Ggg50 is not breakable ductile iron and we can use flanged gate valve that material
The difference between the GGG-40 and GGG-50 butterfly valve is the suitable temperature. The GGG-40 is recommended for 45 degrees C to 150 degrees C and the GGG-50 is recommended for 35 degrees C to 130 degrees C.
God's Gear's Good GGG ALL THE WAY
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