Rotary Part Of Customized Metal Bellow Mechanical Seal AS-B232

Background Knowledge：
Selection of Common Materials for Mechanical Seals of Asphalt Pumps

Clear water; normal temperature; (rotary face) 9Cr18, 1Cr13 surfacing cobalt-chromium-tungsten, cast iron; (stationary seat) impregnated resin graphite, bronze, phenolic plastic.

River water (including sediment); normal temperature; (rotary face) tungsten carbide, (stationary seat) tungsten carbide

 Seawater; room temperature; (rotary face) tungsten carbide, 1Cr13 surfacing cobalt-chromium-tungsten, cast iron; (stationary seat) immersion resin graphite, tungsten carbide, cermet;

Superheated water 100 degrees; (rotary face) tungsten carbide, 1Cr13 surfacing cobalt-chromium-tungsten, cast iron; (stationary seat) immersion resin graphite, tungsten carbide, cermet;

Gasoline, lubricating oil, liquid hydrocarbon; normal temperature; (rotary face) tungsten carbide, 1Cr13 surfacing cobalt-chromium-tungsten, cast iron; (stationary seat) immersion resin or tin-antimony alloy graphite, phenolic plastic.

Gasoline, lubricating oil, liquid hydrocarbon; 100 degrees; (rotary face) tungsten carbide, 1Cr13 surfacing cobalt-chromium-tungsten; (stationary seat) immersion bronze or resin graphite.