Water Tube Oil Gas Fired Boiler

Overview

SZS boiler is gas fired(oil fired) boiler with three pass return water tubes, also called fast-assembled water tube boiler. It adopts double-drum "D-type" arrangement, full water membrane wall structure, compound water circulation.

• Fuel: natural gas, lpg, cng, biogas, diesel oil, heavy oil, dual fuel

• Capacity: 4-50 ton, 300-3500hp, 2.8-35mw

• Rated Pressure:1.0mpa/1.25mpa/1.6mpa/2.5mpa/3.0mpa/3.82mpa (30psi-600psi)

• High steam temperature up to 450˚C

Application

For saturated steam, superheated steam or hot water supply, in food, beverage, refining, petrochemical, pulp and paper, mining, manufacturing, utilities and other industries.

Protective Function

• 5 Stage Interlock Protection. Water level protection, flame out protection, pressure protection, exhausted smoke over temperature protection, design with the 5th water level detector;
• Automatic operation of the burner ignition, flameout, big/small fire switch;
• Voltage and power supply abnormality protection function;
• Steam quality protection;
• Water quality protection (dosing device and TDS system optional)

• Leakage protection.

Advantages

1. D-type offset furnace has large furnace space, good flame filling, and sufficient combustion;

2. D-type double drum with compact structure, quick installation.

3. Pure water pipe + large upper and lower drum design, rapid pressure increase, saving operating costs;

4. Larger water volume + steam-water separation device, high steam quality;

5. Adopt full water membrane wall furnace, which has good sealing performance and good heat transfer performance.

6. Double-layer 120mm aluminum silicate insulation, the outer temperature does not exceed 45 degrees Celsius

7. The tilt angle design of the upper and lower headers makes the water flow smoother and prevents the generation of dead water areas.

8. Natural water circulation princinple, low water quality requirements and has few faults.

9. The tail is equipped with a flue gas condensation device to reduce the flue temperature and improve the thermal efficiency of the boiler;

10. Built-in soot blower for effective cleaning of superheaters and other heat transfer surfaces

11. Safe operation for over 20 years

Hot Product

Why Choose Yuanda Boiler?

Yuanda's philosophy: "Quality First, Integrity Wins the World, and Common Development with Customers"

Company Strength

■ Founded in 1956, a premium supplier assessed, certified, and inspected by SGS Group. Leading industrial boiler manufacturer in China.
■ Holds international boiler certifications: CE, ASME, DOSH, EAC, GOST, ISO
■ Over 17 years of export experience, gold-level supplier, ensuring payment and delivery.
■ Professional team integrating R&D, production, sales, and service.
■ 53,053㎡ Factory area, supporting video/VR factory audits or third-party inspections.
■ Engineers serving over 50 countries.

■ Products sold to over 130 countries/regions, covering food, beverage, textiles, paper, wood industries. Serving over 100,000 customers.

Products & Technology

■ Diverse Product Range: Fire-tube boilers, water-tube boilers, water-fire-tube boilers, combined boilers, vertical boilers, cogeneration boilers, waste heat recovery boilers, skid-mounted boilers, and mobile containerized boilers.
■ Flexible Fuels: Supports various fuels such as natural gas, biogas, lpg, diesel, heavy oil, dual fuels, coal, biomass, wood chips, sawdust, bagasse, wood residue, sawdust, forest waste, palm shells, hybrid biomass/gas, palm fiber, rice husks, walnut shells, electricity, etc.

■ Collaboration with advanced boiler research institutes ensures advanced technology and high energy efficiency.

Services & Markets

■ Local Support: We have long-term, reliable local agents, can provide one-stop service from installation and training to maintenance.
■ Comprehensive Service: From project planning to after-sales support, we provide comprehensive support throughout the whole boiler life, with 24/7 online support and immediate response.
■ Local Projects: We have installed many boiler projects in different countries, can provide boiler case studies.

■ High Repurchase Rate: 55% of our customers are repeat customers or referral customers.