quick blowdown valve

Overview:
quick blowdown valveNot only does it have a simple structure and good sealing, but it also has a small volume, light weight, low material consumption, and small installation size. Especially for the periodic discharge of high-pressure boilers with a discharge valve pn ≤ 2.0MPa, it can discharge from five channels simultaneously or from one channel.

structural principle
It relies directly on the force generated by the medium pressure to assist the mechanical load seal acting on the valve disc,The mechanical load acting on the valve disc mainly comes from the compression spring, which is an almost fixed mechanical load. Although for compressed springs, the loaded drain valve can achieve good sealing by adjusting the spring force, the sealing pressure difference must be strong enough to ensure sufficient sealing force to achieve sealing during normal valve operation. The sealing pressure difference should also be less than the opening and closing pressure difference to ensure flexible opening.

Main standards
1. Design and manufacture according to the provisions of GB/T12237-1989.

2. Inspection and testing shall be conducted in accordance with the provisions of GB/T13927-1992.
3. The flange size shall comply with the provisions of JB79-59.
4. The pressure temperature rating shall comply with the provisions of GB9131.
5. Compression springs shall comply with the provisions of GB/T1239.2.
6. The structural length shall comply with the provisions of JB/T6900-93.
7. The logo shall comply with the provisions of GB/T12220-1989.

Structural diagram of boiler drain valve size:

Ordering Process

• Please fax the customer purchase list to, or
• Received the customer's purchase list and provided the customer with valve model selection and quotation (price list).
• Specific agreement: delivery time, special requirements, and other matters.

Ordering Instructions

• Customers have special requirements for the product and must provide the following explanations in the order contract:
  • structural length
  • connection type
  • Nominal diameter, full bore diameter, reduced diameter, pipe size
  • Application of medium, temperature, and pressure range
  • Experimental, testing standards and other requirements
• This venue can configure various driving devices according to customers' special requirements.
• When the customer provides the determined valve type and model, the customer should correctly explain the meaning and requirements of the model, and sign the contract under the condition of mutual understanding between the supply and demand parties.

Service Commitment

Professional manufacturing, professional services,Zong LiCreate more value for you

Continuously improving service quality, striving for excellence, "sincere service" isZong LiThe eternal theme.Zong LiStrictly follow the requirements of ISO9001-2000 quality system certification, strictly control the quality, assign responsibility to individuals, and ensure the healthy operation of production, sales, and services. To strengthen communication with users and wholeheartedly provide high-quality products and excellent services to our customers, we hereby make the following commitment:

product standard

The product is designed, manufactured, and inspected strictly in accordance with Chinese GB, HG standards, and American API standards. The hardness of the sealing surface meets the national requirements and the width exceeds the national standards.

pre-sales service

Product introduction, technical exchange, non-standard product design, troubleshooting

in-sales service

• Maintain a trustworthy contract, ensure timely supply, and keep in touch with customers at all times
• For special or complex products, our factory arranges technical personnel to provide training and guidance to users on product usage, troubleshooting, debugging, and maintenance.

after-sales service

• Zong LiThe product warranty period is 12 months from the date of leaving the factory, and the "three guarantees" service (return, replacement, and repair) is implemented.
• Our factory regularly organizes technical and inspection personnel to visit the product during use, seeking feedback from users on product quality, usage status, improvement suggestions, etc., in order to further improve product quality.
• To respond quickly to customer complaints about product quality issues, after-sales service personnel will rush to the scene within 24-36 hours (48 hours outside the province).
• For after-sales service, users are required to fill out the quality feedback form after service and provide appraisal opinions, while improvingZong LiThe quality of service