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Interpump K5.3 Flow Sensitive Unloader Valve – 200 Bar, 25–41 LPM, 3/8" Inlet, 1/2" Outlet
Interpump K5.3 Flow Sensitive Unloader Valve – 200 Bar, 25–41 LPM, 3/8" Inlet, 1/2" Outlet

Interpump K5.3 Flow Sensitive Unloader Valve – 200 Bar, 25–41 LPM, 3/8" Inlet, 1/2" Outlet

SKU : 28-026

Regular price £68.35


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High-capacity flow sensitive unloader valve, 200 Bar, 25–41 LPM. 3/8" BSPF inlet, 1/2" BSPM outlet, dual BSP bypass port.


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Interpump K5.3 Flow Sensitive Unloader Valve – 200 Bar, 25–41 LPM, 3/8" Inlet, 1/2" Outlet

Interpump K5.3 Flow Sensitive Unloader Valve – 200 Bar, 25–41 LPM, 3/8" Inlet, 1/2" Outlet

£68.35

Ask about Interpump K5.3 Flow Sensitive Unloader Valve – 200 Bar, 25–41 LPM, 3/8" Inlet, 1/2" Outlet

Product Details

The Interpump K5.3 is a high-capacity flow sensitive unloader valve designed for professional and industrial pressure washer systems. It ensures smooth system regulation by automatically diverting water flow through the bypass circuit when the spray gun is released, protecting the pump and minimising recoil.

Suitable for systems operating up to 200 Bar and delivering flow rates between 25 and 41 litres per minute, the K5.3 is ideal for heavy-duty use in construction, transport, and agricultural cleaning. Built with a brass body and stainless steel internals, this valve offers robust durability and reliable performance over long service intervals.

Fitted with a 3/8" BSP female inlet, 1/2" BSP male outlet, and a dual-threaded bypass port (3/4" male + 1/2" female BSP) for flexible hose connection. The valve also includes 1/4" BSPF gauge ports to allow accurate pressure monitoring. A 40 Bar minimum working pressure is required for correct function.

Specifications

  • Key Specifications

  • Part No K5.3
  • Type Flow Sensitive Unloader Valve
  • Max Pressure 200 Bar
  • Recommended Minimum Pressure 40 Bar
  • Flow Range 25–41 L/min
  • Max Water Temp 60°C
  • Inlet 3/8" BSP Female
  • Outlet 1/2" BSP Male
  • Bypass Port 3/4" BSP Male + 1/2" BSP Female
  • Gauge Ports 2x 1/4" BSP Female
  • Construction Brass body with stainless steel internal components

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Delivery & Returns

DELIVERY
  • Free UK Delivery on all orders over £150.
  • From £2.99 UK Delivery on orders under £150.
RETURNS

If you do not like the product you can return it within 15 days. We have an easy and hassle free return policy. Please look at our Delivery & Returns section for further information.


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