
Data Sheet
Shut-off valves
Type STC
Designed referring European standards to meet the challenges
in industrial refrigeration application requirements in Asia
STC are angleway and straightway shut-o
valves which are designed to meet industrial
refrigeration application requirements.
The valves are designed to give favourable ow
characteristics and are easy to dismantle and
repair when necessary.
Features
• Applicable to all common refrigerants
including R717 and non corrosive gases/
liquids dependent on sealing material
compatibility
• Available with:
◦ Heavy duty industrial handwheel for
frequent operation
◦ Vented cap for infrequent operation
• Available in angle and straight versions with
standard bonnet for installation in normal
insulated systems
• The valves and caps are prepared for sealing,
to prevent operation by unauthorized
persons
• Internal metal backseating
◦ DN 15 - 150 (½ - 6 in.)
◦ Can accept ow in both directions
• Max. working pressure: 25 bar (365 psig)
• Temperature range: -50 °C – 150 °C (-58 °F –
302 °F)
• Design specication according to DIN 3158
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Shut-o valves, Type STC
Media
Refrigerants
Applicable to HCFC, non ammable HFC, R717 (Ammonia) and R744 (CO2). Flammable hydrocarbons are not
recommended. The valve is only recommended for use in closed circuits.
For further information please contact Danfoss.
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.
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Bushing for packing
gland
AL 6061-T6
B22111Gasket in packing gland
Shut-o valves, Type STC
Product specication
Material specication
STC 15-25 ANG STR
Figure 1: STC 15-25
Table 1: STC 15-25
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Bushing for packing
gland
AL 6061-T6
B22111Gasket in packing gland
Shut-o valves, Type STC
STC 32-40 ANG STR
Figure 2: STC 32-40
Table 2: STC 32-40
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10B21
F22828Flange gasket
Bushing for packing
gland
AL 6061-T6
B22110Gasket in packing gland
Shut-o valves, Type STC
STC 50-65 ANG STR
Figure 3: STC 50-65
Table 3: STC 50-65
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10B21
F22828Flange gasket
Bushing for packing
gland
AL 6061-T6
B22110Gasket in packing gland
Shut-o valves, Type STC
STC 80-150 ANG STR
Figure 4: STC 80-150
Table 4: STC 80-150
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Shut-o valves, Type STC
Connections
Figure 5: Metric Figure 6: ANSI Figure 7: SOC
Table 5: Connections
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Shut-o valves, Type STC
Dimensions and weight
Angle version
Figure 8: STC 15-40 Figure 9: STC 50-150
Table 6: Angle version
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Shut-o valves, Type STC
Straight version
Figure 10: STC 15-40 Figure 11: STC 50-150
Table 7: Straight version
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STC 15 M ANG SHUT-OFF VALVE HANDWHEEL
STC 15 M STR SHUT-OFF VALVE HANDWHEEL
STC 15 M ANG SHUT-OFF VALVE CAP
STC 15 M STR SHUT-OFF VALVE CAP
STC 20 M ANG SHUT-OFF VALVE HANDWHEEL
STC 20 M STR SHUT-OFF VALVE HANDWHEEL
STC 20 M ANG SHUT-OFF VALVE CAP
STC 20 M STR SHUT-OFF VALVE CAP
STC 25 M ANG SHUT-OFF VALVE HANDWHEEL
STC 25 M STR SHUT-OFF VALVE HANDWHEEL
STC 25 M ANG SHUT-OFF VALVE CAP
STC 25 M STR SHUT-OFF VALVE CAP
STC 32 M ANG SHUT-OFF VALVE HANDWHEEL
STC 32 M STR SHUT-OFF VALVE HANDWHEEL
STC 32 M ANG SHUT-OFF VALVE CAP
STC 32 M STR SHUT-OFF VALVE CAP
STC 40 M ANG SHUT-OFF VALVE HANDWHEEL
STC 40 M STR SHUT-OFF VALVE HANDWHEEL
STC 40 M ANG SHUT-OFF VALVE CAP
STC 40 M STR SHUT-OFF VALVE CAP
STC 50 M ANG SHUT-OFF VALVE HANDWHEEL
STC 50 M STR SHUT-OFF VALVE HANDWHEEL
STC 50 M ANG SHUT-OFF VALVE CAP
STC 50 M STR SHUT-OFF VALVE CAP
STC 65 M ANG SHUT-OFF VALVE HANDWHEEL
STC 65 M STR SHUT-OFF VALVE HANDWHEEL
STC 65 M ANG SHUT-OFF VALVE CAP
STC 65 M STR SHUT-OFF VALVE CAP
STC 80 M ANG SHUT-OFF VALVE HANDWHEEL
STC 80 M STR SHUT-OFF VALVE HANDWHEEL
STC 80 M ANG SHUT-OFF VALVE CAP
STC 80 M STR SHUT-OFF VALVE CAP
STC 100 M ANG SHUT-OFF VALVE HANDWHEEL
STC 100 M STR SHUT-OFF VALVE HANDWHEEL
STC 100 M ANG SHUT-OFF VALVE CAP
STC 100 M STR SHUT-OFF VALVE CAP
STC 125 M ANG SHUT-OFF VALVE HANDWHEEL
STC 125 M STR SHUT-OFF VALVE HANDWHEEL
STC 125 M ANG SHUT-OFF VALVE CAP
STC 125 M STR SHUT-OFF VALVE CAP
STC 150 M ANG SHUT-OFF VALVE HANDWHEEL
STC 150 M STR SHUT-OFF VALVE HANDWHEEL
STC 150 M ANG SHUT-OFF VALVE CAP
STC 150 M STR SHUT-OFF VALVE CAP
Shut-o valves, Type STC
Ordering
Valves with Metric connections
Figure 12: Angle version Figure 13: Straight version
Table 8: Valves with Metric connections
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STC 15 A ANG SHUT-OFF VALVE CAP
STC 15 A STR SHUT-OFF VALVE CAP
STC 15 A ANG SHUT-OFF VALVE HANDWHEEL
STC 15 A STR SHUT-OFF VALVE HANDWHEEL
STC 20 A ANG SHUT-OFF VALVE CAP
STC 20 A STR SHUT-OFF VALVE CAP
STC 20 A ANG SHUT-OFF VALVE HANDWHEEL
STC 20 A STR SHUT-OFF VALVE HANDWHEEL
STC 25 A ANG SHUT-OFF VALVE CAP
STC 25 A STR SHUT-OFF VALVE CAP
STC 25 A ANG SHUT-OFF VALVE HANDWHEEL
STC 25 A STR SHUT-OFF VALVE HANDWHEEL
STC 32 A ANG SHUT-OFF VALVE CAP
STC 32 A STR SHUT-OFF VALVE CAP
STC 32 A ANG SHUT-OFF VALVE HANDWHEEL
STC 32 A STR SHUT-OFF VALVE HANDWHEEL
STC 40 A ANG SHUT-OFF VALVE CAP
STC 40 A STR SHUT-OFF VALVE CAP
STC 40 A ANG SHUT-OFF VALVE HANDWHEEL
STC 40 A STR SHUT-OFF VALVE HANDWHEEL
STC 50 A ANG SHUT-OFF VALVE CAP
STC 50 A STR SHUT-OFF VALVE CAP
STC 50 A ANG SHUT-OFF VALVE HANDWHEEL
STC 50 A STR SHUT-OFF VALVE HANDWHEEL
STC 65 A ANG SHUT-OFF VALVE CAP
STC 65 A STR SHUT-OFF VALVE CAP
STC 65 A ANG SHUT-OFF VALVE HANDWHEEL
STC 65 A STR SHUT-OFF VALVE HANDWHEEL
STC 80 A ANG SHUT-OFF VALVE CAP
STC 80 A STR SHUT-OFF VALVE CAP
STC 80 A ANG SHUT-OFF VALVE HANDWHEEL
STC 80 A STR SHUT-OFF VALVE HANDWHEEL
STC 100 A ANG SHUT-OFF VALVE CAP
STC 100 A STR SHUT-OFF VALVE CAP
STC 100 A ANG SHUT-OFF VALVE HANDWHEEL
STC 100 A STR SHUT-OFF VALVE HANDWHEEL
STC 125 A ANG SHUT-OFF VALVE CAP
STC 125 A STR SHUT-OFF VALVE CAP
STC 125 A ANG SHUT-OFF VALVE HANDWHEEL
STC 125 A STR SHUT-OFF VALVE HANDWHEEL
STC 150 A ANG SHUT-OFF VALVE CAP
STC 150 A STR SHUT-OFF VALVE CAP
STC 150 A ANG SHUT-OFF VALVE HANDWHEEL
STC 150 A STR SHUT-OFF VALVE HANDWHEEL
STC 15 SOC ANG SHUT-OFF VALVE HANDWHEEL
STC 15 SOC STR SHUT-OFF VALVE HANDWHEEL
STC 20 SOC ANG SHUT-OFF VALVE HANDWHEEL
STC 20 SOC STR SHUT-OFF VALVE HANDWHEEL
STC 25 SOC ANG SHUT-OFF VALVE HANDWHEEL
STC 25 SOC STR SHUT-OFF VALVE HANDWHEEL
STC 32 SOC ANG SHUT-OFF VALVE HANDWHEEL
STC 32 SOC STR SHUT-OFF VALVE HANDWHEEL
Shut-o valves, Type STC
Valves with ANSI connections
Figure 14: Angle version Figure 15: Straight version
Table 9: Valves with ANSI connections
Valves with SOC connections
Table 10: Valves with SOC connections
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Pressure - Safety Certicate
Shut-o valves, Type STC
Certicates, declarations, and approvals
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.
Table 11: Valid Approvals
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Online support
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
products, applications, industry topics, and trends that will help you do your job better.
Create your Danfoss Learning account for free at www.danfoss.com/en/service-and-support/learning.
Get local information and support
Local Danfoss websites are the main sources for help and information about our company and
products. Find product availability, get the latest regional news, or connect with a nearby expert—all
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.
Any information, including, but not limited to information on selection of product, its application or use, product design, weight, dimensions, capacity or any other
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.
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