GE 745-W3-P511-G51-HI-R-E Large Stock You Want to Know Warranty: one year Condition: brand new and original Delivery time: Ship Today Payment term: T/T Your Best Solution Moore Automation can supply you PLC & DCS products as below, Allen Bradley , Honeywell , Bently Nevada , ABB , General Electric , ICS TRIPLEX , Triconex. Pls contact us freely, you will get good price , good service , brand new and original products.
GBCDG61EG011SGCH IDMT 3 O/C OR 2O/C& 1 E/F RELAY WITH HI Technical specification Relay model no CDG61EG011SGCH Relay type CDG 61 Case size 3D HOR. Application 2 O/C & 1 E/F Current setting - O/C 2.5 to 10 amps Contacts 3M S/R Output contacts 2M S/R C.T.Secondary 5 amps Taps / Frequency STD / 50 Hz Burden 3 VA Operating time 3 secs Flag Yes Current setting - E/F 1 to 4 amps High set - O/C Setting 20 to 80 amps High set - E/F Setting 10 to 40 amps High set/High set contact CAG 13 / 2M S/R Name plate RFG9126 904 Outline drawing MFJ 014 Wiring diagram MADZ 821.27-1
GBCDG61EG101ZSCH IDMT 3 O/C OR 2O/C& 1 E/F RELAY WITH HI TECHNICAL SPECIFICATION Model No - CDG61EG101ZSCH CDG61/CAG17(MRK-III) Application - 2 O/C + 1 E/F Case Size - 3D Horz C.T. Secondary - 5 Amps O/C Setting - 2.5 - 10 Amps. Frequency / Tap - 50 HZ / Std Burden / D.M.T - 3 Va / 3 Sec Contacts - 2 N/O 2 N/C H/R E/F Setting - 0.5 - 2 Amps. Flag - Yes High Set Type / Contacts - CAG17 / 2 N/O S/R HighSet E/F Setting - 5 - 40 Amps HighSet O/C Setting - 12.5 - 100 Amps. Mounting - Flush Name Plate - RFG9126 903 Outline Diagram - MFJ 014 Wiring Diagram - MADZ821.32
GBCDG61EG054SGCH IDMT 3 O/C OR 2O/C& 1 E/F RELAY WITH HI Technical specification Relay model no - CDG61EG054SGCH Relay type - CDG 61 Case size - 3D H 30T Application - 2 O/C & 1 E/F Current setting - O/C - 0.5 to 2 amps Contacts - 3 N/O S/R Output contacts - 2 N/O S/R C.T.Secondary - 1 amps Frequency - 50 Hz Burden / Operating time - 3 VA / 1.3 secs Current setting - E/F 0.2 to 0.8 amps High set - O/C setting 4 to 16 amps High set - E/F setting 2 to 8 amps High set CAG 13 Name plate RFG9125 902 Outline drawing MFJ 014 Wiring diagram - MADZ 821.27-1
GBCDG61EG057SGCH IDMT 3 O/C OR 2O/C& 1 E/F RELAY WITH HI Technical specification Relay model no - CDG61EG057SGCH Relay type - CDG 61 Case size - 3D HOR. Application - 2 O/C & 1 E/F Current setting - O/C 0.5 to 2 amps Contacts 3 N/O S/R Output contacts 2 N/O S/R C.T.Secondary 1 amps Frequency 50 Hz Burden / Operating time 3 VA / 3 secs Current setting - E/F 0.2 to 0.8 amps High set - O/C setting 4 to 16 amps High set - E/F setting 1 to 4 amps High set CAG 13 Name plate RFG9126 902 Outline drawing MFJ 014 Wiring diagram MADZ 821.27-1
GBCDG61EG101ZRCH IDMT 3 O/C OR 2O/C& 1 E/F RELAY WITH HI Technical Specification Model No - CDG61EG101ZRCH Relay Type - CDG61/CAG17(MRK-III) Application - 2 O/C + 1 E/F Case Size - 3D Horz C.T. Secondary - 5 Amp C.T. O/C Setting - 2.5 - 10 Amps. E/F Setting - 0.5 - 2 Amps Contacts - 2 N/O S/R Flag - Yes Frequency - 50 Hz Burden / D.M.T - 3 Va / 3 Sec High Set Type / Conts. - CAG17 / 2 N/O S/R Highset O/C Setting - 12.5 - 100 Amps. HighSet E/F Setting - 5 - 40 Amps Mounting - Flush Name Plate - RFG9126 903 Outline Diagram - MFJ 014 Wiring Diagram - MADZ821.31
Gbcdg61eg101zmch Idmt 3 O/c or 2o/c& 1 E/f Relay With Hi Model No : Cdg61eg101zm(M) Cdg61/cag17(Mrk-iii) Application - 3 O/c Burden / D.m.t - 3 Va / 3 Sec. C.t. Secondary - 5 Amp C.t. Case Size - 3d Horz. Contacts (S/r or H/r) - 2 N/o S/r Flag - Yes Frequency - 50 Hz High Set Type - Cag17 Highset Contacts - 2m S/r Highset O/c Setting - 12.5 - 100 Amps. Mounting - Flush O/c Setting - 2.5 - 10 Amps. Name Plate - Rfg9126 774 Outline Diagram - Mfj 014 Wiring Diagram - Madz821.31
Gbcdg61eg101znch Idmt 3 O/c or 2o/c& 1 E/f Relay With Hi Model No : Cdg61eg101zn(M) Cdg61/cag17(Mrk-iii) Application - 3 O/c Burden / D.m.t - 3 Va / 3 Sec. C.t. Secondary - 5 Amp C.t. Case Size - 3d Horz. Contacts (S/r or H/r) - 2 N/o 2 N/c H/r Flag - Yes Frequency - 50 Hz High Set Type - Cag17 Highset Contacts - 2m S/r Highset O/c Setting - 12.5 - 100 Amps. Mounting - Flush O/c or O/v Setting - 2.5 - 10 Amps. Name Plate Rfg9126 774 Outline Diagram Mfj 014 Wiring Diagram Madz821.32
GBCDG61EG102ZMCH IDMT 3 O/C OR 2O/C& 1 E/F RELAY WITH HI Model No : CDG61EG102ZMCH CDG61/CAG17(MRK-III) APPLICATION - 3 O/C BURDEN - 3 VA C.T. SECONDARY - 1 AMP CT. CASE SIZE - 3D HORZ. CONTACTS (S/R OR H/R) - 2 N/O S/R D.M.T - 3 SEC. FLAG - YES FREQUENCY - 50 HZ HIGH SET TYPE - CAG17 HIGHSET CONTACTS - 2M S/R HIGHSET O/C SETTING - 2.5 - 20 Amps. MOUNTING - FLUSH O/C SETTING - 0.5 - 2 Amps. Name Plate RFG9126 771 Outline drawing MFJ 014 Wiring Diagram MADZ821.31
GBCDG61EG058SGCH IDMT 3 O/C OR 2O/C& 1 E/F RELAY WITH HI Technical specification Relay model no - CDG61EG058SGCH Relay type CDG 61 Case size - 3D H 30T Application - 2 O/C & 1 E/F Current setting - O/C - 2.5 to 10 amps Contacts - 3 N/O S/R Output contacts - 2 N/O S/R C.T.Secondary - 5 amps Frequency - 50 Hz Burden / Taps - 3 VA / Std Operating time - 1.3 Secs Current setting - E/F - 0.5 to 2 amps High set - O/C Setting - 25 to 100 amps High set - E/F Setting - 10 to 40 amps High set / High set cont. - CAG 13 / 2 N/O S/R Name plate - RFG9125 903 Outline drawing - MFJ 014 Wiring diagram - MADZ 821.27-1
Minimum Quantity: 400,000,000 Gallons per Month Maximum Quantity: 800,000,000 Gallons per Month CIF Price: Gross USD $ 0.98GL / USD $ 0.96GL NET on CIF FOB Price: Gross USD $ 0.94 GL / USD $0.92 GL NET on FOB Rotterdam TRANSACTION PROCEDURE FOB DIP & PAY ROTTERDAM/ HOUSTON 1. Buyer accepts seller working procedure and issue ICPO to the End seller via Seller's representative. 2. Seller issues a commercial invoice and ICC Warning letter and Buyer signs and returns commercial invoice and ICC Warning letter on due date along with Buyer TSA. 3. The Seller issues following PPOP to buyer for evaluation: Statement of Product Availability IPA (Injection Programming Agreement) Letter of Guarantee Upon buyer verification and confirmation of the above PPOP Documents, buyer provide signed IPA (Injection Programming Agreement) with his tank company to engage injection Programming. 4. Seller provides buyer with Injection program, Fresh SGS, Injection Report and ATV (Physical Verification) with Unconditional DTA for Dip Test in seller tank for product reconfirmation before injection to buyer tank. 5. Buyer makes 100% payment by MT103 TT wire transfer for the total product and Seller pays commission to all intermediaries involved in the transaction within 24 hours after confirmation of the buyer's payment. 6. Seller issues draft SPA to the buyer to review for R&E monthly deliveries. 7. Buyer reviews and approves the SPA and issues SBLC/IRDLC irrevocable, non-transferable, auto revolving for 12 months shipment value, documentary letter of credit for length of contract and for each lift per schedule. Buyer pays after Dip Test by MT103 Wire Transfer one each monthly quantity. 8. The subsequent delivery shall commence according to the terms and conditions of the contract. 9. Seller pays commissions to all intermediaries as per IMFPA/NCNDA 24 hours after receiving payment from the buyer TRANSACTION PROCEDURE ON CIF 1. Buyer issues ICPO with this procedure incorporated on the ICPO along with Buyer's company registration certificate. 2. Seller Issues Sale & Purchase Agreement (SPA), and ICC warning letter Buyer review, amend (if necessary), signs and return the SPA in WORD format to Seller within 3 banking days. Seller sends final SPA to Buyer in PDF format; Buyer confirms final SPA and issues letter of acceptance of the final SPA. 3. Seller issues to Buyer via email the following transaction documents: A. Commitment to supply B. Statement of product availability C. ATSC, Buyer confirms the receipt of the documents by mail and issue confirmation letter within 24hrs
Minimum Quantity: 10,000 Metric Tons per Month Maximum Quantity: 50,000 Metric Tons Month CIF Price: Gross USD $420.00 MT NET / USD $ 410.00 MT on CIF TRANSACTION PROCEDURE FOB DIP & PAY ROTTERDAM/ HOUSTON 1. Buyer accepts seller working procedure and issue ICPO to the End seller via Seller's representative. 2. Seller issues a commercial invoice and ICC Warning letter and Buyer signs and returnscommercial invoice and ICC Warning letter on due date along with Buyer TSA. 3. The Seller issues following PPOP to buyer for evaluation: Statement of Product Availability IPA (Injection Programming Agreement) Letter of Guarantee Upon buyer verification and confirmation of the above PPOP Documents, buyer provide signed IPA (Injection Programming Agreement) with his tank company to engage injection Programming. 4. Seller provides buyer with Injection program, Fresh SGS, Injection Report and ATV (Physical Verification) with Unconditional DTA for Dip Test in seller tank for product reconfirmation before injection to buyer tank. 5. Buyer makes 100% payment by MT103 TT wire transfer for the total product and Seller pays commission to all intermediaries involved in the transaction within 24 hours after confirmation of the buyer's payment. 6. Seller issues draft SPA to the buyer to review for R&E monthly deliveries. 7. Buyer reviews and approves the SPA and issues SBLC/IRDLC irrevocable, non-transferable, auto revolving for 12 months shipment value, documentary letter of credit for length of contract and for each lift per schedule. Buyer pays after Dip Test by MT103 Wire Transfer one each monthly quantity. 8. The subsequent delivery shall commence according to the terms and conditions of the contract. 9. Seller pays commissions to all intermediaries as per IMFPA/NCNDA 24 hours after receiving payment from the buyer TRANSACTION PROCEDURE ON CIF 1. Buyer issues ICPO with this procedure incorporated on the ICPO along with Buyer's company registration certificate. 2. Seller Issues Sale & Purchase Agreement (SPA), and ICC warning letter Buyer review, amend (if necessary), signs and return the SPA in WORD format to Seller within 3 banking days. Seller sends final SPA to Buyer in PDF format; Buyer confirms final SPA and issues letter of acceptance of the final SPA. 3. Seller issues to Buyer via email the following transaction documents: A. Commitment to supply B. Statement of product availability C. ATSC, Buyer confirms the receipt of the documents by mail and issue confirmation letter within 24hrs 5. After completion of the above, Seller issues to Buyer product title transfer agreement, Buyer signs, and returns. Seller legalizes the joint Contract with the authorities in charge and sends to the buyer the legalized contract, the certificate of product title transfer, and then proceeds with the port & custom clearance of product and all internal routines operations accordingly.
Commodity: russian gas oil d2 0.2/62, gost 305-82 Origin: russia Quantity: 100, 000 mt spot trial shipment first month with possible rollover and extension Price: fob $280.00 usd gross / us$270.00 net per mt Cif $300.00 usd gross/$290.00 usd net per mt Grade: russian/international export blend Delivery: fob russian port/rotterdam and cif aswp Payment: sblc/mt103/tt for the value of the goods. Quality inspection: russ standard gost r quality and quantity analysis report at loading port while the inspection at discharge port will be performed by Societe general de surveillance (sgs) or ciq. Insurance: paid by seller, covering 110% of shipment value. (d) refinery commitment and assurance letter 4. Buyer submits his tsa/tsr/atv and terminal injection clearance report from verifiable tank farm Compliant to russian transneft delivery logistics for seller's verification and confirmation. 5. Seller commence injection of the commodity to loading port and upon completion of product injection, Seller issues below full pop documents to buyer A. Dta- dip test authorization B. Authorization to sell (ats) C. Tank storage receipt of product purchased D. Product passport E. Fuel injection report 6. Buyer conducts dip test on the product quality and quantity analysis. 7. Upon positive dip test result on the product quality and quantity analysis seller issues to the buyer Sgs report including title of ownership certificate of the product in buyer's name to be followed by all Export documentation. 8. Buyer makes payment covering total value of the product by mt103 and shipping commences immediately.
Below is detailed procedure for Rotterdam JET A1 fuel 1. Buyer issues ICPO according to Seller's Transaction Procedures with their banking details. 2. Seller issue commercial invoice of the product in tanks at the port; Buyer signs and return back the commercial invoice to the Seller along with MT199 3. Seller issue to buyer POP listed below and any more documents that the buyer need to verify the product: a. GPS coordinate-tank storage receipt (valid for 72 hours on weekdays) (TSR) with scanned barcode. b. Unconditional Dip Test Authorization Letter (DTA) c. Authorization to Sell and Collect d. SGS Report (Less Than 48 Hours old from Rotterdam branch) e. Authorization to verify the product for physical verification (ATV) f. Fuel injection Report at Rotterdam. 4. Buyer inspected by SGS on Buyer's expenses. (lf buyer choose to inspect again). *In case Buyer is satisfied with the above POP, buyer have the opportunity to make payment by MT103 and after successful title transfer buyer will provide logistics ( TSR, ATV & ATI ) to move the product. 5. Upon successful verification of the full POP documents, Buyer orders SGS Intertek or its equivalent team to conduct a dip test on the product in the Seller's tank at Buyer's expense. 6. Following the completion of the dip test, Buyer provides his storage receipt ( TSR, ATV & ATI ) to Seller, injection commences into Buyer's leased storage tanks and upon completion Of full injection, Seller issues to the Buyer with full injection report. 7. Buyer makes 100% payment by MT 103 TT wire transfer for the total product value and the Seller transfers the title to the Buyer along with all documentations. The Seller pays commission to all intermediaries involved in the transaction within 24 hours upon confirmation of Buyer' s payment. 8. Seller issues draft sales purchase agreement (SPA) to the Buyer for review for R&E monthly deliveries. 9. Buyer reviews and approves the SPA and issues SBLC/IRDLC irrevocable, non-transferable auto revolving for 12 monthly shipment value and documentary letter of credit for length of the contract and for each lift per schedule. Buyer pays after dip test by MT103 wire transfer on each monthly quantity. 10. The subsequent delivery shall commence according to the terms and conditions of the contract. Product origin- KAZAKHSTAN Where the product available now STORAGE TANKS IN ROTTERDAM AND HOUSTON Any recent SGS SEE PROCEDURE Which country of origin documents KAZAKHSATAN
Description:One piece 3-lead ECG Cable with leadwires,Grabber,AHA Compatibility:This one-piece ECG cable is for use with the following ECG monitors: Abbott Medical: EX-50, Lifecare 5100, Lifecare 5200; Air Shields: HRRM-71-1/2, Porta-Fib I, II, III, System5, System6; ALT: 800, 800Plus, CX ATL Ultrasound, CX200, CX400, Apogee, HDI 9/200, Interspec Cardiology XL, Mark IV, Mark Vii, Ultramark 4/5/7/9; BCI Biochem International: 3101, 3404, 6100, 6200, 9100, 9200, Advisor, Autocorr; Carewell CPM-8000; Colin: BP308, BP408, CBM3000; Criticare: 504US, 504USP, 506, 507, 507E, 507ELC2, 507S, 508, 602-4B, 602-4USP, 1100, 2200, Poet 2, Scholar; Edan: M8, M8A, M8B, M9, M9A; GE Medical: Corometrics 556, Critikon 8100T, Dinamap 8700/9700; IVY Biomedical:101 (before 1989), 402, 700; LSI: LS5, 261; MDE: Escort 100, 101, 102, 200, 300, Prism, 360SL, 450SL, 521A, PortaPak 80, PortaPak 90/1000; Mindray: MEC 200, MEC 1000, MEC 1200; Physio Control (Medtronic): Lifepak 5, Lifepak 6, Lifepak 6S, Lifepak 7, Lifepak 8, Lifepak 9, Lifepak 10, Physio 1440/R, VSM-1ESF, VSM-2, VSM-2ESF, VSM-3; Nellcor: N-200, N-250, C-LOCK, N-1000, NPB-3900, NPB-4000; Nihon Kohden: BSM-8301A, 8302A, 8500A, 8502A, OEC-6102A (s/n>20156), 7102A, 8108A, OEC-6105A (s/n>20226), TEC 5531E, TEC-7100A, TEC-5200A (s/n>20421), TEC-7200A, 7300A; Novametrix: 902, 903, 910, Life Defense 1; Pace Tech: Minipack 300, Minipack 3000/3100, MiniMax 4000CL, Vitalmax 800 Plus, 2100, 2200, 4000, 4100, Vitalmax 4000CL, 4000, Modular/4100CL; Palco; Philips: M3921A A1, M3923A A1, M3925A A1, M3927A A3, M3929A A3; Pioneer (American Optical): 26125, 33167, 5260, 5330, Pulsar 4; PPG (Datamedix, Becton-Dickinson): Guardian 1001, N1001; Siemens: Sirecust 300DU, Sirecust 610, Sirecust 630, Sirecust DU, Cypress Ultrasound; Spacelabs Burdick: Medic 3, Medic 4, Medic 5, Medic 6, Series 500, Series 600, Series 900 90300/90400/90600/90700 Series, TEK-208/408/511/512/514/521, PCMS; Tektronix (Vitatek): 4045 Defib/208/400/500 Series; Welch Allyn: Propaq 100, Propaq 200 Series, Atlas Propaq Encore, Propaq CS, Ultra Smart, PIC 30, PIC 40, PIC 50; Zoll: M Series, E Series R Series, PD1200, PD1400, PD1600, PD1700, D900, PD2000, OEM: 8000-0025, 9500-0229 OEM Criticare: 852, 853, 1073/S (3 Leads Snap) 1073/P (3 Leads Clip) 854, 1075/S (5 Leads Snap) 1075/P (5 Leads Clip) Zoll: 8000-0025-02
Hi this is mohammed from ( RAJEDIA PUMPS) We r manufacturer of (MECHANICAL SHAFT SEALS , TEFLON LINED , PP MOULDED & METALIC PUMPS ) manufaturer from india if there would any enquiry regarding for the same let us know on E-mail
GE FANUC 531X179PLMAKG1 Brand GE FANUC � Product origin USA Warranty 1 year DO Supply Warranty Included Shipping Worldwide shipping via DHL, UPS, Fedex, and TNT Payment T/T shipping port XIAMEN, CHINA Quick responseï¼? 24/7 Online Service MORE PRODUCTS SANYO FPBA RECHARGEABLE LI-ION BATTERY NSD CORPORATION NCV-20NGNVP SANYO SDN-DR1-025 NSK ESA-Y2020TF1-11 SANYO DENKI L720-012EL8 NSK ESA-Y2020GF1-11 SANYO DENKI PMAPA1S6B01 NUMATICS R880-03F SANYO DENKI PYRG015K1XXVP00 OHM PS-20T-R SANYO DENKI R720-012E18 E681000C30 OKUMA E0227-702-009 SASH 4IK60A-BF-E10 OKUMA E0227-702-008 SAT FAS-1000MC OMEGA OM-400 440 SBE M68CPU CPU OPTILOGTC OL2108 SBS PMC-3101-BP OPTILOGTC OL2109 SCHENCK VIBRODAU 4000 PS-410 OPTILOGTC OL2208 SCHLEICHER SCTUST21 OPTIMATE OP-1500 SCHLEICHER USP2I OPTIMATE INTERFACE OP-1500 SCHMERSAL TA471-02/02Y-H-840 OPTO 22 001818K AC24 AT SCREEN KCPU0018-00 OPTO 23 SNAP B3000 BRAIN SCS UFS-22 OPTO 24 SNAP-AIV SENSAPHONE WEB600 FGD-W600 OPTO 25 SNAP-AIV-8 SENTRY VREL-11M OPTO 26 SNAP-LCM4 M4SENET-100 SENTRY COMMANDER PT40-H404-2-02C OPTO 27 SNAP-LCSX-PLUS SEPRI AZ0113.0 OPTO 28 SNAP-PS5 SERVOLAND SMCM4-AI ORMEC SAC-SW210/E SEW MDV60A0110-5A3-4-00 MDX60A0110-503-4-00 ORMEC SAC-SW217/EP SAC-SW217/E SHARP JW-22PU OXFORD TL4 1128-426 TL41128-426 SICK S30A-6011BA PACIFIC SCIENTIFIC 6410-007-N-N-N
When I got up to go to the bathroom at 1 a.m. last Monday, my wechat phone rang. It was from Carl, the purchasing manager of Denison hydraulic pump company in the United States. I was very surprised by this phone call. Generally, we communicate with Carl in the form of e-mail and have never used wechat phone. Carl firstly said sorry to disturb my rest, and asked if I could arrange a video conference at 8:00 tomorrow morning. He needs to discuss a troublesome problem with our technical team. I'm concerned that the communication on the phone will not be clear, and asked him to send me a written email first, and then I'll reply to him. Half an hour later, a detailed email with a schematic diagram of the hydraulic system came in. Last week, the hydraulic pump supplied by them encountered problems with his customer. The customer's hydraulic system has been shelved for half a year, and now it needs to be driven. After the operator starts the hydraulic pump, there is no pressure in the hydraulic system. The field engineer judged that there was no flow output of the hydraulic pump, but after inspection, it was found that the rotation direction of the motor was consistent with that of the hydraulic pump, and the oil level, oil temperature and viscosity of the hydraulic pump met the working conditions. The suction system of the hydraulic pump was replaced, including the oil suction pipe and filter. After startup, there was still no flow output. The transmission parts inside the hydraulic pump are intact without falling off, fracture and blade jamming. A week has passed and no reason has been found. Because the hydraulic pump is still in the warranty period, if it cannot be solved in another week, it can only be returned for claim. Carl asked the original supplier of each part for the hydraulic pump and got nothing. After reading the email, I asked him if the hydraulic pump used a hydraulic check valve? Carl said that the hydraulic check valve was provided by HAWE company in the United States, but the after-sales period of the hydraulic check valve has expired. Because AAK supplied hydraulic check valves to their company last year, and the quality was very satisfying, although the hydraulic check valve in this hydraulic pump is not from AAK, he wants to see if AAK technical team can find out the reason. I said there was no problem with the 8:00 video conference tomorrow, because the chief engineer of AAK didn't travel, but I'm not sure if we can help. The next day in the video conference, their engineers showed the whole system. Our chief engineer found that the displacement of the hydraulic pump was 8ml / R, so he asked them to fill the hydraulic pump directly in the oil outlet pipeline, and then start it up. The hydraulic pump still had no flow.
At 05:10 this morning, I was listening to music and browsing emails. Billy, who had no news in 9 months, sent an email. Without reading the email, I could guess that the hydraulic check valve developed by AAK for 3 months last year had a result. Opening Billy's e-mail and it is an annual order of 5,000 hydraulic check valves at one time, with about 500 hydraulic check valves delivered every month. Billy is from a hydraulic equipment company in the United States, he has purchased a small number of high-pressure resistant hydraulic check valves from AAK in the past. At the beginning of last year, his company received complaints from a customer that its high-power bulldozers were prone to weak starting of the hydraulic system after being used in less than half a year. The after-sales engineer found that the hydraulic check valves leaked and can not maintain the pressure and caused the problem. Billy contacted the original manufacturer of the hydraulic check valves, and manufacturer advised that the system pressure of the high-power bulldozer exceeded 450bar, and the opening and closing frequency was also high. When the hydraulic check valve was in the high-pressure state above 450bar, the valve spool was worn quickly, and the service life could only be guaranteed as 1 million times. Therefore, it was normal to replace the hydraulic check valves every half a year. If you want a hydraulic check valve with a service life of 2 million times, you can only purchase it from German HAWE. Billy has no choice but to make do with the hydraulic check valves of the original manufacturer first, but the after-sales cost every half a year is really unbearable. Maybe other manufacturers can offer hydraulic check valves with service life more than 1 million times. Billy began to contact other factories, including AAK. After receiving Billy's email, AAK engineers had reached a conclusion according to the hydraulic check valve drawings and bulldozer working parameters. In order to exceed the service life of 2 million times of the hydraulic check valves, we can only test new high-pressure resistant materials. We replied Billy at that time that according to the existing steel options of AAK, what your original manufacturer said was right, it can only guarantee the service life of 1 million times of the hydraulic check valves. However, we are confident to develop the one of 2 million times, because we have our own R & D experience in anti-high pressure. Billy replied directly that AAK would be given 3 months to sample the hydraulic check valves with pressure resistance above 450 bar. He also frankly informed that two other hydraulic check valve manufacturers were also making samples. If all manufacturers fail, they can only buy high-pressure hydraulic check valves from German HAWE. Three months later, AAK successfully sent 20 hydraulic check valve samples to Billy. Nine months later, the email came from Billy today.