Uniweld RHP800 nitrogen regulator with dual pressure gauges Uniweld RHP800 nitrogen regulator connected to a nitrogen cylinder Uniweld RHP800 nitrogen regulator product banner
Nitrogen Pressure Control Dual gauges, large T-handle adjustment and 800 PSI delivery capacity for HVAC/R service work
RHP800 Nitrogen Regulator banner from Uniweld

Uniweld

Nitrogen Regulator 800 PSI

The Uniweld RHP800 is a professional nitrogen regulator for HVAC/R pressure testing, leak checking, purging and nitrogen-assisted brazing work.

Available exclusively through your local distributor
Brand Uniweld
SKU UW-RHP800-1A
Product Type Nitrogen regulator for HVAC/R service
Delivery Pressure 0–800 PSI
Gauge Set Dual 2 in. gauges
Gauge Ranges 1000 PSI delivery / 4000 PSI cylinder
Outlet Connection 1/4 in. flare male
Gas Type Nitrogen; CO₂ with optional F36 adaptor
Omni Weight 1.3 kg
Omni Dimensions 245 × 235 × 110 mm
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UW-RHP800-1A

Built for controlled nitrogen delivery during pressure testing, line purging, leak checking and brazing preparation across HVAC/R service work.

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Technical snapshot

Key RHP800 regulator details.

Core pressure, connection and field-use details for choosing and using the RHP800 nitrogen regulator in HVAC/R service applications.
Delivery Range 0–800 PSI For purging and pressure testing
Delivery Gauge 1000 PSI 2 in. gauge with protective boot
Cylinder Gauge 4000 PSI High-pressure cylinder-side reading
Outlet 1/4 in. flare male Connects to suitable hose or service setup
Adjustment Large T-handle Fine pressure control in the field
Primary Use Nitrogen service work Pressure test, purge, braze and commission

Pressure testing & nitrogen purge

Control high-pressure nitrogen before it reaches the system.

The RHP800 regulates cylinder pressure down to a usable delivery pressure for HVAC/R maintenance, installation and commissioning tasks. The dual-gauge arrangement helps technicians check both cylinder pressure and delivery pressure while adjusting flow for the job.

  • Professional nitrogen regulator for HVAC/R service work.
  • Designed for purging, pressure testing and leak checking.
  • Useful during nitrogen-assisted brazing to help reduce internal oxidation inside copper pipework.
  • Large T-handle with stainless steel pressure adjusting screw and bushing.
  • Dual 2 in. gauges for cylinder-side and delivery-side readings.
  • 1/4 in. flare male outlet for compatible service hoses and field setups.

Read the regulator in two places.

Cylinder side 4000 PSI gauge

Confirms available cylinder pressure before and during the job.

Delivery side 1000 PSI gauge

Shows the controlled pressure being sent through the outlet.

Regulator setup path

Set the job up from cylinder to system.

Match the regulator, hose and downstream equipment to the pressure test or purge task before opening the cylinder and adjusting delivery pressure.

01

Cylinder connection

Secure the regulator to the nitrogen cylinder connection and confirm the inlet is suitable for the cylinder being used.

02

Pressure adjustment

Back the T-handle out before opening the cylinder, then increase delivery pressure gradually to the required setting.

03

Outlet to system

Connect a compatible hose or test setup to the 1/4 in. flare outlet and check all service connections before pressurising.

Common HVAC/R uses

One regulator for pressure, purge and brazing support.

The RHP800 suits technicians who need controlled nitrogen for installation, maintenance and diagnostic work on refrigeration and air conditioning systems.

Pressure testing Use controlled nitrogen pressure to test system integrity according to site and equipment requirements.
Leak checking Pressurise the circuit with a stable regulated supply before checking joints, components and service points.
Line purging Use nitrogen flow to clear lines and prepare systems during installation or service work.
Brazing support Run a suitable nitrogen purge during brazing to help reduce internal oxidation and scale in copper pipework.

Pressure safety checks

Use the correct rating for every part of the setup.

  • Secure the nitrogen cylinder and keep the regulator, hose and connected equipment within their rated limits.
  • Do not use the regulator relief valve as downstream system protection.
  • Open the cylinder valve slowly, increase pressure gradually and leak-check connections before testing.
  • Release pressure and back out the adjusting handle when the regulator is not in use.

Related Uniweld products

Linked Uniweld products from Omni Tools.

Internal Omni Tools links only — related nitrogen, charging, hose and brazing service products.
Uniweld Range View Products Nitro Flow Indicator View Product Vapor Vue® 1/4 in. Flare View Product EZ-Turn Anti-Blowback Adaptors View Product 5 ft EZ-Turn Hose Sets View Product Uniweld Hand Torches View Product

Useful information & documents

RHP800 resources.

Omni Tools product and range links, plus Uniweld nitrogen regulator product information and regulator operating instructions.

Omni Tools links

Uniweld Range Open Resource RHP800 Product Page Open Resource

Manufacturer documents

Uniweld Nitrogen Regulators Open Resource Uniweld Regulator Instructions Open PDF

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Omni Tools supports Uniweld products across Australia through local distributors, product information and support pathways.

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