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ECOLINE PTF 800 Lift check valve
Lift check valve


Lift check valve to ANSI/ASME with threaded sockets (NPT), butt weld ends (BW) or socket weld ends (SW), Trim 8 (Stellite/13 % chrome steel), with bolted cover, spring-loaded valve disc, available in carbon steel and alloy steel.
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Main Applications

  • Boiler feed applications
  • Fossil-fuelled power stations
  • Petrochemical industry
  • Pipelines and tank farms
Show all applications

Technical Data

  • Nominal pressureCL 800
  • Max. nominal sizeNPS 2
  • Max. allowed fluid temperature593 °C


  • Long service life and high functional reliability by hard-faced seat/disc interfaces made of wear-resistant and corrosion-resistant materials
  • Reliable sealing. Cover gasket fully confined to prevent creep.
  • Versatile. Closing spring enables use in vertical or horizontal pipes.

Material number list – ECOLINE PTF 800

12 products
NameNominal pressureNominal size InletConnection type InletAPI trim numberWeightMaterial numberPrice
ECOLINE PTF 800 1 1/2 IN SW A105 Trim8CL 800NPS 1 1/2 (DN40)Welded/soldered/bonded socket87.8 Kilogram42292969
upon request
ECOLINE PTF 800 1 1/2 IN SW F316 Trim10CL 800NPS 1 1/2 (DN40)Internal-thread connection107.8 Kilogram42293012
upon request
ECOLINE PTF 800 1 1/4 IN SW A105 Trim8CL 800NPS 1 1/4 (DN32)Welded/soldered/bonded socket86.5 Kilogram42292968
upon request
ECOLINE PTF 800 1 1/4 IN SW F316 Trim10CL 800NPS 1 1/4 (DN32)Internal-thread connection106.5 Kilogram42293011
upon request
ECOLINE PTF 800 1 IN SW A105 Trim8CL 800NPS 1 (DN25)Welded/soldered/bonded socket82.8 Kilogram42292967
upon request


TitleFormatSizeLast change
Declaration of conformity (0570.8545_EN)PDF0.174/19/2021
TitleFormatSizeLast change
Operating manual (0570.86_EN)PDF17.534/19/2021
Operating manual ECOLINE GTF/GLF/SCF/FYF (7361.81_EN)PDF0.614/19/2021
TitleFormatSizeLast change

Technical Data

  • FunctionPrevent backflow
  • Connection typeInternal-thread connection, Butt weld ends, Socket weld ends
  • Casing materialC 15 GAL CUZN, SA182 GRADE F316L, SA182M GRADE F304, SA182 GRADE F304L, UNS K11597, SA182 GR F316, A336 GRADE F22 CLASS 3
  • Nominal pressureCL 800
  • Max. nominal sizeNPS 2
  • Min. nominal sizeNPS 1/2
  • Max. allowed fluid temperature593 °C
  • Min. allowed fluid temperature0 °C
  • Valve body typeStraight-way valve w.weld ends

Sectional Drawings

KSB - one of the world's leading manufacturers of industrial valves and pumps

Founded in 1871 in Frankenthal (Germany), KSB has been one of the leading suppliers of pumps and industrial valves for over 100 years. With more than 15,500 employees worldwide and its own sales and marketing, manufacturing facilities and service operations, KSB develops and produces custom-fit pumps for various applications.

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