---
title: "BOC EVOS Multi Stage Inert Regulator 4bar"
id: "23725"
type: "product"
slug: "boc-evos-multi-stage-inert-regulator-4bar"
published_at: "2026-06-22T14:32:52+00:00"
modified_at: "2026-06-23T10:47:19+00:00"
url: "https://sglonline.co.uk/product/boc-evos-multi-stage-inert-regulator-4bar/"
markdown_url: "https://sglonline.co.uk/product/boc-evos-multi-stage-inert-regulator-4bar.md"
excerpt: "EVOS Multi-Stage Inert Gas Regulator for 300 Bar Cylinders The EVOS Multi-Stage Inert Gas Regulator is designed for use with high-pressure 300 bar EVOS cylinders. Suitable for inert gases such as argon and nitrogen, this regulator provides stable and accurate..."
taxonomy_product_brand:
  - "BOC"
taxonomy_product_type:
  - "simple"
taxonomy_product_cat:
  - "Argon Regulators"
---

[https://sglonline.co.uk/wp-content/uploads/2026/06/EVOS-80864-Multi-Stage-Inert-Regulator-10bar.jpg](https://sglonline.co.uk/wp-content/uploads/2026/06/EVOS-80864-Multi-Stage-Inert-Regulator-10bar.jpg)

[Argon Regulators](https://sglonline.co.uk/product-category/gas-equipment/gas-regulators/argon-regulators/)

# BOC EVOS Multi Stage Inert Regulator 4bar

Earn 265 points with this purchase

£265.49£318.59 Exc VATInc VAT

Collection or Next Day Delivery Available. Dispatches in:

SKU: 80855Category: [Argon Regulators](https://sglonline.co.uk/product-category/gas-equipment/gas-regulators/argon-regulators/)
Brand: [BOC](https://sglonline.co.uk/brand/boc/)

- [Description](#tab-description)
- [Reviews (0)](#tab-reviews)

## EVOS Multi-Stage Inert Gas Regulator for 300 Bar Cylinders

The **EVOS Multi-Stage Inert Gas Regulator** is designed for use with **high-pressure 300 bar EVOS cylinders**. Suitable for inert gases such as **argon and nitrogen**, this regulator provides stable and accurate outlet pressure for professional gas applications.

Its multi-stage design makes it ideal for applications where consistent gas delivery is required, including quality cutting, laboratory systems, precision machine cutting and other high or stable flow requirements.

Built with a strong **barstock brass body**, the regulator is designed for durability and reliable performance. The first stage reduces full cylinder pressure by approximately 90%, helping provide smooth and controlled pressure regulation.

### Key Features

- Multi-stage regulator for inert gases
- Suitable for argon, nitrogen and other compatible inert gases
- Designed for use with 300 bar EVOS cylinders
- Provides stable and accurate outlet pressure
- Ideal for high or stable flow applications
- Suitable for quality cutting, laboratory systems and precision machine cutting
- Strong barstock brass body for maximum durability
- First stage reduces full cylinder pressure by approximately 90%
- Side-entry design
- Pressure gauge manufactured according to ISO 5171

### Technical Details

- **Gas:** Inert gases, such as argon and nitrogen
- **Use:** Multi-stage regulator for 300 bar EVOS cylinders
- **Inlet Connection:** BS341 No.30, NEVOC
- **Temperature Range:** -20°C to +60°C
- **Leak Rate:** Max 10cm³/h according to ISO 9090
- **Weight:** 2.3kg
- **Body Material:** Barstock brass
- **First Stage Bonnet:** Brass
- **Second Stage Bonnet:** Zama 15
- **Diaphragm:** Neoprene
- **Valve Seat:** PTFE / Teflon
- **Pressure Gauge:** According to ISO 5171

## Reviews

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