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Safety valve for nitrogen control unit

SKU: SIR0298
EAN: 20000000538149
Brand: Polsinelli
Unit: pc
Stock qty: Pre-order

Delivery time (day): 14-30
Price:
190,00 €
Qty.: - +
   - or -   

Double-sided Safety Valve for Tanks - Stainless Steel Garolla 40

Advanced double-sided safety valve ensures maximum protection for your tank against both over- and under-pressure. This stainless steel device is an ideal solution for tanks with nitrogen control systems.

Technical Specifications:

  • Body: durable stainless steel
  • Connection type: Garolla 40
  • Air flow capacity: 20 m³/h
  • Overpressure activation: 35 millibar (0.035 bar)
  • Underpressure activation: 5 millibar

Reliable Protection System

The safety valve automatically regulates pressure in two ways:

  • Releases excess gas from the tank during overpressure
  • Allows air intake during underpressure, protecting the tank from collapse

Note: For optimal results, we recommend ordering the tank together with this safety valve. Contact our specialists to find the best solution.

Frequently asked questions about this product

Why does a tank need a double-acting over- and under-pressure valve?

Sealed tanks face two opposite risks: pressure building up as gas or temperature rises, and a vacuum forming as liquid is drawn off or the contents cool. This valve guards against both, venting excess pressure and admitting air under vacuum, which protects the tank from bulging or, more seriously, collapsing inward.

What do the 35 mbar and 5 mbar activation points mean in practice?

The valve releases excess gas once overpressure reaches about 35 millibar (0.035 bar) and lets air in when underpressure reaches about 5 millibar, with an air-flow capacity around 20 m³/h. These low thresholds are deliberately gentle so the thin tank walls are protected well before pressure reaches a damaging level.

Will it fit my tank, and what is the connection?

It uses a Garolla 40 connection and a stainless steel body, so it suits tanks fitted with a matching Garolla 40 port and nitrogen or inert-gas control systems. Confirm your tank has the corresponding fitting; the supplier recommends specifying the valve together with the tank for a correct match.

What maintenance keeps the valve reliable?

Keep the valve clean and free of dried residue so both the over- and under-pressure mechanisms can move freely and seal properly. Check periodically that it actuates as expected, since a stuck valve can leave the tank unprotected against either pressure or vacuum.

lumav_meta_description_de Das doppelseitige Edelstahl-Sicherheitsventil öffnet bei 35 mbar Überdruck und 5 mbar Unterdruck und schützt Behälter mit Stickstoffsteuerung.
lumav_meta_description_en This stainless steel double-sided safety valve opens at 35 mbar overpressure and 5 mbar vacuum, protecting tanks with nitrogen control systems.
lumav_meta_description_et Roostevabast terasest kahepoolne kaitseklapp avaneb 35 mbar ülerõhul ja 5 mbar alarõhul, kaitstes mahutit lämmastikusüsteemis.
lumav_meta_description_fi Ruostumattomasta teräksestä valmistettu kaksipuolinen varoventtiili avautuu 35 mbar ylipaineessa ja 5 mbar alipaineessa, suojaten säiliötä typpijärjestelmässä.
lumav_meta_description_lt Nerūdijančio plieno dvipusis apsauginis vožtuvas atsidaro esant 35 mbar viršslėgiui ir 5 mbar vakuumui, saugant talpas su azoto sistema.
lumav_meta_description_lv Nerūsējošā tērauda divvirzienu drošības vārsts atveras pie 35 mbar pārspiediena un 5 mbar retinājuma, aizsargājot tvertnes ar slāpekļa sistēmu.
lumav_meta_description_sv Den dubbelsidiga säkerhetsventilen i rostfritt stål öppnar vid 35 mbar övertryck och 5 mbar undertryck och skyddar tankar med kvävestyrning.
lumav_meta_keywords_de Sicherheitsventil, Überdruckventil, Unterdruckventil, Behälterventil, Stickstoffventil
lumav_meta_keywords_en safety valve, tank pressure relief valve, overpressure valve, vacuum valve, nitrogen control valve
lumav_meta_keywords_et kaitseklapp, mahuti ohutusventiil, ülerõhuklapp, alarõhuklapp, lämmastikuklapp
lumav_meta_keywords_fi varoventtiili, säiliön ylipaineventtiili, alipaineventtiili, typpiventtiili, säiliön suojaventtiili
lumav_meta_keywords_lt apsauginis vožtuvas, talpos slėgio vožtuvas, viršslėgio vožtuvas, vakuumo vožtuvas, azoto vožtuvas
lumav_meta_keywords_lv drošības vārsts, tvertnes spiediena vārsts, pārspiediena vārsts, vakuuma vārsts, slāpekļa vārsts
lumav_meta_keywords_sv säkerhetsventil, övertrycksventil, undertrycksventil, tankventil, kväveventil
lumav_meta_title_de Sicherheitsventil 35mbar für Behälter
lumav_meta_title_en Safety Valve 35mbar for Tanks
lumav_meta_title_et Kaitseklapp 35mbar mahutile
lumav_meta_title_fi Varoventtiili 35mbar säiliölle
lumav_meta_title_lt Apsauginis vožtuvas 35mbar talpai
lumav_meta_title_lv Drošības vārsts 35mbar tvertnei
lumav_meta_title_sv Säkerhetsventil 35mbar för tank
High (m) 0.135
Width (m) 0.12
Length (m) 0.12
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