ZMQ, ZSQ Pneumatic Diaphragm (Piston) Cut off Valve

ZMQTheZSQPneumatic film(piston)shut-off valve

Overview

ZMQTheZSQThe pneumatic diaphragm (piston) cut-off valve adopts a top guide structure and is equipped with a multi spring actuator. Featuring a compact structure, light weight, and responsive fluid channelsSAdvantages such as streamlined design, low pressure drop loss, large valve capacity, and easy disassembly and assembly. The actual shut-off valve receives signals from the regulating instrument, and effectively disconnects, opens, or changes the flow direction of the medium to achieve automatic control of process parameters such as pressure, flow rate, and liquid level. Widely used in the production process automatic control and transportation control systems of various industrial sectors such as petroleum, chemical, metallurgical, power, light industry, textile, etc.

This series of products comes in two types: film type and piston type. There are three types of valve body structures: single seat, sleeve, and double seat (two position three-way). The sealing forms include packing sealing and bellows sealing. The nominal pressure rating of the product isPN10、16、40、46Four types, nominal caliber rangeDN20～200mmThe applicable fluid temperature is determined by-60～450℃. The leakage level isIVGrade orVIGrade. The traffic characteristic is fast opening.

Product Features

◆ The cut-off valve adopts a spring actuator and a regulating mechanism connected by three vertical connections, which can reduce the height of the order by about305The weight can be reduced by about30%.

◆ The valve body is designed according to the principles of fluid mechanics as a low flow resistance channel with equal cross-section, increasing the number of rated flow systems3%.

◆ There are two types of sealing parts for valve internals: tight type and soft seal. The tight type is made of stacked hard alloy welded like a mountain, while the soft seal type is made of materials with excellent sealing performance when closing.

◆ The balanced valve internals have increased the allowable pressure difference of the actual shut-off valve.

◆ The bellows sealing type forms a complete seal for the moving valve stem, blocking the possibility of medium leakage.

◆ Piston type actuator, with high operating force and large pressure difference.