ZDF nitrogen sealing device

NegotiableUpdate on 06/03

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Overview

ZDF nitrogen sealing device

Product Details

ZDF nitrogen sealing device

The ZDF series nitrogen sealing device is a self operated micro pressure control system independently developed and researched by our company. It is mainly used to maintain a constant pressure of the protective gas (usually nitrogen) at the top of the container, in order to avoid direct contact between the materials in the container and the air, prevent material volatilization, oxidation, and ensure the safety of the container. Specially suitable for gas seal protection systems of various large storage tanks. This product has the characteristics of energy saving, sensitive action, reliable operation, and easy operation and maintenance. Widely used in industries such as petroleum and chemical.

The nitrogen sealing device is easy to set for nitrogen supply and release pressure, and can be operated under continuous production conditions. The pressure detection diaphragm has a large effective area, a small set spring stiffness, sensitive action, and stable device operation;

Standard specifications

Form Type	Nitrogen Sealed Unit
Nominal diameter Body Size	DN15-DN200(1/2-18)
Nominal Pressure Body Ratings	PN10、16、20、25、40、50、64 ANSI150#、300#
Body&Bonnet Material for Valve Body and Cover	WCB, CF8, CF8M, CF3, CF3M, WC1, WC6, WC9, LCB, LCC, LC3, Ha Shi C
Packing Packing	V-PTFE/Flexible Graphite
Gasket gasket	GRAP+304, GRAP+316，PTFE
Connection method: Connections	Welding type (SW, BW)/flange type (RF, MFM) Flanged (RF, MFM)
Coating Color	Brown painting/Stainless steel valve body can be left unpainted. No painting on stainless steel valve body
pressure adjustment range Pressure regulating scope (KPa)	0.1-0.3 0.2-0.35 0.3-0.5 0.4-5.5 5-15 6.5-20 10-30 15-40 25-50 40-80, etc. (The range of high voltage and special adjustment depends on the actual situation) high pressure and special regulating scope shall be decided according to practical situations)

Note: The above are only standard combinations, and specifications outside of this table are also possible depending on the operating conditions.