Danfoss SNV-ST, SNV-SS Data sheet

Data Sheet

Gauge valve

Type SNV-ST and SNV-SS

For servicing of heavy-duty industrial refrigeration applications

SNV stop gauge are designed as service valves with a very sturdy construction. SNV-ST are made in steel approved for low temperature operations, SVA-SS are stainless steel versions.

SNV valves have internal backseating (metal to metal), enabling the spindle seal to be replaced while the valve is still under pressure.

SNV-ST and SNV-SS are available in standard branch length con€guration as well as extended branch con€guration, with extension length versions from 50 to 150 mm.

AI244986497087en-001002

Gauge valve, type SNV-ST and SNV-SS

Features

•Applicable to HCFC, non ‚ammable HFC, R717 (Ammonia), R744 (CO2) and hydrocarbons

•Suitable for "heavy duty" industrial applications including high pressures and wide temperature range

•The SNV-ST and SNV-SS valves have backseating (metal to metal)

•Compact and light valve for easy handling and installation

•No special ‚ow direction required

•Provide high ‚ow characteristics

•Each valve type is clearly marked with type and size

•Housing and bonnet material is low temperature steel (stainless steel for SNV-SS) according to requirements of the Pressure Equipment Directive and other international classi€cation authorities

•Valve safety is enhanced with the spindle being secured such that it cannot be unscrewed

•Standard versions available with Max. operating pressure ranges:

◦52 bar g / 754 psig Valves

◦65 bar g / 943 psig Valves

•Full temperature range:

◦-60 – 150 °C (200°C) / -76 – 302 °F (392°F)

•Classi€cation: DNV, CRN, BV, EAC etc.

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Gauge valve, type SNV-ST and SNV-SS

Portfolio overview

SNV-ST and SNV-SS o†ers numerous con€gurations and connections as well as versions for high-pressure applications, as shown in table.

Versions with di†erent properties may be produced to order. Contact Danfoss for further information about made to order products.

Figure 1: SNV-ST		Figure 2: SNV-SS

Table 1: SNV-ST and SNV-SS options

	Description	SNV-ST	SNV-SS
	Con€guration	Standard	Standard
		Extended branch	Extended branch
	Valve body/connection material	Steel	Stainless steel
	Equipment	Cap	Cap
		Handwheel
		ANSI/ASME B1.20.1
		DIN 3861	ANSI/ASME B1.20.1
		DIN 3901
	Connection standard		EN 10220
		EN 10220
			ISO 228-1
		ISO 228-1
		ISO 7-1
		Butt weld
		Cutting ring	Butt weld
	Bottom branch connection type	G	G
		NPT	NPT
		R
		Cutting ring
		G	G
	Side branch connection type	NPT
			NPT
		Rc
		UNF
	Special connections	Manometer connection	Manometer connection
	Max working pressure [bar]	52 bar	52 bar
		65 bar	65 bar
	Max working pressure [psig]	754 psig	754 psig
		943 psig	943 psig
	Packing format	Multi pack	Multi pack
		Industrial pack	Industrial pack

NOTE:

Not all combinations are possible. For an overview over standard code number properties, refer to Ordering chapter.

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Gauge valve, type SNV-ST and SNV-SS

Media

Refrigerants

SNV-ST and SNV-SS valves are currently authorized by Danfoss for use with more than 70 R-numbers HCFC, non- ‚ammable HFC, Ammonia, CO2 and hydrocarbons.

New refrigerants

Danfoss products are continually evaluated for use with new refrigerants depending on market requirements.

When a refrigerant is approved for use by Danfoss, it is added to the relevant portfolio, and the R number of the refrigerant (e.g. R513A) will be added to the technical data of the code number. Therefore, products for speci€c refrigerants are best checked at store.danfoss.com/en/, or by contacting your local Danfoss representative.

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