Manual worm drive control

Normal diameter: DN40-DN300

Working temperature: more than 100°C

Material: ductile iron, gray casting iron, or casting steel

Valve stem: 2Cr13 stainless steel/carbon steel

Sealing ring: NBR/FPM

Suitable to water and oil

Manufacturing standard: GB/T13927-92

Flange standard: GB/T12238-89

Clamp type