What material does B3 refer to in the body of the valve?. Thank you
Ordinary body (pressure 30 MPa), with Q235 hot rolled plates or forgings can be. High pressure, pressure changes in the valve block can be used 45# steel, or 40Cr, it is best to quenching and tempering treatment, at least normalizing. Rustproof
High pressure, pressure changes in the valve block can be used 45# steel, or 40Cr, it is best to quenching and tempering treatment, at least normalizing. Rustproof
Ordinary body (pressure 30 MPa), with Q235 hot rolled plates or forgings can be.
