Based on international standards and using the company's engineering ability experience and technical know-how, Omran Gas Puya is the one and only national standards branded company in development and production of diversified products. Providing after-sales services for customers is an important commitment for us. As we are always on track to achieve our goals and believe in our success, we are proud to announce that all products have one-year warranty refer to the following international certifications: - ISO 9001 - 2015 Quality Management System. - UL 125 Valves for Anhydrous Ammonia and LP-Gas. - UL 132 Safety Relief Valves for Anhydrous Ammonia and LP-Gas. - National Iranian Standard No.8344 as: Industrial Valves used in liquid and ammonia without water. - National Iranian Standard No. 7910 as: Safety Relief Valve for liquid gas and ammonia without water. The standards above are in accordance with NFPA, UL, DIN, ANSI and national standards of Iran No. 841 This collection with expertise and experience of reputable domestic and foreign industries such as Rego, Fisher and Rochester has the ability to compete with products in all around the world based on customer's requirement. In this regard, planning and equipping plant to the latest technology is one of the most important industries in the Middle East in terms of quality of products produced.