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header-product Differential pressure regulator Herz 30 kPa DN15
124.99 €

Differential pressure regulator Herz 30 kPa DN15

Herz differential pressure regulator 30 kPa DN15 Photo 1
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Differential pressure regulator Herz 30 kPa DN15

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Differential pressure regulator Herz 30 kPa DN15

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Short description

Differential pressure regulator by Herz, model 1420241, designed for maintaining a stable differential pressure of 30 kPa in DN15 pipe systems. Compact valve intended for hydronic heating and chilled-water circuits to prevent pressure fluctuations, reduce noise and protect control valves. Suitable for use in residential and light commercial installations where precise pressure control in small-diameter mains is required.
Available for order: 2 pcs.
Warranty: 2 Years
SKU: 11836043
Manufacturer: Herz
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Cost

1.99 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
14.07.2026 {{selectedOffer.officeDeliveryString}}
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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
17.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
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Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa
17.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 3.47 euros per month
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Product information

Description

The Differential pressure regulator Herz 30 kPa DN15 is a compact control valve designed for hydronic heating and chilled-water circuits where maintaining a stable differential pressure is important. Intended for use in DN15 pipe systems, the regulator keeps the pressure difference across terminal units or control valves at a constant 30 kPa, reducing pressure-induced noise, preventing unwanted flow fluctuations and protecting downstream control valves and actuators. The device is suitable for residential and light commercial installations that require reliable pressure balancing in small-diameter mains.

Advantages

The regulator provides precise differential pressure control at 30 kPa in a small DN15 package, enabling quiet and stable system operation. Its compact design simplifies installation in confined spaces and minimizes hydraulic losses while maintaining predictable flow conditions. By stabilizing pressure differentials, the valve reduces wear on control valves and actuators and helps to avoid pumping cycles or hydraulic imbalances that can impair system performance.

Suitable for

  • Hydronic heating systems with DN15 distribution pipes
  • Chilled-water circuits in small residential or light commercial buildings
  • Protection of control valves and actuators from pressure peaks
  • Reducing flow noise and pressure fluctuations in small mains

Key specifications

  • Designed differential pressure setpoint: 30 kPa
  • Connection size: DN15
  • Application: hydronic heating and chilled-water circuits
  • Housing: compact form factor suitable for tight installation spaces
  • Function: maintains constant differential pressure to stabilize flow and protect downstream components

How to use

Install the regulator in the intended DN15 branch or main line following piping direction markings; orientation and location should ensure stable upstream and downstream flow conditions. Integrate the device upstream of control valves or terminal units to maintain the specified 30 kPa differential across those components. Commission the system according to standard hydraulic balancing procedures, verify the pressure differential under typical operating conditions, and adjust upstream controls or pump settings if necessary to ensure proper operation.

Usage recommendations

Place the regulator where it can be accessed for inspection and ensure the surrounding piping is free from debris and air; perform initial checks after system filling and periodic checks during routine maintenance to confirm the differential pressure remains stable at 30 kPa. For best results, combine with proper hydraulic balancing and correct pump sizing suited to DN15 distribution runs.

Description

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Customer reviews

Customer questions

FAQ

How much does the Herz differential pressure regulator 30 kPa DN15 cost, and is it available for purchase?

The price is 124.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Herz differential pressure regulator 30 kPa DN15 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Herz differential pressure regulator 30 kPa DN15 online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Herz products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Herz service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.