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VANTEQINDUSTRIAL
Valves / CS-260

Series CS-260 Dual Plate Check Valve

VQ-CS260

Check and safety valve, sizes DN50 to DN600, rating PN25.

SIZES
DN50 to DN600
RATING
PN25
TEMPERATURE
-29 to +200 °C

Why it is specified

The valves nobody looks at until the day they matter. Sized on the relieving case rather than on the line, and quoted with the set pressure, the required capacity and the back-pressure assumption stated.

Typical applications

  • Compressor protection
  • Pump discharge non-return
  • Thermal relief on isolated lines
  • Vessel and boiler protection

Options and executions

  • Bellows for back-pressure
  • Lifting lever, plain or packed
  • Soft seat for tight shut-off
  • Test certificate with the set pressure
Specification

The full table.

Figures cover the whole series. The variant table below narrows them to a part number.

PERFORMANCE

Capacity
Kv 520 to 68,000 m³/h
Seat tightness
Bubble tight with a soft seat

MATERIALS

Body
1.4408 stainless steel
Internals
1.4408 plates, 1.4462 spring
Spring
1.4462 duplex torsion spring
Seat
PTFE or metal

CONNECTIONS AND RATINGS

Sizes
DN50 to DN600
Connections
Wafer, between EN 1092-1 flanges
Pressure rating
PN25
Temperature range
-29 to +200 °C
Mounting
Any orientation
Variants and part numbers

Stocked frame sizes.

PART NUMBERSIZESET PRESSUREBODYSEAT
VQ-CS260-10DN80—1.4408 stainless steelPTFE or metal
VQ-CS260-20DN200—1.4408 stainless steelPTFE or metal
VQ-CS260-30DN600—1.4408 stainless steelPTFE or metal
Datasheet

CS-260, DS-CS-260

  • Document DS-CS-260
  • Revision Rev 3
  • Issued 2026
  • Pages 10

The datasheet is issued with the selection rather than downloaded blind, so the figures that arrive are the ones for your duty point. Ask for it with the quotation and it comes back as a PDF.

What is in it

  • Selection data and the limits each figure applies at
  • Dimensional drawings for every size in the variant table
  • Materials of construction and the compatibility notes
  • Installation, commissioning and maintenance intervals
  • Spare parts list with the part numbers
Next step

Quote the CS-260 for your duty.

Send the process data and the line size. The quotation comes back with the selection, the calculation and the lead time on the stocked variants.

Vanteq Industrial is a fictional company created for demonstration purposes. This product does not exist. The specifications, performance figures, materials and datasheet references on this page are illustrative and must not be used to select, size or buy equipment.