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Georg Fischer Type 561 / 562 Cone Check Valves
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Georg Fischer / GF Signet

Georg Fischer Type 561 / 562 Cone Check Valves

SKU · 41489 · Type 561/562 Check Valves · Brand: Georg Fischer / GF Signet
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GF 561/562: DN10–100; springless/spring; PVC–PVDF; PN10/16. RFQ.

Download datasheet PDF

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Key parameters

Approvals
ACS; FDA; DIBt; TA-Luft; EN ISO 16137
Notes
Specs from GF Type 561/562 technical datasheet 07/2026-A + instruction manual 161484993. OEM gfps.com.
Types
Type 561 without spring (vertical, low opening pressure); Type 562 with spring (any orientation, leak-tight)
Size Range
d16/DN10 to d110/DN100 (⅜"–4")
Body Materials
PVC-U, PVC-C, ABS, PP-H, PVDF
Gasket Materials
EPDM, FKM, FFKM
Download datasheet PDF

Fits non-return protection in plastic piping where you need Georg Fischer Type 561 (springless) or Type 562 (spring-loaded) cone check valves—DN10–DN100 (⅜–4 in) in PVC-U, PVC-C, ABS, PP-H or PVDF with EPDM/FKM/FFKM gaskets.

Key advantages

  • Sizes — DN10–DN100 (⅜–4 in)
  • 561 — Springless, low opening pressure
  • 562 — Spring-loaded, any-position leak-tight class
  • Materials — PVC-U, PVC-C, ABS, PP-H, PVDF
  • Pressure — PN16 PVC/PVDF class; PN10 PP/ABS

Typical applications

  • Pump discharge non-return.
  • Chemical line check.
  • Cooling circuit backflow prevention.

Selection guide

  • 561 vs 562
  • Material / gasket
  • Socket vs spigot vs flange

Common mistakes

  • Solids in media.
  • No straight-run before/after.
  • Vertical flow wrong direction.

When to RFQ / what to tell us

  1. Type, size, material, ends.
  2. Quantity, ship-to.

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Specs

SpecValue
SKU41489
BrandGeorg Fischer
ModelType 561 / 562
Product typeCheck Valve
TypeCone check valve (561 springless / 562 spring-loaded)
SizesDN10–DN100 (⅜–4 in)
MaterialsPVC-U, PVC-C, ABS, PP-H, PVDF; gasket EPDM/FKM/FFKM
PressurePN16 PVC-U/PVC-C/PVDF; PN10 PP-H/ABS
Function note561 low opening pressure; 562 any-position leak-tight class

Documents

FAQ

Q: 561 vs 562? A: 561 springless; 562 spring-loaded for any position.

Q: Size range? A: DN10 to DN100 (⅜–4 in).

Q: What should I send for a quote? A: Type/size/material, quantity, ship-to.

Links

ParameterValue
ApprovalsACS; FDA; DIBt; TA-Luft; EN ISO 16137
NotesSpecs from GF Type 561/562 technical datasheet 07/2026-A + instruction manual 161484993. OEM gfps.com.
TypesType 561 without spring (vertical, low opening pressure); Type 562 with spring (any orientation, leak-tight)
Size Ranged16/DN10 to d110/DN100 (⅜"–4")
Body MaterialsPVC-U, PVC-C, ABS, PP-H, PVDF
Gasket MaterialsEPDM, FKM, FFKM
SpringType 562: stainless V2A standard; optional Nimonic 90 / HALAR-coated V2A
Pressure RatingPN16 (PVC-U, PVC-C, PVDF); PN10 (PP-H, ABS)
ConnectionsSolvent sockets ISO/BS/ASTM/JIS; spigots; threaded sockets; fixed flanges; PE100 butt-fusion spigots
Kv100 ExamplesDN10 ≈ 190 l/min; DN50 ≈ 1670 l/min; DN100 ≈ 4150 l/min (Δp=1 bar Kv100 table)
MediaParticle-free liquids, viscous and gaseous media (material-dependent chemical resistance)
StandardsEN ISO 16137; tested to ISO 9393-2 / EN 12266-1
Approvals ListedACS, FDA, DIBt, TA-Luft, NAMSA, KIWA* (*to d63/DN50)