PTFE Lined Diaphragm Valve

  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Zhejiang

  • Validity to:

    Long-term effective

  • Last update:

    2019-10-28 21:57

  • Browse the number:

    265

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Company Profile

NX Tech Co., Ltd

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Contact:nengxiangkeji(Mr.)  

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Area:Zhejiang

Address:Zhejiang

Website:http://www.cnnxtech.com/ http://nengxiangkeji.cnzhongqi.com/

Product details

Product Introduction

PTFE lined diaphragm valves are a special form of shut-off valve that appeared in the 1920s. Its opening and closing member is a diaphragm made of soft material, which separates the valve body cavity from the bonnet cavity and the driving member, so it is called a diaphragm valve.


Structure features:

The most prominent feature is that the diaphragm separates the lower valve body cavity from the upper valve cover inner cavity, so that the valve stem, valve disc and other parts located above the diaphragm are not corroded by the medium, the packing sealing structure is omitted, and the medium leakage is not generated. .

1. The diaphragm made of soft seal such as rubber or plastic has good sealing performance. Since the diaphragm is a consumable part, it should be replaced periodically depending on the characteristics of the medium.limited by the diaphragm material, the diaphragm valve is suitable for low pressure and relatively low temperature.

2. Diaphragm valves can be divided into six types according to the structure: house type, direct current type, cut-off type, straight-through type, ram type and right angle type. Generally, the flange connection can be divided into manual, electric and pneumatic according to the driving mode. Among them, the pneumatic drive is divided into three types: normally open, normally closed and reciprocating.

3. 4. Generally not suitable for pipelines with temperature higher than 60 °C and conveying organic solvent and strong oxidizing medium, nor for use in high pressure pipelines. The diaphragm valve is a fluid system of 1.3×10-5~2.5X106Pa. A valve used to open or block airflow.


Main performance of PTFE lined diaphragm valve:

Leakage rate: ≤1.3×10-5Pa. L/S

Material: 304, 316L

Working medium: gas, water, oil

Working temperature: fluoro rubber -30 °C ~ +150 °C

Principle: using compressed air as the power to drive the transmission screw, so that the valve core moves up and down, at the same time Pull the diaphragm up and down to close and open it. Features: compact structure, simple, small size, beautiful appearance, switch, guide, smooth movement, small closing torque, long life, ≥300,000 diaphragm compression can be automatically adjusted, uniform pressure, sealed reliable diaphragm into the valve core Push-in type, easy to replace


Parameters and Dimensions:


Product Advantages

The most prominent feature is that the diaphragm separates the lower valve body cavity from the upper valve cover inner cavity, so that the valve stem, valve disc and other parts located above the diaphragm are not corroded by the medium, the packing sealing structure is omitted, and the medium leakage is not generated. .


Supply Ability:

5000 Pieces per Month


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