Q: manual drain valve switch principle: answer: a: drain valve closing process: 1. Clockwise rotate the drain valve, the valve stem help and valve core down, already at the end of that at this point the system pressure is low, the set of the orifice on the plane or surface gradually decreases, and the size of the guide sleeve close to the seat, and change the media flow, medium after throttling at a certain speed through the valve core and valve tightly closed surface, gradually increasing the tightly closed surface cleaning power. 3. Then turn the handwheel counterclockwise, valve core progressive position moves to the whole paper, at this point, the medium pressure greatly reduced, and quantity of impurities can be directly from the set of orifice discharge, and at the formation of eddy current, the inversion tightly closed keep cleaning tightly closed surface, avoid impurity paste on the tightly closed. 3. Then turn the handwheel, valve core and tightly closed contact. 。 2. Then turn the handwheel counterclockwise, valve progresses Marine valve core movement, the diversion on orifice removed the seat inside the cavity, more media through guide seat and Industrial Valves throttle set no difficulty after discharge. 2: open drain valve ( Blowdown process) 1. Anticlockwise turn the handwheel stem up gradually, help and valve core tightly closed off and on the valve core training gradually removed from the valve seat inner hole, narrow gap gap formation, medium through symmetric orifice on the seat into the seat inside, small medium can be through the slit flow, gradually reduce the system pressure. 2. Then turn the handwheel, the guide seat into the seat on the valve core hole, form the narrow gap throttling, because near the end of that medium has fewer impurities, the guide sleeve and the narrow gap between the seat hindered the nuances of residual impurities into the tightly closed surface, the medium flow rapidly through the narrow gap, completely eliminate tightly closed surface, security deputy contact tightly closed to achieve zero leakage. A successful implementation tightly closed. Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. The factory provides professional ball valve, butterfly valve, gate valve, globe valve, check valve, relief valve, safety valve, Marine valve, oil Industrial Valves, hydraulic control valve and other kinds of valves.
It has become necessary for Shenzhen Mech Valve Trading Co., Ltd. to continually cultivate, develop and update their skills to work successfully alongside high-tech.
If you already use wedge gate valve elsewhere or want the ability to offer restricted chat access to certain individuals, flanged gate valve cast iron valve offers you the most flexibility.
The development of os gate valve resilient wedge gate valve products has massive potential for expansion.
Deeper connections between Shenzhen Mech Valve Trading Co., Ltd. and customers can be made when we're thinking out of the box and meeting outside of manufacturing work.