+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
Engine & Components
Cooling System
Other Cooling System Parts
Herz - GJH678 - Valves VUA AHA Four-Port Valve DN20
Herz - GJH678 - Valves VUA AHA Four-Port Valve DN20

In stock - ready to ship

Order now for delivery between 11 May and 14 May
Free shipping

Pay Securely with

Herz - GJH678 - Valves VUA AHA Four-Port Valve DN20

Herz - GJH678 - Valves VUA AHA Four-Port Valve DN20

€114.35

(Excl. VAT)

Price

(Excl. VAT)

€114.35

Product Description

The part number GJH678 refers to a genuine HERZ VUA 4-way mixing valve, also known by OEM part number 1778340. This valve is engineered for precise temperature control in heating and cooling systems, featuring a DN20 nominal diameter and G 1" internal thread connections. It provides a Kvs value of 4.0 m³/h and is constructed with a durable brass body and a stainless steel slide. Rated for a nominal pressure of PN 10 and a maximum operating temperature of 110 °C, this valve ensures reliable and efficient performance.
Herz

Product Details

Brand
herz
Equivalent OEM Part Numbers

Herz

1778340
Function
mixing valve
Valve type
4-way mixing valve
Body material
brass
Kvs value m3 h
4
Slide material
stainless steel
Connection size
G 1
Connection type
internal thread
Nominal diameter dn
20
Nominal pressure pn
10
Max operating temperature c
110
Manufacturer
herz

Similar items you might like

  • Herz

    Herz - GJX6VA - Ball Valve DN40 PN50

    Herz

    €67.27

  • Herz

    Herz - GP2SXH - 2160 Ball Valve DN25 PN50

    Herz

    €37.31

  • Herz

    Herz - GQ4NHB - TS-90 Thermostatic Radiator Valve

    Herz

    €36.24

  • Herz

    Herz - GQ53S7 - Valves Thermostatic V 98VH M30x1.5

    Herz

    €29.82

  • Herz

    Herz - GQ5M78 - Valves Ball Valves and Boiler Accessories - Ball Valves Kugelhahn DN40 PN25 2xIG

    Herz

    €62.99

  • Herz

    Herz - GQ663A - Overflow Valve - Safety Valve DN25

    Herz

    €29.82

  • Herz

    Herz - GQ6QA7 - Valves dp-Controller DN40 2xFTE

    Herz

    €471.73

  • Herz

    Herz - GSZEE6 - Valves Thermometer for Ball Valve Blue

    Herz

    €16.98

  • Herz

    Herz - GT9MDK - Valves Stainless Steel Manifold 12-outlets

    Herz

    €450.33

  • Herz

    Herz - GUZQP2 - Radiator Valve Body - 2000 Valve Body Single-pipe Straight Shut-off

    Herz

    €41.59

Reviews

Customer Reviews

Be the first to write a review!

Product Description

The part number GJH678 refers to a genuine HERZ VUA 4-way mixing valve, also known by OEM part number 1778340. This valve is engineered for precise temperature control in heating and cooling systems, featuring a DN20 nominal diameter and G 1" internal thread connections. It provides a Kvs value of 4.0 m³/h and is constructed with a durable brass body and a stainless steel slide. Rated for a nominal pressure of PN 10 and a maximum operating temperature of 110 °C, this valve ensures reliable and efficient performance.
Herz

Product Details

Brand
herz
Equivalent OEM Part Numbers

Herz

1778340
Function
mixing valve
Valve type
4-way mixing valve
Body material
brass
Kvs value m3 h
4
Slide material
stainless steel
Connection size
G 1
Connection type
internal thread
Nominal diameter dn
20
Nominal pressure pn
10
Max operating temperature c
110
Manufacturer
herz

Reviews

Customer Reviews

Be the first to write a review!

Similar items you might like

  • Herz

    Herz - GJX6VA - Ball Valve DN40 PN50

    Herz

    €67.27

  • Herz

    Herz - GP2SXH - 2160 Ball Valve DN25 PN50

    Herz

    €37.31

  • Herz

    Herz - GQ4NHB - TS-90 Thermostatic Radiator Valve

    Herz

    €36.24

  • Herz

    Herz - GQ53S7 - Valves Thermostatic V 98VH M30x1.5

    Herz

    €29.82

  • Herz

    Herz - GQ5M78 - Valves Ball Valves and Boiler Accessories - Ball Valves Kugelhahn DN40 PN25 2xIG

    Herz

    €62.99

  • Herz

    Herz - GQ663A - Overflow Valve - Safety Valve DN25

    Herz

    €29.82

  • Herz

    Herz - GQ6QA7 - Valves dp-Controller DN40 2xFTE

    Herz

    €471.73

  • Herz

    Herz - GSZEE6 - Valves Thermometer for Ball Valve Blue

    Herz

    €16.98

  • Herz

    Herz - GT9MDK - Valves Stainless Steel Manifold 12-outlets

    Herz

    €450.33

  • Herz

    Herz - GUZQP2 - Radiator Valve Body - 2000 Valve Body Single-pipe Straight Shut-off

    Herz

    €41.59

Herz - GJH678 - Valves VUA AHA Four-Port Valve DN20

SKU: herz-gjh678

Herz
Browse all parts

€114.35

(excl. VAT)