Sight glass Type Drain Valve

Application

◎Sight glass Type Drain Valve is used to protect the flow through pipes, pumps, accessories, especially irrigation safety equipment.
◎Sight glass Type Drain Valve design of health and safety, prevent dangerous and equipment failure due to the pressure induced, exterior design with a transparent window can be observed in the overflow, pressure setting can be achieved through the upper hand wheel can be, can debug through external pressure gauge can be clearly see
◎Full stainless steel, the valve is the best choice for protection equipments in diary,food, beverage, pharmacy and fine chemical industries.

Operating Principles

◎The valve is normally closed.
◎Pressure is set by calibrating the spring with pressure nut.
◎When the pressure in the pipe exceeds to the specify pressure, in order to reduce pressure the valve open automatically to make the liquid out 

Technical Specifications

◆Size：1"-2",DN25-DN50
◆KV Value：8.5-49m3/h
◆Max. temperature：130℃(EPDM)/266℉
◆Set-pressure：(0-3bar/0-6bar/6-10bar）
◆Material：304/316L
◆Certification: safety valve manufacturing license for special