1. The chemical element and physical property can reach ASTM national standard for valve material. (We offer the mill certificate for each product).
2. The valve stems are machined by the accurate grinding machine and suit for applications after carrying out different heat treatment according to special requirements.
3. Valves are tested strictly according to API 598, ISO 5208, GB/T13927 etc, without leakage during air and hydraulic test.
4. Valve parts are made strictly according to machining technology to assure the dimensions accuracy for inter changeable usage. The tolerance of basic dimensions conforms to national standards ANSI B16.5, ANSI B16.10 and GB1800-1804-79 etc.
5. Internal cavity and appearance for each valve product should be grinded carefully, paint superior anti-rust oil in the internal cavity, and external paint is according to the client's requirements.
6. Our company is available to design and produce non-standard valves according to the requirements if being requested, and paint and pack all the valves with plywood cases free of charge for seaworthy transporation.
7. Guarantee 18 months quality from the date of delivery. If there is any quality problem in guarantee period for normal operation and use, we are responsible to change or repair and bear the transporat freight.
8. It is available to supply installation, maintenance and/or adjustment instructions, and related technical information.
9. The customer may place an order by phone, our sales representative assures to supply the products with high quality, efficient service and fast delivery.

If being requested by our customer, we can also make the following non-destructive testings:

1. Dye Penetrant
2. Magnetic Particle
3. Ultrasonic
4. X-ray Radiography
5. Electromagnetic

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