Low-pressure manual ultra-pure diaphragm valve

• Main Authors: LIU SHENGYU, HAN LIXIA, WEI FANG
• Format: Patent
• Language: Chinese; English
• Published: 27.05.2022
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model discloses a low-pressure manual ultra-high-purity diaphragm valve which comprises a valve seat and a valve device arranged in the valve seat, and the top end of the valve seat is rotationally connected with an ultra-high-purity diaphragm installer. According to the low-pressure manual ultra-high-purity diaphragm valve, the totally-closed valve seat is adopted, the water inlet channel and the water outlet channel are integrally formed in the valve seat, so that the ultra-high-purity diaphragm valve has anti-expansion and anti-pollution capacities, the junction of the water inlet channel and the water outlet channel is arranged to be an arc face, the arc face is consistent with the radian of the valve head, and the valve head is closed by rotating the hand wheel. The valve head and the ultra-pure diaphragm are in contact and extrusion to deform and are in close contact with the cambered surface, so that the sealing performance of the ultra-pure diaphragm valve is better; when the ultra-high-pu