JKG1-04-000A Vent check valve

Model jkg1-04-000a, dpw-00-000, jkg1-03-000a, brand iron
Locomotive hand pressure valve txjt.503.00, txjt.505.00 locomotive high pressure safety valve, foot valve of txjt.504.00 locomotive, locomotive door interlock valve zz14001 txjt.506.00/zz14004 valve, locomotive, locomotive valve txjt.507.00 electric control valve electric control valve, 6q52-000-000, t850-00-00, two two tfk1b two three electric control valve, electric control valve through Tfk, two position two way control valve tfkm, two position three way electric control valve tfkm.
Sand control valve h23d-l9-b, elastic stop solenoid valve h23d2-l7-b, horn and pantograph solenoid valve h23d-l9-g, the signal type h23dbs-s (cock with lock), signal h23dbs-x (knob), cock type locomotive electric control valve h23xjd-l6, h23xjd-l10 locomotive electronic control valve, pressure regulating valve of qty-15 locomotive, locomotive ka-g1/2 one-way valve, electric control valve tkf4-10-110. Electric control valve tkf3-110, shutdown solenoid valve, electro pneumatic valve 23dkf12-6t, the sand valve tfk7-110 tfk6-110 valve, no load, cylindrical tfk5-110 electric control valve, electric control valve slsd550-rs2sdw, interlock interlock solenoid electromagnet tml-110, iron tfk-110, four kinds of electric control valve solenoid valve tfk4-110, qf1-22/24, jkg1-04-00a outlet check valve, exhaust valve solenoid jkg1-03-000a the drain valve 23dkf2-6t conversion electric control valve 23dkf1-6t, sand whistle valve 22dkf3-8t, electromagnetic outlet valve dpw-00-000, jkg1-02-000a inlet valve, electromagnetic outlet valve tdjkg1, valve assembly, nt31-147, Sanders dlj6-02-09-300-1, and nt87-00-82 for valve seat, low pressure safety valve nt3-00-75, nt2-00-75 low pressure safety valve, safety valve pressure security nt3-00-75, an nt2-00-75 pressure safety valve, reversing interlock device n303.00.00, two position three way solenoid valve sr361-rs4sd, two position three way solenoid valve k23jd-15, railway locomotive mirror hand valve the regulator, 704 - 1,
Arc free DC electromagnetic contactor ycc16q77, liquid level instrument ywy-6e, boost filter module tock02, double beam dynamic display level meter hlywy-1, DC power converter xl3-12c, intermediate relay d-u204-klc, inverter power hlnb-4000va/110v,
Dust blower controller cfk-i control device, a double voltage regulator tpz9a auxiliary machine, TTY voltage regulator, voltage regulator 8q3a, tty-gk voltage regulator, voltage regulator tty-hgk, df-j55a voltage regulator, voltage regulator DJ-A, tty-4 voltage regulator, voltage adjusting device dgdy-001, stepless speed stepless drive tqb-1b adjustable speed drives wjts-ii, jzb-ii converter, DC-DC converter wd-iii power module DC-DC, locomotive power supply dgps-24/07-a, sfjd-ii locomotive special power supply, DC switching power supply dd-2410a, tgn-110a inverter, digital electric controller yks-2, sdkq.a1 control system, jdkq-i control system, jdkq-ii control system, jkg-i control system, automatic control box of wkz-2l electric heating, multi-channel jw-102a temperature controller, temperature sensor wdc-1, WKQ shutter controller, temperature sensor wkq-d, wjts controller, s701f controller driver, tks9 driver controller, electric connection  Contact device 4q1a, temperature transmitter sbwzk-2460-23k (f), temperature sensor wdj-iii, multi-channel temperature sensor jw-102a,
Tjy2 hydraulic pressure relay, relay tjy1b, 5q8 hydraulic oil pressure relay, relay 5q9, wheel rail lubricating electronic controller hb-2b, HB-2 nozzle, diesel engine speed sensor czc-1, electronic generator dh303d-c, zjj3-62-04-000 switching valve switch, knife switch thd2-400-110v, fourteen bit key board switch group, the ten group switch tka-10, fd1-1 power amplifier, power amplifier fd-24dc-0201, fd-24dc-0201lc power amplifier, a resistance capacitance protection device, start adjusting resistor zx9-4/110, micro controller board adlc17fe196m2 70bf3-3j, stepper motor, stepper motor stepper motor 70bf-340b, 70bf-340c, 70bf-340d, stepper motor, stepper motor 70bf-341da, 3q53 switch, tkh6/3q7b switch, contactor combination t661/4q2b, reverse 3q51. Scm02a scm03a signal transmitter, signal transmitter, temperature relay sld-3, temperature relay jw-102 single temperature relay Jw-102 JS, time relay, time relay tjs1-20/22, the engine speed relay zsk-1, speed relay tjv1-07/10, overvoltage relay zy607, beat relay, splitter starting relay tjq2s, time relay tjs6-45/60, time relay tjs3, time relay n305.00.00, time relay qjsj-45, time relay txjt-702-00 relay, general tjz2-110/32, relay time-av-s, double delay module zd005, branch overcurrent relay tjl-1200, qjzi relay, time relay tjs3, time relay tjs6-45/60, overvoltage relay tjdg2-125/10, overvoltage relay gyj-125, overvoltage relay zd003, overcurrent relay tjl3-0.5/11 relay, idle gjk2-0.5/11, gtj9-10a solid state relay, solid state relays gh-2z2210, tt-l5a solid state relay, solid state relays g3tb-0d201p, gltq excitation regulator, excitation the air pressure regulator gltq-2, electrical resistance. Protector kdq-1, suppressor yzq-3, suppressor 1q18.900.000, rectifier box zd-011,
Over current rectifier 3zl (n411.08.00), grounded rectifier board 4zl (n411.24.00), current signal rectifier board 3zl (t65.19.00)
Rectifier plate 4zl (t735.04.00) reverse current assembly t735.8.00 solid state relay jgx-16fa, locomotive bottom bolt NXD, locomotive reversing interlock tkl1,