·  Mechanical actuating means
 F16K 31/46
·  ·  for remote operation
 F16K 31/48
·  ·  actuated by mechanical timing-device, e.g. with dash-pot (self-closing valves F16K 21/16)
 F16K 31/50
·  ·  with screw-spindle
 F16K 31/52
·  ·  with crank, eccentric, or cam
 F16K 31/524
·  ·  ·  with a cam
 F16K 31/528
·  ·  ·  with pin and slot
 F16K 31/53
·  ·  with toothed gearing
 F16K 31/54
·  ·  ·  with pinion and rack
 F16K 31/56
·  ·  without stable intermediate position, e.g. with snap action
 F16K 31/58
·  ·  comprising a movable discharge-nozzle
 F16K 31/60
·  ·  Handles
 F16K 31/62
·  ·  Pedals or like operating members, e.g. actuated by knee or hip
 F16K 33/00
Floats for actuation of valves or other apparatus
 F16K 35/00
Means to prevent accidental or unauthorised actuation
 F16K 35/02
·  to be locked or disconnected by means of a push or pull
 F16K 35/04
·  yieldingly resisting the actuation
 F16K 35/06
·  using a removable actuating or locking member, e.g. a key (F16K 35/10, F16K 35/12 take precedence)
 F16K 35/08
·  requiring setting according to a code, e.g. permutation locks
 F16K 35/10
·  with locking caps or locking bars
 F16K 35/12
·  with sealing wire
 F16K 35/14
·  interlocking two or more valves
 F16K 35/16
·  with locking member actuated by magnet
 F16K 37/00
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
 F16K 39/00
Devices for relieving the pressure on the sealing faces
 F16K 39/02
·  for lift valves
 F16K 39/04
·  for sliding valves
 F16K 39/06
·  for taps or cocks
 F16K 41/00
Spindle sealings
 F16K 41/02
·  with stuffing-box
 F16K 41/04
·  ·  with at least one ring of rubber or like material between spindle and housing
 F16K 41/06
·  ·  with at least one ring attached to both spindle and housing
 F16K 41/08
·  ·  with at least one ring provided with axially-protruding peripheral closing-lip
 F16K 41/10
·  with diaphragm, e.g. shaped as bellows or tube
 F16K 41/12
·  ·  with approximately flat diaphragm
 F16K 41/14
·  with conical flange on the spindle which co-operates with a conical surface in the housing
 F16K 41/16
·  with a flange on the spindle which rests on a sealing ring
 F16K 41/18
·  ·  sealing only when the closure member is in the opened position
 F16K 43/00
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
 F16K 47/00
Means in valves for absorbing fluid energy (for pipes F16L 55/00)
 F16K 47/02
·  for preventing water-hammer or noise
 F16K 47/04
·  for decreasing pressure, the throttle being incorporated in the closure member
 F16K 47/06
·  ·  with a throttle in the form of a helical channel
 F16K 47/08
·  for decreasing pressure and having a throttling member separate from the closure member
 F16K 47/10
·  ·  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
 F16K 47/12
·  ·  the throttling channel being of helical form
 F16K 47/14
·  ·  the throttling member being a perforated membrane
 F16K 47/16
·  ·  the throttling member being a cone
 F16K 49/00
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)
 F16K 51/00
Other details not peculiar to particular types of valves or cut-off apparatus
 F16K 51/02
·  specially adapted for high-vacuum installations  [2]