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K Series Flow Sensitive Unloader ValvesK Series Flow Sensitive Unloader Valves
Interpump K3 Unloader Valve 8-11 LPM
k3 unloader valve
InterpumpFlow Sensitive Unloader Valve

Interpump K3 Unloader Valve 8-11 LPM

SKU K3.0
Max pressure
100 bar
Max flow
8 - 11 LPM
Inlet
⅜" BSP Female
Outlet
½" BSP Male · Thread chart
£89.78 ex VAT
£107.74 inc. VAT
In stockOrder by 2pm for next-day delivery.
Need help choosing? Call 015395 66193 (Mon–Fri 9am–5pm) or email sales@flowjet.co.uk.

Overview

Interpump K3 flow sensitive unloader valve in brass and stainless steel, rated to 100 bar and 8 to 11 litres per minute, with water up to 60°C. It regulates and limits system pressure by diverting excess water to the bypass, and releases the flow fully when the outlet is closed. Pressure is adjusted by hand.

It has a 3/8" BSP female inlet, 1/2" BSP male outlet, 3/4" BSP male and 1/2" BSP female bypass ports and 1/4" BSP female gauge ports.

Specification

Part numberK3.0
BrandInterpump
SeriesK3
TypeFlow sensitive
Maximum pressure100 bar
Flow range8 to 11 litres per minute
Maximum temperature60°C
Inlet3/8" BSP female
Outlet1/2" BSP male
Bypass3/4" BSP male and 1/2" BSP female
Gauge ports1/4" BSP female
ConstructionBrass and stainless steel

Sizing help

To check thread sizes, see our BSP thread size chart.

For technical advice or help choosing a part, call 015395 66193 or email sales@flowjet.co.uk.

Interpump K3 flow sensitive unloader valve, 100 bar, 8 to 11 litres per minute, 3/8" BSP female inlet.

Specifications

Brand
Interpump
Max Pressure Rating
100 bar
Max Flow Rating
8 - 11 LPM
Inlet
⅜" BSP Female
Outlet
½" BSP Male
Unloader Valve Series
Interpump K series (Flow Sensitive)
Material
Brass
Weight
0.775 kg

Technical information

100 Bar max pressure*

8-11 Lpm flow

60°C max water temperature

Flow sensitive valve

Brass & st.steel construction

3/8"BSPF inlet

1/2"BSPM outlet

3/4"M + 1/2"F BSP bypas

1/4"BSPF guage ports

*40 Bar recommended minimum working pressure

Compare similar products

Detail
This product
Interpump K3 Unloader Valve 11-16 LPM
Interpump K3 Unloader Valve 16-21 LPM
Interpump K5.1 Unloader Valve 11-16 Lpm flow
Price£89.78 ex VAT
£107.74 inc VAT
£89.78 ex VAT
£107.74 inc VAT
£89.78 ex VAT
£107.74 inc VAT
£101.32 ex VAT
£121.58 inc VAT
Max pressure100 bar100 bar100 bar200 bar
Max flow8 - 11 LPM11 - 16 LPM16 - 21 LPM11 - 16 LPM
Inlet⅜" BSP Female⅜" BSP Female⅜" BSP Female⅜" BSP Female
Outlet½" BSP Male½" BSP Male½" BSP Male½" BSP Male
AvailabilityIn stockIn stockIn stockIn stock

Documents

interpump_k3_unloader_parts_list_1interpump_k3_unloader_parts_list_1
Data Sheet pdf_link_2

Interpump K3 User Manual.pdf

Delivery & returns

  • Free delivery on online orders over £200 + VAT to a UK mainland address.
  • Orders processed by 2pm go out on tracked, insured next-working-day delivery.
  • Orders under £200 + VAT: delivery £11.99 + VAT.
  • Returns: ask us for a returns number first. Unused goods in their original packaging can come back at our discretion, less a restocking fee; faulty or wrong items have no fee.
Full delivery & returns details

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