FAQs
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Who is Sigmagas & Engineering?
Sigmagas & Engineering is a leading East African company specializing in the supply, installation, and maintenance of medical, industrial, laboratory, and LPG gas pipeline systems. We also provide related equipment, consumables, and training services.
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Where do you operate?
We operate across East Africa, with offices in Tanzania (including Zanzibar) and Kenya, serving hospitals, schools, industries, and commercial facilities.
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What is a Medical Gas Pipeline System (MGPS)?
MGPS is a safe and reliable network of pipelines that deliver life-saving gases such as oxygen, nitrous oxide, and medical air directly to hospital departments like theaters, ICUs, and wards.
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Do you only install new systems or also service existing ones?
We do both. We design and install new MGPS projects, and we also service, maintain, and upgrade existing systems to international standards.
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Which industries do you serve?
We serve a wide range of industries including manufacturing, food & beverage, pharmaceuticals, welding & fabrication, and research laboratories.
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Do you supply laboratory gas generators?
Yes. We supply and install laboratory gas generators (nitrogen, hydrogen, zero air) and reticulation systems for schools, universities, and research centers.
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Do you supply the equipment as well?
Yes. We provide oxygen plants, manifolds, compressors, vacuum pumps, and all pipeline accessories from trusted global suppliers.
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Can you install LPG systems in schools and homes?
Absolutely. We design and install safe LPG reticulation systems for schools, hospitals, hotels, and residential properties, ensuring compliance with safety standards.
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Do you provide LPG consumables and spare parts?
Yes. We stock regulators, valves, burners, and other essential consumables.
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Do you offer maintenance contracts?
Yes. We offer preventive and corrective maintenance contracts tailored to your facility’s needs. This ensures continuous reliability and reduces downtime.
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What is included in a typical service visit?
Inspections, safety checks, filter and consumable replacements, calibration, leak detection, and performance reporting.
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Do you provide training to hospital or industry staff?
Yes. We conduct hands-on training sessions for operators, engineers, and users to ensure safe handling and operation of gas systems.
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How do you ensure safety in your installations?
All our installations follow international standards (HTM, ISO, NFPA) and include safety devices, alarms, and emergency shut-off systems.
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Can you handle turnkey projects?
Yes. We manage projects from design, supply, and installation to commissioning and after-sales support.
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How do I request a quotation?
You can contact us through our website form, email, or phone. Share your requirements and we’ll provide a tailored proposal.
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Do you supply welding equipment and industrial gases?
Yes. We supply welding machines, consumables, and high-purity gases for industrial use.
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Why should I choose Sigmagas over other providers?
We combine technical expertise, international-standard installations, and responsive customer support. Our track record spans hospitals, schools, industries, and government projects across East Africa.
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Do you provide emergency response services?
Yes. We have dedicated technicians available to respond to urgent breakdowns or gas supply issues.
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Can Sigmagas help in sourcing consumables locally?
Absolutely. We stock essential consumables such as regulators, copper pipelines, valves, and filters, reducing the need for imports and minimizing downtime.
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Does Sigmagas offer project consultancy?
Yes. We provide consultancy services from project planning to commissioning, helping clients choose cost-effective and compliant solutions.
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How does Sigmagas ensure quality in its projects?
We follow strict quality control procedures, source certified materials, and perform pressure, purity, and safety tests before handing over projects.
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Do you work with international partners?
Yes. We partner with globally recognized equipment manufacturers for medical and industrial gas systems, ensuring durability and compliance.
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Which international standards do medical gas systems follow?
We design and install according to HTM 02-01 (UK), ISO 7396, NFPA 99 (US), and other applicable standards.
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Why are copper pipelines used in medical gas systems?
Copper is corrosion-resistant, durable, and maintains gas purity. It’s the industry standard worldwide.
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How often should medical gas systems be inspected?
At least every 6 months for critical systems, with annual full safety and performance testing.
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What are the typical servicing intervals for oxygen compressors and dryers?
Compressors usually require servicing every 2,000–4,000 operating hours, while dryers need filter and desiccant replacement every 4,000–8,000 hours depending on usage.
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What documentation is required for MGPS compliance?
Pressure test certificates, purity test results, installation drawings, and commissioning reports must all be documented.
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Do LPG systems require certification?
Yes. LPG systems must be inspected and certified by qualified professionals to ensure compliance with safety regulations.
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What are the main risks of poor gas system maintenance?
Risks include leaks, contamination, equipment breakdown, patient safety hazards, and costly downtime.
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How do you detect gas leaks in pipelines?
We use electronic leak detectors, pressure drop tests, and soapy water solutions for verification.
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What safety devices are mandatory in medical gas systems?
Zone valves, area alarms, pressure regulators, and emergency shut-off devices are essential for patient safety.
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What is the safe storage guideline for oxygen cylinders?
Cylinders should be stored upright, in a well-ventilated area, away from heat, flammable materials, and electrical sources.
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What training should hospital staff receive?
Staff should be trained on cylinder handling, emergency shutdowns, alarm recognition, and reporting faults.
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Are periodic fire drills required where gas systems exist?
Yes. Fire and emergency drills should include MGPS and LPG systems, ensuring all staff know response procedures.
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How do you handle waste gases or exhaust?
Medical vacuum and waste anesthetic gas systems (WAGD) must have proper exhaust lines to protect healthcare workers.
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How often should oxygen plants be serviced?
Routine servicing every 3 months, with major overhauls after 12–18 months depending on hours run.
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What is the lifespan of a PSA oxygen plant?
Typically 10–15 years with proper maintenance, though filters, valves, and compressors require replacement more frequently.
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How often should LPG regulators be replaced?
Regulators should be replaced every 5 years, or immediately if damaged, leaking, or showing wear.
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Do vacuum pumps need regular oil changes?
Yes. Vacuum pumps require oil replacement approximately every 2,000 operating hours or as per manufacturer guidelines.
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How do I know when to replace gas filters?
Filters should be replaced once pressure drops increase, efficiency reduces, or after the recommended service interval (often 3–6 months).
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What preventive maintenance reduces downtime the most?
Scheduled inspections, timely replacement of consumables, calibration of sensors, and keeping spare parts in stock.
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Can servicing be done without shutting down the entire system?
Yes. Most systems are designed with redundancy, allowing servicing of one line while the backup supplies gas.