+352 27 63 53 92

customer-service@partao.com

Partao Logo

0

0

John Deere
New Holland
Case IH
Fendt
Kubota
Massey Ferguson
STIHL
Osram
View All 2,900+ BrandsRequest a Quote
Partao Logo

Need a larger order?

Request a Quote
Privacy and Cookie PolicyTerms and Conditions

Copyright © 2026 partao.com. All rights reserved

Partao S.A.R.L.

Address: 9 rue du Laboratoire 1911, Luxembourg, Luxembourg

Email: customer-service@partao.com

Tel: +352 27 63 53 92

Explore

  • About Us
  • Request Your Part
  • Knowledge Base
  • Careers

Help

  • Shipping & Returns
  • Contact Us
  • Seller Quick Guide
  • Help

Legal

  • All prices are exclusive of VAT
  • VAT: LU36240485
  • Business Registration: B291859

© 2025-present partao.com

  • Privacy and Cookie Policy
  • Terms and Conditions
Home
Attachments & Lift
Hydraulic Systems
Hoses & Fittings
Caleffi - D75N7Y - Underblock Two-Pipe System Bottom Connection
Caleffi - D75N7Y - Underblock Two-Pipe System Bottom Connection

In stock - ready to ship

Order now for delivery between 13 May and 16 May
Free shipping on orders over €60

Pay Securely with

Caleffi - D75N7Y - Underblock Two-Pipe System Bottom Connection

Caleffi - D75N7Y - Underblock Two-Pipe System Bottom Connection

€50.15

(Excl. VAT)

Price

(Excl. VAT)

€50.15

Product Description

Genuine Caleffi 328401 H-block / UNDERBLOCK two-pipe system bottom connection, designed for radiators with 1/2” female connections and a 50 mm centre distance. This chrome-plated brass fitting includes both shut-off and pre-setting functions, along with pipe connection adapters. It operates at a maximum working pressure of 10 bar and a maximum working temperature of 100 °C, ensuring reliable performance in hydronic heating systems.
Caleffi

Product Details

Brand
caleffi
Plating
Chrome plated
Depth mm
40
Height mm
80
Length mm
60
Body material
Brass
Seal material
EPDM
Pipe connection
3/4” M
Centre distance mm
50
Handwheel material
ABS
Kv fully open m3 h
2.5
Radiator connection
1/2” F
Max working pressure bar
10
Max working temperature c
100
Kv fully open bypass closed m3 h
1.9
Manufacturer
caleffi

Similar items you might like

  • Caleffi

    Caleffi - D8RK5C - Insulation For Distributor 664 With 2-6 Branches

    Caleffi

    €143.24

  • Caleffi

    Caleffi - DA693C - Safety Valve 1/2" 2.25 Bar

    Caleffi

    €84.39

  • Caleffi

    Caleffi - DAGZ8F - Balanced By-Pass Tee 1/2" 1.40 M3/H

    Caleffi

    €98.30

  • Caleffi

    Caleffi - DGMD7V - Deca-Coupling For PE Pipes Internal Thread Ø27 X 3/4"

    Caleffi

    €22.33

  • Caleffi

    Caleffi - DHGFVJ - Safety Valve For Solar Energy Systems 1/2" X 3/4" 4 Bar

    Caleffi

    €46.94

  • Caleffi

    Caleffi - DJ9MB7 - Pressure Gauge 1/4" 0-25 Bar Rear Connection

    Caleffi

    €24.47

  • Caleffi

    Caleffi - DKGRSB - Automatic Radiator Vent Aercal® 1 1/4" Left

    Caleffi

    €36.24

  • Caleffi

    Caleffi - DPXDNZ - Extension Distributor Press Brass 3/4" X5 M23

    Caleffi

    €54.43

  • Caleffi

    Caleffi - DRQWNX - Plug And Seal For Sepcoll Series 559

    Caleffi

    €61.92

  • Caleffi

    Caleffi - E44Q7N - Thermometer Ø40 mm (0-80°C) With Immersion Sleeve

    Caleffi

    €31.96

Reviews

Customer Reviews

Be the first to write a review!

Product Description

Genuine Caleffi 328401 H-block / UNDERBLOCK two-pipe system bottom connection, designed for radiators with 1/2” female connections and a 50 mm centre distance. This chrome-plated brass fitting includes both shut-off and pre-setting functions, along with pipe connection adapters. It operates at a maximum working pressure of 10 bar and a maximum working temperature of 100 °C, ensuring reliable performance in hydronic heating systems.
Caleffi

Product Details

Brand
caleffi
Plating
Chrome plated
Depth mm
40
Height mm
80
Length mm
60
Body material
Brass
Seal material
EPDM
Pipe connection
3/4” M
Centre distance mm
50
Handwheel material
ABS
Kv fully open m3 h
2.5
Radiator connection
1/2” F
Max working pressure bar
10
Max working temperature c
100
Kv fully open bypass closed m3 h
1.9
Manufacturer
caleffi

Reviews

Customer Reviews

Be the first to write a review!

Similar items you might like

  • Caleffi

    Caleffi - D8RK5C - Insulation For Distributor 664 With 2-6 Branches

    Caleffi

    €143.24

  • Caleffi

    Caleffi - DA693C - Safety Valve 1/2" 2.25 Bar

    Caleffi

    €84.39

  • Caleffi

    Caleffi - DAGZ8F - Balanced By-Pass Tee 1/2" 1.40 M3/H

    Caleffi

    €98.30

  • Caleffi

    Caleffi - DGMD7V - Deca-Coupling For PE Pipes Internal Thread Ø27 X 3/4"

    Caleffi

    €22.33

  • Caleffi

    Caleffi - DHGFVJ - Safety Valve For Solar Energy Systems 1/2" X 3/4" 4 Bar

    Caleffi

    €46.94

  • Caleffi

    Caleffi - DJ9MB7 - Pressure Gauge 1/4" 0-25 Bar Rear Connection

    Caleffi

    €24.47

  • Caleffi

    Caleffi - DKGRSB - Automatic Radiator Vent Aercal® 1 1/4" Left

    Caleffi

    €36.24

  • Caleffi

    Caleffi - DPXDNZ - Extension Distributor Press Brass 3/4" X5 M23

    Caleffi

    €54.43

  • Caleffi

    Caleffi - DRQWNX - Plug And Seal For Sepcoll Series 559

    Caleffi

    €61.92

  • Caleffi

    Caleffi - E44Q7N - Thermometer Ø40 mm (0-80°C) With Immersion Sleeve

    Caleffi

    €31.96

Caleffi - D75N7Y - Underblock Two-Pipe System Bottom Connection

SKU: caleffi-d75n7y

Caleffi
Browse all parts

€50.15

(excl. VAT)