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About Us

Gansu Hongfeng Machinery Co., Ltd. is located in Pingliang City, Gansu Province, an important town in the center of the ancient Silk Road and Shaanxi, Gansu and Ningxia, and is a high-tech enterprise restructured and reorganized by the state-owned 920 Factory, a large-scale second-class military enterprise, and a backbone enterprise of strategic emerging industries in Gansu Province.

Service

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.

Quality

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.

News

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.

ES211(ES221)

Nominal size DN: 15~20, 15, 20, 15~50

Connection: internal thread, flange

Nominal pressure PN: PN63, PN100

Differential pressure range MPa: 0.035~2.8

PMA/TMA PMa/℃: 2.8/427

Housing material: 0Cr18Ni9

Service Support Selection reference Hongfeng Classroom

Download ES211(ES221)

Features

1. The spherical seal is used to increase the wear resistance, and the valve core is deeper into the valve seat, so as to maintain the tightness, and the valve core and bracket are matched with the specially designed lever. The spool is "free-floating" inside the bracket, avoiding rigid collisions when closing.

2. Effectively conserve energy, there is a water seal and lifting mechanism inside the bucket, so there is no steam leakage.

3. The top of the bucket is equipped with an overflow exhaust hole, which can effectively prevent steam gas lock and air blockage (non-condensable high-temperature air can also be excluded).

4. It can withstand high back pressure, resist water hammer, and is designed with a 360-degree rotary joint and built-in filter, which is easy to install and clean.

Application: It is suitable for medium and low pressure and medium and low flow steam pipeline heating equipment.

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