Horizontal Steam Sterilizer with Built-In Steam Generator

What is the Horizontal Steam Sterilizer with Built-In Steam Generator?

A horizontal chamber sterilizer with its own electric steam generator, so no plant steam connection is needed. Chamber sizes run from 100 to 1,000 L and cycles cover 105 to 134 °C for instruments, glassware and media.

Overview

This sterilizer combines a horizontal cylindrical or rectangular pressure chamber with an electric steam generator mounted in the base or beside the frame. Water is heated by immersion elements and the resulting steam fills a jacketed chamber and then the load space, so operation is independent of the building steam supply. Typical chamber volumes are 100 to 1,000 L with vertical sliding or hinged doors, and installed power ranges from 6 to 40 kW at 380 V three-phase. Cycles include gravity, pre-vacuum with a water-ring pump, and drying with a vacuum stage, at selectable temperatures of 105, 121 and 134 °C. Controls log chamber pressure and load temperature, and printers or data ports support documentation. The generator needs treated feed water to limit scale on the elements and the chamber.

How does it work?

Steam sterilization relies on saturated steam condensing on the load, where it releases latent heat and raises the surface temperature rapidly; the moisture plus heat coagulates proteins and kills microorganisms, including spores. Cycle efficacy depends on air removal, because trapped air forms a cooler pocket that blocks steam contact. Machines therefore use gravity displacement, where steam enters at the top and pushes air out of a bottom drain, or pre-vacuum cycles, where a pump or ejector removes air in stages before steam admission. Saturated steam quality is defined by dryness fraction, non-condensable gases and superheat. A jacketed chamber and insulated door hold temperature, a pressure vessel with a safety valve contains the load, and instruments record chamber pressure and load temperature so the cycle can be documented and validated.

What are the key features?

• Self-contained electric steam generator, no plant steam required.
• Jacketed chamber of 100 to 1,000 L with sliding or hinged door.
• Selectable cycles at 105, 121 and 134 °C.
• Water-ring vacuum pump for pre-vacuum and drying stages.
• Data logging of chamber pressure and load temperature.
• Treated water connection to limit scale on elements.

What are the technical specifications?

A typical horizontal steam sterilizer with built-in steam generator configuration offers chamber volume of 100-1,000 L, working temperature of 105-134 °C, design pressure of 0.25 MPa, steam source of Built-in electric generator, heating power of 6-40 kW and temperature uniformity of ±1 °C in load. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Horizontal Steam Sterilizer with Built-In Steam Generator is used in laboratory and clinic instrument sterilization, glassware and media preparation, pilot-scale pharmaceutical loads and facilities without plant steam. Across the wider Steam Sterilizers class, laboratories also deploy it for sterile processing of instruments and glassware, pharmaceutical media and buffer sterilization and sealed liquid loads in bottles and ampoules.

Which standards and certifications apply?

Relevant standards and methods include EN 285, EN 13060, ISO 17665-1, ISO 11140-1, EN ISO 11138-1, HTM 01-01 and ISO 13485 manufacturing. Certification candidates for this model are CE, ISO 13485 manufacturing and PED 2014/68/EU pressure vessel documentation; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Install the sterilizer on a level floor near a drain, with clearance for door swing and service access, and confirm the electrical supply suits the installed power, which can reach 40 kW for generator-equipped models. Verify steam supply pressure, dryness and absence of non-condensable gases before commissioning, since poor steam quality causes failed cycles. Validate with thermocouples in the load and with biological indicators such as Geobacillus stearothermophilus spores. Perform daily warm-up and air-removal checks, weekly steam quality and safety-valve checks, and annual calibration of temperature and pressure instruments. Maintain door gaskets, steam traps, filters and vacuum pumps on schedule, and keep records for the pressure-vessel inspection interval required locally.

How do I select the right Horizontal Steam Sterilizer with Built-In Steam Generator?

Select this variant when no reliable plant steam exists or when steam quality cannot be controlled. Compare chamber volume with the largest load plus 20 to 30 percent free space, and check that installed power suits the site supply. Specify temperature range, vacuum capability, drying performance, door type, control and recording system, and feed water quality requirements.

How does it compare with other Steam Sterilizers variants?

Begin with the load: wrapped instruments need pre-vacuum cycles, sealed liquid bottles need steam-air mixtures with counter-pressure, and process lines need continuous or in-situ sterilization. Then choose the steam source. House steam is economical but depends on plant supply quality and availability, while an integrated electric generator gives independence at higher running cost and electrical demand. Match chamber volume to the largest load and allow 20 to 30 percent free space for steam circulation. Check the achievable cycle range, temperature uniformity, control and recording system, door type, vacuum capability and the documentation needed for validation. Confirm local pressure-vessel rules and the permissible steam supply pressure before ordering.