Api swing check valve:class 150, class 300, class 600, class 900, class 1500, class2500 Api piston-lift type check valve:class 150, class 300, class 600, class 900 Api high pressure check valve: class 1500, class2000, class 2500 Body: wcb, a315 cf8, a351 cf3, a351cf8m, a351 cf3m Stem: wcb, a315 cf8, a351 cf3, a351cf8m, a351 cf3m Packing, gasket: flexible graphite+stainless steel strip(net) Applicable medium: water, oil, steam, nitric acid, strong oxidizing medium, acetic acid, urea category Check valve: pn1.5-10mpa dn15-300 150-2500lb 1/2-42. Package: wooden crate or according to customer's requirements.
