材料组合代码

Material code

泵体

Casing

衬套

Insert

适用范围

Using range

W1

HT200

Cast iron

稀土铜钼球铁

Special modular

Cast iron

可低压输送润滑性较差，黏度适当的液体，如燃油等

Used to pump the medium（such as fuel oil）with less lubricant and suitable viscosity at lower pressure

W2

HT200

Cast iron

Z1109

Cast Al

可低压输送润滑性好，黏度适当的液体，如润滑油等

Used to pump the medium（such as lubricant oil）with better lubricant and suitable viscosity at lower pressure

W3

QT450-10

Nodular cast iron

Z1109

Cast Al

用于特殊场合（如船用泵）低压输送润滑性较好，黏度适当的液体，如润滑油等Used in particular case such as marine pump，to pump the medium（such as lubricant oil）with better lubricant and suitable viscosity at lower pressure

W4

QT450-10

Nodular cast iron

稀土铜钼球铁

Special modular

Cast iron

用于特殊场合（如船用泵）低压输送润滑性较差，黏度适当的液体，如燃油等Used in particular case such as marine pump，to pump the medium with less lubricant and suitable viscosity at fuel oil at lower pressure

W21

HT200

Cast iron

ZCuSn5Pb5Zn5

Special bronze

可在较高压力下输送润滑性较差，粘度较低的液体，如重油、燃油等。Used to pump the medium with less lubricity and lower viscosity，such as heavy oil and fuel oil

W23

Qt450-10

Nodular cast iron

ZCuSn5Pb5Zn5

Special bronze

用于特殊场合（如船用泵）有较高压力下输送润滑性较差，粘度较低的液体，如重油、燃油等。Used in particular case，such as marine pump，to pump the medium with less lubricity and lower viscosity，such as heavy oil and fuel oil，at higher pressure