Gansu Hongfeng Machinery Co., Ltd., located in Pingliang City, Gansu Province, is a high-tech enterprise restructured and reorganized from the large-scale second-class military enterprise, the state-owned 920 Factory. It specializes in the research, development, and manufacturing of energy-saving products such as drain valves and condensate water recovery devices.
In the course of specializing in the production of energy-saving products and energy-saving devices such as traps and condensate recovery devices, "Hongfeng" takes the revitalization of the national equipment manufacturing industry and the creation of a national brand of traps as its own responsibility, closely tracks the development trends of science and technology and production trends, adheres to the technological innovation strategy of "no one has me, no one has me, no one has me, and I am new", and has realized the transformation from technology introduction, reference and absorption to independent innovation and independent development.
Based on the strict requirements of the steam system for the reliability, stability, durability and safety of pump and valve equipment, the company has established a complete set of quality assurance and control systems including procurement management, production control, performance verification, quality inspection, after-sales service, etc., and wholeheartedly escorts high-quality products.
We always respect and love our customers, and regard them as friends and siblings, and dedicate perfect services with a grateful heart, because customers are the pillar and source of our career success.
Nominal size NPS: ½ ~ ¾ ½ ~ 1 ½ ~ 2
Connection: socket welding, flange
Nominal pressure Class: 600
Pressure difference range bar: 7.0 ~ 70 0.1 ~ 17 0.1 ~ 45
PMA/TMA bar/℃ : 70.0/425 51.5/500
Shell material: F11
1.Spherical seal design enhances wear resistance, with the valve core seating deeply into the seat to ensure reliable sealing. The valve core and bracket are matched with a specially designed “super lever,” allowing the core to float freely within the bracket to effectively absorb impact and avoid rigid collisions during closure.
2.Energy‑efficient design with an internal water seal and lifting mechanism inside the bucket, effectively preventing steam leakage and minimizing thermal energy loss.
3.An overflow vent at the top of the bucket effectively prevents steam lock and air binding (non‑condensable high‑temperature air can also be discharged).
4.Capable of withstanding high backpressure (up to 90%).
5.Resistant to water hammer.
6.ESH401 is suitable for superheated steam lines, featuring a unique dual‑chamber design that maintains water seal integrity during each discharge cycle to prevent steam leakage caused by insufficient condensate under superheated conditions.
Application: Suitable for medium and low pressure steam condensate flow equipment. Used in petroleum, chemical, metallurgical, papermaking, pharmaceutical, food, and other industrial steam equipment.
