Dn50-2inch-PTFE-Lined Semi Lug Style Stainless-Steel Pneumatic Actuated Butterfly Valve-Positioner

Dn50-2inch-PTFE-Lined Semi Lug Style Stainless-Steel Pneumatic Actuated Butterfly Valve-Positioner

* Nominal Diameter: 24inch
* Class Pressure: 300LB
* Connection type: LUG ends
* Operator way: Gear opreated
* Suitable Temperature : -29℃ ~ 420℃
* Design standard: as per API609

Product Details

Our vision is to continue to innovate and provide core competitive advantages of our LUG Double Offset Butterfly Valve, Wafer Triple Offset Butterfly Valve, API Butterfly Valve to help our customers succeed. Our ultimate goal is to rank as a top brand and to lead as a pioneer in our field. Our company has become a global manufacturing company while founded in China, facing the world. Our company has been establishing and maintaining close cooperation with suppliers, constantly providing customers with high-quality products and technical services.

【Product Introduction

Zhengfeng vlave is a professional High pressure butterfly valve factory.Our main product LUG style butterfly valve is one kind of component used to realize on-off and flow control of pipeline system, which has been widely used in many fields such as petroleum, metallurgy, hydropower, etc.

In order to improve the ability of anti erosion and wear of ultra-high pressure valves, anti erosion materials are usually selected.For materials used in high pressure valves, heat treatment and surface hardening are usually used to improve their extrusion and erosion resistance.


【Application Range】

* Valve Diameter: 2‘’~64‘’,DN50~DN1800

* Valve Pressure: 150LB~600LB,PN6~PN100

* Connection type:Flange、Wafer、LUG、Butt weld

* Main Material: Cast steel、Stainless steel、Duplex steel、Monel、etc..

* Operator way: Lever o.p、Gearbox、Electric actuator、Pneumatic actuator...

* Design features: Composite materials adhered by multilayer-metal and Graphite

* Design standard:API 609 、 EN593 、 GOST12815、JB8527、JIS B2002


微信图片_20191017145604QQ图片20191114174755


【ZFV Seat Features

If the system requires a higher temperature, We zhengfeng valves has two types metal seated , the one is sealing seat graphite and graphite laminated, the other one is metal to metal sealing.

The high temperature butterfly valve body with lined disc and seat is made of duplex stainless steel or other alloy steel which suitable for high temperature, the sealing surface overlay wear resistanced material, and the shaft is made of heat-resistant stainless steel. High temperature butterfly valve has good performance of high strength, wear resistance and corrosion resistance.


We are a technology-oriented large-scale Dn50-2inch-PTFE-Lined Semi Lug Style Stainless-Steel Pneumatic Actuated Butterfly Valve-Positioner company integrating R&D, operation and service. We intention to get a top class supplier for worldwide OEM and aftermarket! Our company will adhere to 'Quality first, perfection forever, people-oriented, technology innovation' business philosophy.

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