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

Note(s)

  1. Attention is drawn to the Notes following the titles of class B81 and subclass B81B relating to "micro-structural devices" and "micro-structural systems". [7]
  2. Attention is drawn to the following places:
    A47J 27/09Safety devices for pressure cookers 
    A47J 31/46Dispensing spouts, drain valves or like beverage-making apparatus 
    A61B 5/0235Valves specially adapted for measuring pressure in heart or blood vessels 
    A61F 2/24Heart valves 
    A61M 16/20Valves specially adapted for medical respiratory devices 
    A61M 39/00Tube connectors, tube couplings, valves or branch units specially adapted for medical use in general 
    A62B 9/02Valves for respiratory apparatus 
    A62B 18/10Valves for breathing masks or helmets 
    A62CFire extinguishers 
    B05BNozzles, spray heads or other discharge apparatus for spraying or atomising 
    B60C 29/00Arrangements of tyre-inflating valves relative to tyres or wheel rims; Connection of valves to wheel rims, tyres or other inflatable elastic bodies 
    B60G 17/048Valves specially adapted for adjusting vehicle fluid-spring characteristics 
    B60TValves specially adapted for vehicle brake control systems 
    B62D 5/08Vehicle power-assisted steering characterised by the type of valve used 
    B63B 7/00, B63C 9/00Arrangement of inflating valves for floatable live-saving equipment 
    B65D 47/04Container closures with discharging valves 
    B65D 83/28, B65D 83/44Nozzles or valves specially adapted for aerosol containers 
    B65D 90/32Safety valves for large containers 
    B65D 90/54Gates or closures on large containers 
    B67C 3/28Flow control devices for bottling liquids 
    B67DDispensing, delivering or transferring liquids 
    E02B 8/00Details, e.g. valves, of barrages or weirs 
    E02B 13/02Closures for irrigation conduits 
    E03DFlushing valves for water-closets or urinals 
    E05F 3/12Valve arrangement in door closers 
    E21B 21/10Valve arrangements in drilling-fluid circulation systems 
    E21B 34/00Valve arrangements for boreholes or wells 
    F01B 25/10Working-fluid valves for controlling machines or engines in general or of positive-displacement type 
    F01D 17/10Final actuators for controlling non-positive displacement machines or engines 
    F01LCyclically operated valves for machines or engines 
    F02D 9/08Throttle valves for controlling combustion engines 
    F02K 9/58Propellant feed valves for rocket-engines 
    F02MCarburettors, fuel injection 
    F02M 59/46Valves for fuel injection pumps 
    F04Pumps 
    F16F 9/34Valves for shock absorbers 
    F16L 29/00, F16L 37/28Pipe joints or quick-acting couplings with fluid cut-off means 
    F16L 55/00Arrangement of valves in pipes 
    F16L 55/055Valves specially adapted to prevent or minimise the effect of water hammer 
    F16L 55/46Launching devices for pigs or moles 
    F16N 23/00Check valves for lubrication systems 
    F17C 13/04Arrangement of valves in pressure vessels 
    F22B 37/44Arrangement of safety valves on steam boilers 
    F22D 5/34Application of valves to automatic water-feed in boiler 
    F23L 13/00Valves for air supply control to burners 
    F23Q 2/173Valves for lighters with gaseous fuel and adjustable flame 
    F24C 3/12, F24C 5/16Arrangement of valves on stoves or ranges 
    F24FAir conditioning; Ventilation 
    F25B 41/04Disposition of fluid circulation valves in refrigeration machines 
    G05DControlling non-electric variables 
    G10B 3/06Valves for organs 
    G10D 9/04Valves for other wind-actuated musical instruments.  [5] 
 F16K
Subclass index
CONSTRUCTIONAL TYPES
Lift-valves, gate valves or sliding valves, taps, diaphragm cut-off apparatus 1/00 - 7/00
Multiple-way valves 11/00
Other constructional types of cut-off apparatus, arrangements for cutting off 13/00
FUNCTIONAL TYPES
Check valves; safety or equalising valves; arrangements for mixing fluids 15/00; 17/00; 11/00
Fluid-delivery valves; valves for preventing drip from nozzles 21/00; 23/00
For venting or aerating enclosures 24/00
DETAILS OR GENERAL MEANS
Handling or control 29/00, 31/00, 39/00, 43/00
Auxiliary means 47/00, 49/00
Safety 35/00, 37/00
Details: contact between valve members and seats, housings, floats, sealings 25/00, 27/00, 33/00, 41/00
Other details 51/00
 F16K 1/00 - 
F16K 13/00
Constructional types (check valves F16K 15/00)
 F16K 1/00 - 
F16K 13/00

Note(s)

In groups F16K 1/00-F16K 13/00, 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
·  ·  ·  ·  Shape 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 (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 valve-spindles  [4]
 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. cut-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 (container gates or closures operating by deformation of flexible walls B65D 90/56; 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 11/00
Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid  [4]
 F16K 11/02
·  with all movable sealing faces moving as one unit
 F16K 11/04
·  ·  comprising only lift valves
 F16K 11/044
·  ·  ·  with movable valve members positioned between valve seats  [4]
 F16K 11/048
·  ·  ·  with valve seats positioned between movable valve members  [4]
 F16K 11/052
·  ·  ·  with pivoted closure members, e.g. butterfly valves  [4]
 F16K 11/056
·  ·  ·  with ball-shaped valve members  [4]
 F16K 11/06
·  ·  comprising only sliding valves
 F16K 11/065
·  ·  ·  with linearly sliding closure members  [4]
 F16K 11/07
·  ·  ·  ·  with cylindrical slides  [4]
 F16K 11/072
·  ·  ·  with pivoted closure members  [4]
 F16K 11/074
·  ·  ·  ·  with flat sealing faces  [4]
 F16K 11/076
·  ·  ·  ·  with sealing faces shaped as surfaces of solids of revolution  [4]
 F16K 11/078
·  ·  ·  with pivoted and linearly movable closure members  [4]
 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 electromagnetically-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); Arrangements for cutting-off  [4]
 F16K 13/02
·  with both sealing faces shaped as small segments of a cylinder and the moving member pivotally mounted
 F16K 13/08
·  Arrangements for cutting-off  [4]
 F16K 13/10
·  ·  by means of liquid or granular medium  [4]
 F16K 15/00 - 
F16K 24/00
Functional types
 F16K 15/00 - 
F16K 24/00

Note(s)

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]

 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  [3]
 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 (connecting valves to inflatable elastic bodies B60C 29/00)
 F16K 17/00
Safety valves; Equalising valves (pressure relief devices for aerosol containers B65D 83/70)
 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 fracturing member, e.g. fracturing diaphragm, fusible joint (valves with fracturing member opening on surplus pressure on one side F16K 17/14)
 F16K 17/42
·  Valves preventing penetration of air in the outlet of containers for liquids
 F16K 21/00
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)
 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 subclass, 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 (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)
 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 27/04
·  of sliding valves
 F16K 27/06
·  of taps or cocks
 F16K 27/07
·  of cutting-off parts of tanks, e.g. tank-cars  [4]
 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 or 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; float-actuated valves in steam-traps F16T 1/20, in boilers F22D 5/08)
 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 31/64
·  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]
 F16K 31/66
·  ·  electrically or magnetically actuated, e.g. by magnets with variable magnetic characteristics  [4]
 F16K 31/68
·  ·  actuated by fluid pressure or volumetric variation in a confined chamber  [4]
 F16K 31/70
·  ·  mechanically actuated, e.g. by a bimetallic strip  [4]
 F16K 31/72
·  Operating means or releasing devices specifically adapted to enhance the speed of valve response  [4]
 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]