| Details : | Dear Sirs,
Good day
HD VALVE - Nanjing International Marine Equipment & Spares Ltd., is a leading manufacturer of inlet/exhaust valve spindles, valve seats and valve guides for 4- stroke engines in China. We have won world class engine makers’ approval such as MAN, Yanmar & Daihatsu etc. Our prestigious cooperative partners in China include Guangzhou Diesel Engine Factory, Anqing CSSC Diesel Engine Co., Ltd., Ningbo C.S.I Power & Machinery Group Co., Ltd. Zibo Diesel Engine Parent Company, Qingdao Zichai Boyang Diesel Engine Co., Ltd., Shaanxi Diesel Engine Heavy Industry Co., Ltd. etc.
In the past years MAN Diesel has authorized over 10 factories in China to manufacture its 4-stroke engines such as L16/24, L21/31, 23/30, 23/30H, 28/32, 28/32H, 27/38, 32/40 etc. and HD VALVE has been approved by these licensees of to supply inlet/exhaust valves, seats and guides for them..
- HD VALVE vs. other Chinese engine valve producers
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Category
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HD VALVE
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Other Chinese producers
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Chinese Engine maker’s approval
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Over 80% domestic engine makers
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None
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World class Engine maker’s approval
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DAIHATSU,YANMAR,MAN,PIELSTICK,WARTSILA
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None
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European market
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Started from 2003, 100% follows original design and material, including Nimonic valves. Turnover over 1 million Euro in 2012.
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Material and techniques not 100% original
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Nimonic valves
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HD valve is capable of producing Nimonic valves since 2007.
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Most factories cannot handle & process nimonic material
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Lead time
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7-15 days
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20-30 days.
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- List of Approved Licensees of Engine makers
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Licensee of Engine Maker
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Engine Maker
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Year Started
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Engine models
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Shanxi Diesel Engine Heavy Industry Co. Ltd.
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MAN
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2010
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MAN: V/L32/40,L27/38, L21/31,L16/24
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PIELSTICK
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PIELSTICK: PC2-6,PC2.5-400,PA6V280
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DAIHATSU
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DAIHATSU:DK-28,DK-20
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Zibo Diesel Engine Parent Company
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YANMAR
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2006
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YANMAR: N330-EN/UN
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Guangzhou Diesel Engine Factory.
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Chinese Engine Maker
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1998
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320 Series,G32 Series,G26 Series
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Ningbo C.S.I. Power & Machinery Group Co.Ltd.,
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Chinese Engine Maker
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2003
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G300,G320,330
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- Catalogue of MAN valves, seats & guides
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Engine Model
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Description
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P/N
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Remark
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L16/24
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Inlet valve spindle
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274
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Exhaust valve spindle
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262
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Nimonic available
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Inlet valve seat
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123
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Exhaust valve seat
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184
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Inlet/exhaust valve guide
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L21/31
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Inlet/Exhaust valve spindle
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274
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Inlet valve seat
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123
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Exhaust valve seat
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184
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L27/38
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Inlet/Exhaust valve spindle
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274
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Exhaust valve spindle
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262
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Nimonic available
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Inlet valve seat
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123
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Exhaust valve seat
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184
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L32/40
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Inlet valve spindle
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113.04.010
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Exhaust valve spindle
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114.03.012
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Nimonic available
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Inlet valve seat
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055.10.028
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Exhaust valve seat
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055.10.031
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L23/30,6T23LH
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Inlet/Exhaust valve spindle
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5518/4262
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Exhaust valve spindle
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5518/4262
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Nimonic available
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Inlet valve seat
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4445/4346
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Exhaust valve seat
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4442/4344
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Inlet/exhaust valve guide
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3374/3375
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L23/30H
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Inlet/Exhaust valve spindle
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512
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Exhaust valve spindle
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512
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Inlet valve seat
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064
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Nimonic available
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Exhaust valve seat
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076
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Inlet/exhaust valve guide
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218
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28/32A,L28/32H
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inlet valve spindle
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60502-21H/12
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Exhaust valve spindle (with R-wing)
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1616-03-C10
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Nimonic available
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Inlet valve seat
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L28-06-05
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Exhaust valve seat
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L28-06-04
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Inlet/exhaust valve guide
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- List of Nimonic valve spindles
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ENGINE MAKER
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ENGINE MODEL
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MAN
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L32/40,L21/31,L16/24,L28/32H,23/30H
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DAIHATSU
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DKM-28,DKM-20,DL-22,DL-20
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YANMAR
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N330,N260,N21,N18,EY26,EY18
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WARTSILA
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46,38,32,22,20
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SULZER
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ZL40/48,ZAV40S,ATL25,AL20,S20
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PIELSTICK
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PC2.5L/V,PA6V280
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DEUTZ, MAK
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DEUTZ 540/640, 628, 528;MAK551,453,M32
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- MAN Design of inlet & exhaust valve
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Description
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Material
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Surface treatment
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Hardness
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Inlet/exhaust valve
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40Cr10Si2Mo
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STELLITE
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Exhaust valve
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Nimonic(N80A)
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Special hardening
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≥450HV
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Comments:
Nimonic(N80A) is the proper material for heavy oil. The minimum working hours for Nimonic(N80A)valves are 8000-12000 hrs.
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