Patents-Review.com
ClassID:

152234 ⎘

F16K15/026 - CPC Classification

Classification description:

Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open

Sub-classes:
Recent Application in this class:
#1
20260110239
2026-04-23

REDUNDANT SEAL ASSEMBLY

 #2
20260098590
2026-04-09

PRESSURE RELIEF VALVE WITH DUAL-FUNCTION SPRING

 #3
20260078831
2026-03-19

CHECK VALVE

 #4
20260049665
2026-02-19

VALVE MODULE FOR VACUUM PUMP

 #5
20260048403
2026-02-19

HIGH-PRESSURE SPRAY NOZZLE ASSEMBLY

 #6
20260036214
2026-02-05

Y-Check Valves, Related Components, and Related Methods

 #7
20260016092
2026-01-15

BUTTERFLY VALVE

 #8
20260009478
2026-01-08

CHECK VALVE DAMPING

 #9
20260002593
2026-01-01

POPPET FOR VALVE, VALVE AND METHOD FOR CONTROLLING FLUID FLOW THROUGH THE VALVE

 #10
20250320110
2025-10-16

CRYOGENIC PUMP WITH INVERSE ORIENTATION FOR HYDROGEN FUELING STATION

 #11
20250314151
2025-10-09

CHECK VALVE FOR DOWNHOLE GAS LINES

 #12
20250314143
2025-10-09

VALVE CARTRIDGE

 #13
20250257959
2025-08-14

DEVICES AND METHOD FOR REGULATING COOLER FLOW THROUGH AUTOMOTIVE TRANSMISSIONS

 #14
20250257812
2025-08-14

Valve

 #15
20250251044
2025-08-07

VALVE MEMBER INCLUDING CAVITY, AND RELATED ASSEMBLIES, SYSTEMS, AND METHODS

 #16
20250221603
2025-07-10

CUP WASHER

 #17
20250215981
2025-07-03

POPPET-STYLE VALVE ARRANGEMENTS

 #18
20250189053
2025-06-12

WATER FLOW REGULATION

 #19
20250146585
2025-05-08

Systems and Methods for Check Valves with Through-Flow, Grooved Poppets

 #20
20250114226
2025-04-10

CHECK VALVE WITH DOCKING STATION FOR GASTROINTESTINAL BALLOON

 #21
20250052330
2025-02-13

Pressure-Driven Flow Rate Control Valves

 #22
20250052325
2025-02-13

Valve member including cavity, and related assemblies, systems, and methods

 #23
20250003399
2025-01-02

Fluid end assembly

 #24
20250003300
2025-01-02

VALVE CARTRIDGE

 #25
20240410507
2024-12-12

FLUID HANDLING COUPLINGS

 #26
20240401703
2024-12-05

GAS CYLINDER VALVE ASSEMBLY

 #27
20240397661
2024-11-28

FAN MODULE AND ELECTRONIC DEVICE

 #28
20240360911
2024-10-31

CHECK VALVE

 #29
20240353045
2024-10-24

Vacuum breaker valve

 #30
20240344582
2024-10-17

DAMPER WITH BASE LINE VALVE

 #31
20240328731
2024-10-03

FLUID MACHINE AND COOLING DEVICE

 #32
20240326005
2024-10-03

HYDROGEN GENERATION DEVICE

 #33
20240318731
2024-09-26

POPPET-STYLE VALVE ARRANGEMENTS

 #34
20240295271
2024-09-05

POP-UP VALVE FOR MANAGING BACKFLOW

 #35
20240288085
2024-08-29

DEVICE FOR CONTROLLING THE FLOW OF A CRYOGENIC MEDIUM

 #36
20240192709
2024-06-13

FLUID FLOW THROTTLE VALVE

 #37
20240159323
2024-05-16

Adjustable Flow Control Valve

 #38
20240141887
2024-05-02

VALVE COMPONENT

 #39
20240068468
2024-02-29

VALVE COMPONENT

 #40
20240019084
2024-01-18

Low emission receptacles

 #41
20230417328
2023-12-28

Butterfly valve

 #42
20230358328
2023-11-09

PNEUMATIC VALVE SYSTEM AND METHODS OF USING THE SAME

 #43
20230332849
2023-10-19

Devices and method for regulating cooler flow through automotive transmissions

 #44
20230313898
2023-10-05

AUGMENTED REALITY CARD ACTIVATION

 #45
20230263364
2023-08-24

AUTOMATIC DETERGENT FEEDING DEVICE AND WASHING APPARATUS

 #46
20230258273
2023-08-17

Valve assembly

 #47
20230258272
2023-08-17

CHECK VALVE

 #48
20230243430
2023-08-03

Flow control valve

 #49
20230187768
2023-06-15

VALVE FOR BATTERY

 #50
20230175594
2023-06-08

Water flow regulation

 #51
20230151898
2023-05-18

Check valve

 #52
20230139113
2023-05-04

Injection valve, method and system

 #53
20230132067
2023-04-27

Pilot check valve

 #54
20230128541
2023-04-27

WATER DIVERSION VALVE AND SHOWER DEVICE

 #55
20230069930
2023-03-09

Dual flow converted auto-fill float valve

 #56
20230008417
2023-01-12

VALVE

 #57
20220390031
2022-12-08

FLUID END USING CARTRIDGE CHECK VALVE AND WEDGE RETENTION SYSTEM

 #58
20220373093
2022-11-24

Diverted pressure regulator for a liquid

 #59
20220341496
2022-10-27

Poppet-style valve arrangements

 #60
20220333703
2022-10-20

Pressure-driven flow rate control valves

 #61
20220325810
2022-10-13

VALVE CARTRIDGE, VALVE CARTRIDGE KIT, VALVE INCORPORATING A VALVE CARTRIDGE OR VALVE CARTRIDGE KIT AND A METHOD OF ASSEMBLING A VALVE

 #62
20220316611
2022-10-06

Jetted check valve

 #63
20220307568
2022-09-29

Fluid-damped valve

 #64
20220260164
2022-08-18

CHECK VALVE

 #65
20220252172
2022-08-11

Hydraulic pressure relief valve with integrated calibration mechanism

 #66
20220235873
2022-07-28

VACUUM SEWAGE SYSTEMS WITH CHECK VALVES AND CHECK VALVES FOR VACUUM SEWAGE SYSTEMS

 #67
20220169495
2022-06-02

High pressure fuel nozzle leak stop assembly

 #68
20220154850
2022-05-19

CHECK VALVE DAMPING

 #69
20220154726
2022-05-19

Compressor unit with a damped axial check valve for a discharge outlet

 #70
20220146005
2022-05-12

Pressure holding valve for an air spring and air spring comprising the pressure holding valve

 #71
20220145997
2022-05-12

Flow control valve

 #72
20220136612
2022-05-05

RELIEF VALVE FOR GAS

 #73
20220136511
2022-05-05

Fluid pump and outlet check valve assembly thereof

 #74
20220120384
2022-04-21

Low emission receptacles

 #75
20220106857
2022-04-07

Traveling relief valve

 #76
20220099200
2022-03-31

Intergrated check valve

 #77
20220090542
2022-03-24

Passive active poppet-type bleed valves

 #78
20220065358
2022-03-03

POPPET VALVE

 #79
20220065357
2022-03-03

BACKFLOW PREVENTION DEVICE

 #80
20220057005
2022-02-24

Capacity control valve

 #81
20220025980
2022-01-27

Jetted check valve

 #82
20220003231
2022-01-06

High pressure common rail fuel pump outlet check valve retainer

 #83
20210404545
2021-12-30

Devices and method for regulating cooler flow through automotive transmissions

 #84
20210381504
2021-12-09

WELL SERVICE VALVE SEAT REMOVAL

 #85
20210372530
2021-12-02

Butterfly Valve

 #86
20210364113
2021-11-25

Pipe coupling having valve element and coil spring for use therein

 #87
20210348619
2021-11-11

Passive bleed valves with adjustable pressure threshold

 #88
20210317921
2021-10-14

SAFETY VALVE AND RADIATOR USING SUCH SAFETY VALVE

 #89
20210278003
2021-09-09

Check valve assembly having a poppet

 #90
20210262463
2021-08-26

Reciprocating gas compressor valve

 #91
20210231224
2021-07-29

Valve

 #92
20210222785
2021-07-22

Valve seat assembly

 #93
20210207726
2021-07-08

Check valve with conforming seat

 #94
20210190219
2021-06-24

Switching valve, valve apparatus, holding apparatus, lithography apparatus, and method of manufacturing article

 #95
20210148473
2021-05-20

LEAK PROOF NON RETURN VALVE

 #96
20210140560
2021-05-13

Self sealing jetting valve

 #97
20210140550
2021-05-13

Pressure-driven flow rate control valves

 #98
20210093474
2021-04-01

Check valve with docking station for gastrointestinal balloon

 #99
20210088187
2021-03-25

Low emission nozzles and receptacles

 #100
20210082672
2021-03-18

Method and apparatus for deposition cleaning in a pumping line

 #101
20210071768
2021-03-11

Rotating Valve Assembly

 #102
20210033208
2021-02-04

CHECK VALVE

 #103
20210025528
2021-01-28

Valve guide with integral assembly support

 #104
20210025400
2021-01-28

Device for protecting an electric pump against overpressures

 #105
20200400140
2020-12-24

Valve for reciprocating pump assembly

 #106
20200386334
2020-12-10

Gas purge port

 #107
20200378168
2020-12-03

Damper device and hinge assembly including the same

 #108
20200376501
2020-12-03

Variable inertial particle separator

 #109
20200370669
2020-11-26

Fluid flow device

 #110
20200370636
2020-11-26

Internal-pressure rise prevention structure of speed reducer

 #111
20200368980
2020-11-26

IMPROVEMENTS TO TIRE REPAIR APPARATUS

 #112
20200362975
2020-11-19

Valve assembly for a fluid end with limited access

 #113
20200355284
2020-11-12

Valve Assembly

 #114
20200347950
2020-11-05

AIRCRAFT ONE-PIECE FUEL NONRETURN DEVICE AND METHOD FOR MANUFACTURING SUCH A DEVICE

 #115
20200309473
2020-10-01

APPARATUS FOR PROTECTING NEGATIVE PRESSURE

 #116
20200308925
2020-10-01

Annulus safety valve system and method

 #117
20200307820
2020-10-01

PRESSURE-OPERATED CHECK VALVE

 #118
20200300134
2020-09-24

Recirculation valve

 #119
20200292091
2020-09-17

Valve device

 #120
20200284363
2020-09-10

AXIAL FLOW CHECK VALVE

 #121
20200240536
2020-07-30

Proportional flow control valve poppet with flow control needle

 #122
20200232301
2020-07-23

Drain-back valve and method

 #123
20200200285
2020-06-25

VALVE FOR A HEAT-TRANSFER FLUID CIRCUIT

 #124
20200200066
2020-06-25

Axial fluid spray nozzle with vent valve

 #125
20200166427
2020-05-28

SUBSEA VALVE, FLOW SYSTEM AND METHOD OF USE

 #126
20200158259
2020-05-21

FLOW CONTROL ASSEMBLY FOR SUBSEA APPLICATIONS

 #127
20200141397
2020-05-07

Multi-fluid precision calibration pressure source

 #128
20200124193
2020-04-23

Guide vane check valves

 #129
20200124182
2020-04-23

Anti-shock check valve

 #130
20200102924
2020-04-02

Fuel pump and outlet valve thereof

 #131
20200087133
2020-03-19

Beer spear with a pressure relief valve

 #132
20200080657
2020-03-12

Subsea bop control system with dual-action check valve

 #133
20200075298
2020-03-05

Method and apparatus for deposition cleaning in a pumping line

 #134
20200040901
2020-02-06

Passive bleed valves with adjustable pressure threshold

 #135
20200011443
2020-01-09

Flow control valve and method of manufacturing flow control valve housing

 #136
20190383424
2019-12-19

Air control valve and device for a cabin suspension system of a motor vehicle

 #137
20190376508
2019-12-12

WELL SERVICE VALVE SEAT REMOVAL

 #138
20190368418
2019-12-05

Pressure relief valve

 #139
20190360642
2019-11-28

Low emission nozzles and receptacles

 #140
20190360292
2019-11-28

Testable back pressure valve and pressure testing system therefor

 #141
20190353261
2019-11-21

Jump valve

 #142
20190346065
2019-11-14

MULTIVALVE MEMBER FLOW CONTROL APPARATUS AND METHOD

 #143
20190331030
2019-10-31

Passive active poppet-type bleed valves

 #144
20190301446
2019-10-03

Reciprocating gas compressor valve

 #145
20190277194
2019-09-12

Adjustable snap action passive inline air valve

 #146
20190275881
2019-09-12

Fuel supply device

 #147
20190242495
2019-08-08

Device for detecting fluid flow

 #148
20190226600
2019-07-25

Automatic water regulator

 #149
20190219195
2019-07-18

Split micro-valve

 #150
20190211789
2019-07-11

Check valve, high-pressure component, and high-pressure fuel pump

 #151
20190195214
2019-06-27

Poppet valve assembly

 #152
20190193704
2019-06-27

Hydraulic failure isolation valve

 #153
20190176791
2019-06-13

Quick Service Limiting Valve

 #154
20190170131
2019-06-06

Intake pulsation damper of swash plate-type compressor

 #155
20190168607
2019-06-06

Ventilation flow rate regulator for a pressurised tank of a vehicle

 #156
20190162328
2019-05-30

In-line fluid pressure regulator

 #157
20190162327
2019-05-30

Self sealing jetting valve

 #158
20190154034
2019-05-23

Valve for reciprocating pump assembly

 #159
20190154033
2019-05-23

Plunger pump fluid end

 #160
20190145545
2019-05-16

Flow control assembly for subsea applications

 #161
20190136991
2019-05-09

METHOD AND APPARATUS FOR DRAINING

 #162
20190128100
2019-05-02

Drain-back check valve assembly

 #163
20190120392
2019-04-25

Check valve

 #164
20190113146
2019-04-18

Subsea BOP control system with dual-action check valve

 #165
20190107218
2019-04-11

Pressure relief valve with stop

 #166
20190107206
2019-04-11

Valve for controlling coolant flow and fuel cell cooling system using the same

 #167
20190107033
2019-04-11

Valve for adjusting a cooling fluid flow for piston cooling

 #168
20190092162
2019-03-28

Check valve for fuel tank

 #169
20190085991
2019-03-21

Check valve assembly

 #170
20190085929
2019-03-21

Check valve assembly

 #171
20190072181
2019-03-07

Hydraulic piston with cooling and lubrication valve

 #172
20190063615
2019-02-28

Enhancement of valve flow and pressure characteristics in valves and hydraulic systems

 #173
20190056033
2019-02-21

Valves including multiple seats and related assemblies and methods

 #174
20190055718
2019-02-21

Discharge cold switching valve and its switching method

 #175
20190040966
2019-02-07

Valve seat with a hardened sleeve interior and a metal exterior

 #176
20190031494
2019-01-31

Method for transferring volatile liquids

 #177
20190024809
2019-01-24

Seal with integrated fluid regulating device

 #178
20190024802
2019-01-24

Butterfly valve

 #179
20180363416
2018-12-20

Pressurized seat check valve

 #180
20180335154
2018-11-22

Check valve

 #181
20180328510
2018-11-15

Subsea BOP control system with dual-action check valve

 #182
20180328329
2018-11-15

Relief valve device and high-pressure pump using same

 #183
20180308733
2018-10-25

Gas purge filter

 #184
20180306176
2018-10-25

Poppet valve

 #185
20180299019
2018-10-18

Contamination resistant poppet valve

 #186
20180292018
2018-10-11

Reverse flow check valve in hydraulic valve with series circuit

 #187
20180265047
2018-09-20

VEHICULAR WASHER DEVICE

 #188
20180251365
2018-09-06

Volatile liquids refueling apparatus with dual locking receiver

 #189
20180251364
2018-09-06

Volatile liquids refueling apparatus

 #190
20180239370
2018-08-23

Method and apparatus for controlling the flow rate of fluid discharge

 #191
20180238458
2018-08-23

Anti-drain valve assembly with integrated fixation function

 #192
20180221184
2018-08-09

Check valve with docking station for gastrointestinal balloon

 #193
20180216506
2018-08-02

Check valve with anti-icing protection

 #194
20180209557
2018-07-26

Check valve

 #195
20180207655
2018-07-26

Check valve with nonlinear force load for HVLP spraying

 #196
20180202133
2018-07-19

Anti-freezing water valve with optional anti-siphon assembly and water-valve accessories

 #197
20180195630
2018-07-12

Cylinder valve

 #198
20180180007
2018-06-28

High pressure common rail fuel pump outlet check valve spring retainer method

 #199
20180178226
2018-06-28

HIGH-PRESSURE SPRAY NOZZLE ASSEMBLY

 #200
20180169835
2018-06-21

Wet abrasive blasting system and method

 #201
20180163506
2018-06-14

Testable back pressure valves

 #202
20180163505
2018-06-14

Testable back pressure valves

 #203
20180141076
2018-05-24

Material supply system with valve assembly

 #204
20180135767
2018-05-17

Check valve

 #205
20180128391
2018-05-10

NIPPLE

 #206
20180128390
2018-05-10

Differential pressure type inflating device

 #207
20180128386
2018-05-10

Adjustable pressure actuated diaphragm valve assembly

 #208
20180119831
2018-05-03

Valve device

 #209
20180119830
2018-05-03

Valve apparatus, system and method

 #210
20180112780
2018-04-26

Valves including multiple seats and related assemblies and methods

 #211
20180073646
2018-03-15

Check structure and hydraulic braking system having the same

 #212
20180066619
2018-03-08

High-pressure fuel supply pump having electromagnetically-driven intake valve

 #213
20180058595
2018-03-01

Guide vane check valves

 #214
20180051625
2018-02-22

SWITCH VALVE AND CONNECTING ROD WITH SWITCH VALVE

 #215
20180038320
2018-02-08

MULTI-STAGE CHECK VALVE FOR VAPOR RECIRCULATION LINE OF LIQUID CONTAINMENT SYSTEM

 #216
20180037378
2018-02-08

Spring-biased valve assembly

 #217
20180031143
2018-02-01

Balancing valve for adjusting the distribution of fluids in multiple pipes

 #218
20180030933
2018-02-01

Canister valve device for vehicle

 #219
20180024577
2018-01-25

Pressure-limiting valve

 #220
20180023716
2018-01-25

Subsea BOP control system with dual-action check valve

 #221
20180022191
2018-01-25

Suction dampening device with internal dampening for vehicle air conditioning compressor

 #222
20170361667
2017-12-21

Tire pressure management system

 #223
20170343100
2017-11-30

Driving force transmission device of vehicle

 #224
20170328316
2017-11-16

Multi-chamber blowoff valve

 #225
20170321691
2017-11-09

FLUID END OF A HIGH PRESSURE PLUNGER PUMP

 #226
20170307462
2017-10-26

Subsea Valve, Flow System and Method of Use

 #227
20170307093
2017-10-26

Pilot check valve

 #228
20170298932
2017-10-19

Well service valve seat removal

 #229
20170297041
2017-10-19

Injector

 #230
20170296796
2017-10-19

Method and apparatus for draining

 #231
20170292495
2017-10-12

Hydrostatic axial piston machine

 #232
20170292481
2017-10-12

Relief valve and fuel supplying system

 #233
20170284277
2017-10-05

Pilot Operated Piston Oil Cooling Jet Control Valve

 #234
20170282884
2017-10-05

Drain valve

 #235
20170260882
2017-09-14

Piston for a hydraulic valve for a cam phaser and hydraulic valve for the cam phaser

 #236
20170227135
2017-08-10

Pressure relief valve tuning feature

 #237
20170211718
2017-07-27

Electromagnetically operated valve

 #238
20170211522
2017-07-27

Adjustable, low loss valve for providing high pressure loop exhaust gas recirculation

 #239
20170204845
2017-07-20

Air compressor

 #240
20170200591
2017-07-13

Method and apparatus for deposition cleaning in a pumping line

 #241
20170198396
2017-07-13

Method and apparatus for valve deposition cleaning and prevention by plasma discharge

 #242
20170191582
2017-07-06

Actuator for a water spray structure

 #243
20170191248
2017-07-06

Cool water discharging method and a switch valve with cool water discharging function

 #244
20170182506
2017-06-29

SUCK-BACK LIQUID DISPENSING VALVE AND VALVE ASSEMBLY

 #245
20170175930
2017-06-22

Noise reducing filler valve

 #246
20170167808
2017-06-15

APPARATUS FOR PROTECTING NEGATIVE PRESSURE

 #247
20170167619
2017-06-15

Check valve having a friction free replaceable valve insert check assembly

 #248
20170167458
2017-06-15

Manually actuatable feed pump and fuel system with a feed pump

 #249
20170159886
2017-06-08

Low emission nozzles and receptacles

 #250
20170159864
2017-06-08

Leak resistant and serviceable receptacle

 #251
20170159834
2017-06-08

Check valve

 #252
20170147014
2017-05-25

Pressure reducing valve

 #253
20170146174
2017-05-25

Quick coupling engageable under pressure

 #254
20170146139
2017-05-25

Robust in-line valve

 #255
20170145913
2017-05-25

CHECK VALVE FOR CONNECTING ROD OF VARIABLE COMPRESSION INTERNAL COMBUSTION ENGINE AND CONNECTING ROD WITH CHECK VALVE

 #256
20170138517
2017-05-18

COUPLING ELEMENT FOR CONNECTING FLUID CONDUCTING CONDUITS AND CORRESPONDING COUPLING ARRANGEMENT

 #257
20170138494
2017-05-18

Check valve

 #258
20170138493
2017-05-18

Valve device

 #259
20170138492
2017-05-18

Hydraulic overpressure valve and hydraulic machine

 #260
20170138484
2017-05-18

Touch-type gas control valve

 #261
20170127503
2017-05-04

Inner static electricity eliminating control valve for organic solvent delivery pipelines

 #262
20170122274
2017-05-04

One-way valve and fuel separating apparatus including the same

 #263
20170114913
2017-04-27

Temperature actuated electromechanical pressure relief valve

 #264
20170113671
2017-04-27

Noise reduction device for negative pressure line of brake booster

 #265
20170108132
2017-04-20

Valve

 #266
20170102085
2017-04-13

Subsea BOP control system with dual-action check valve

 #267
20170101937
2017-04-13

Flow limiting duct vent valves and gas turbine engine bleed air systems including the same

 #268
20170089488
2017-03-30

Butterfly valve

 #269
20170089478
2017-03-30

Flow control valve and method of manufacturing flow control valve housing

 #270
20170089469
2017-03-30

Butterfly valve

 #271
20170089468
2017-03-30

Butterfly valve

 #272
20170080441
2017-03-23

Suck-back liquid dispensing valve and valve assembly

 #273
20170059186
2017-03-02

Hot water recovery

 #274
20170037989
2017-02-09

Tube coupling device having valve member

 #275
20170030616
2017-02-02

Throttle device, and refrigeration cycle system including same

 #276
20170002947
2017-01-05

Valve for reciprocating pump assembly

 #277
20170002944
2017-01-05

Highly reliable service port

 #278
20160369905
2016-12-22

Control valve

 #279
20160355423
2016-12-08

OZONE FAUCET SWITCHING STRUCTURE

 #280
20160348799
2016-12-01

Decompression coupling block

 #281
20160348628
2016-12-01

METHOD AND SYSTEM FOR DAMPING A CHECK VALVE

 #282
20160348471
2016-12-01

Fluid release valve

 #283
20160327171
2016-11-10

Fluidic safety valve and battery component equipped therewith

 #284
20160288434
2016-10-06

Apparatus for sealing and/or inflating objects and self-closing screw coupling

 #285
20160273668
2016-09-22

Valve with damper

 #286
20160273450
2016-09-22

Self-actuated, in-line bleed valve

 #287
20160258432
2016-09-08

Fluid end of a high pressure plunger pump

 #288
20160252059
2016-09-01

FUEL SUPPLY DEVICE

 #289
20160239028
2016-08-18

Apparatus to interface with a corrugated diaphragm

 #290
20160230900
2016-08-11

Valve device

 #291
20160230780
2016-08-11

Valve device and hydraulic system

 #292
20160230678
2016-08-11

Control valve with annular poppet check valve

 #293
20160222930
2016-08-04

Pressure adjuster

 #294
20160215743
2016-07-28

Pressure-limiting valve for a fuel injection system and fuel injection system

 #295
20160195317
2016-07-07

Expansion valve comprising a stop element

 #296
20160195196
2016-07-07

Manual reset hydraulic valve latch for a hydraulically controlled valve

 #297
20160178078
2016-06-23

Check valve having polymeric seat and poppet

 #298
20160169397
2016-06-16

Check valve

 #299
20160123484
2016-05-05

Check valve

 #300
20160101684
2016-04-14

Check valve