65 bar version for all industrial refrigeration and heat pump applications
The new 65 bar SVL range for Industrial
Refrigeration and Heat Pumps is based on the
successful modular Standard SVL platform. The
same exibility, simplicity and eciency are
features oered in this new series.
The SVA valves are designed to give favorable
ow characteristics and are easy to dismantle
and repair when necessary. The valve cone is
designed to ensure perfect closing and
withstand a high system pulsation and
vibration, which can be present specically in
the discharge line.
The valves are available from a parts program
consisting of:
• Valve housing with DIN or ANSI butt-weld
connections and DIN or ASME hard soldering
(brazing) connections in angle or straightway
and in a variety of sizes
• The function module in Standard neck (SVAS) and Long neck (SVA-L)
Further, SVA-S is available as complete valves
with ANSI butt-weld connection.
Function modules (Top Complete) for the SVA
Stop valves DN 50 to DN 100 are available in a
special high temperature version called
SVA-65BT.
AI377236007167en-000301
Shut-o valves, type SVA-S and SVA-L, 65 bar
Features
• Modular Concept:
◦ Each valve housing is available with DIN and ANSI butt weld connection and in several diferent sizes
◦ Possible to convert SVA-S or SVA-L to any other product in the FlexlineTM SVL family (regulating valve, check &
stop valve, check valve or strainer) just by replacing the complete top part
• Fast and easy valve overhaul service. It is easy to replace the top part and no welding is needed
• Optional accessories:
◦ Heavy duty industrial hand wheel for frequent operation
◦ Cap for infrequent operation
• Available in angleway and straightway versions with Standard neck or Long neck (DN 15 to DN 40) for insulated
systems
• Each valve type is clearly marked with type, size and performance range
• The valves and caps are prepared for sealing, to prevent operation by unauthorized persons, using a seal wire
• Internal metal backseating:
◦ DN 6 - 65 (¼ - 2
• Internal PTFE backseating:
◦ DN 80 - 200 (3 - 8 in)
• Can accept ow in both directions
• Housing and bonnet material is low temperature steel according to requirements of the Pressure Equipment
Directive and other international classication authorities
• Classication: DNV, CRN, BV, EAC etc. To get an updated list of certication on the products please contact your
local Danfoss Sales Company
Applicable to HCFC, HFC, R717 (Ammonia) and R744 (CO2). For further information please see installation guide for
SVA.
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 specic
refrigerants are best checked at store.danfoss.com/en/, or by contacting your local Danfoss representative.
The valve cone can be turned on the spindle, thus there will be no friction between the cone and the seat when the
valve is opened and closed and the special design will avoid cone spin due to pulsation and vibration when the
valve is in open position. A teon tightening ring provides perfect sealing with minimum closing force.
Spindle
Made of polished stainless steel, ideal for leap seal sealing.
Packing gland
The low temperature packing gland ensures a perfect tightness. The packing glands are equipped with a scraper
ring to prevent penetration of dirt and ice into the packing gland.
Table 1: Technical data
Installation
Figure 1: Example of Marking Ring
The valve is designed to withstand high internal pressure. However, the piping system in general should be
designed to avoid liquid traps and reduce the risk of hydraulic pressure caused by thermal expansion.
It is recommended that the valves be installed in the direction of ow indicated by the arrow on the valve body. The
valve can be installed in the opposite direction but this slightly reduces the kv-value (Cv-value).
Maximum opening and closing pressure dierential (for sizes 100 to 200)
Figure 2: Flow direction
The maximum opening pressure dierential is equal to the maximum pressure dierence between inlet and outlet
in the ow direction where the valve can be opened using normal hand force without damaging the valve.
The maximum closing pressure dierential is equal to the maximum pressure dierence between inlet and outlet in
the ow direction where the valve is sealing according to specications.
The maximum opening and closing pressure dierentials are as default equal to the maximum operating pressure
(PS or MWP) for valve sizes up to and including DN 50.
For valve sizes of DN 65(80) or larger than DN 65(80) the opening and closing pressure dierential depends on the
ow direction as shown below. Note that the default ow direction indicated by the ow arrow is P1 -> P2.
The list contains all certicates, declarations, and approvals for this product type. Individual code number may have
some or all of these approvals, and certain local approvals may not appear on the list.
Some approvals may change over time. You can check the most current status at danfoss.com or contact your local
Danfoss representative if you have any questions.
Valid approvals
Pressure Equipment directive (PED)
SVA valves are approved according to the European standard specied in the Pressure Equipment Directive and are
CE marked. For further details / restrictions - see Installation Instruction.
Danfoss oers a wide range of support along with our products, including digital product information, software,
mobile apps, and expert guidance. See the possibilities below.
The Danfoss Product Store
The Danfoss Product Store is your one-stop shop for everything product related—no matter where
you are in the world or what area of the cooling industry you work in. Get quick access to essential
information like product specs, code numbers, technical documentation, certications, accessories,
and more.
Start browsing at store.danfoss.com.
Find technical documentation
Find the technical documentation you need to get your project up and running. Get direct access to
our ocial collection of data sheets, certicates and declarations, manuals and guides, 3D models
and drawings, case stories, brochures, and much more.
Start searching now at www.danfoss.com/en/service-and-support/documentation.
Danfoss Learning
Danfoss Learning is a free online learning platform. It features courses and materials specically
designed to help engineers, installers, service technicians, and wholesalers better understand the
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Create your Danfoss Learning account for free at www.danfoss.com/en/service-and-support/learning.
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in your own language.
Find your local Danfoss website here: www.danfoss.com/en/choose-region.
Spare Parts
Get access to the Danfoss spare parts and service kit catalog right from your smartphone. The app
contains a wide range of components for air conditioning and refrigeration applications, such as
valves, strainers, pressure switches, and sensors.
Download the Spare Parts app for free at www.danfoss.com/en/service-and-support/downloads.
Coolselector®2 - nd the best components for you HVAC/R system
Coolselector®2 makes it easy for engineers, consultants, and designers to nd and order the best
components for refrigeration and air conditioning systems. Run calculations based on your operating
conditions and then choose the best setup for your system design.
Download Coolselector®2 for free at coolselector.danfoss.com.
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technical data in product manuals, catalogues descriptions, advertisements, etc. and whether made available in writing, orally, electronically, online or via download,
shall be considered informative, and is only binding if and to the extent, explicit reference is made in a quotation or order conrmation. Danfoss cannot accept any
responsibility for possible errors in catalogues, brochures, videos and other material. Danfoss reserves the right to alter its products without notice. This also applies to
products ordered but not delivered provided that such alterations can be made without changes to form, t or function of the product. All trademarks in this material
are property of Danfoss A/S or Danfoss group companies. Danfoss and the Danfoss logo are trademarks of Danfoss A/S. All rights reserved.