1. Brief Introduction

The Johnson Support Grid for absorption system is composed of several Johnson screens, grids, beams, bolts, catalyst transfer tubes, manholes amd sealing ropes. Xinxiang Shengda Filtration Technique Co., Ltd, is also available for support beams, catalyst transfer tubes, manholes, sealing ropes, bolts and all necessary accessories. We are engaged in designing and manufacturing filtration products since establishment in 1998. We has design and manufacture a series of grids for dielectric retention. Due to its strength, durability and flow characteristics, our support grid systems are widely used in hydrogenation reactors, desulfurization reactors, molecular sieves, gas desulfurization reactors and other absorption systems. 

Among these innovations, a flat screen is commonly used for downcomers or upwelling systems to retain expensive media and to provide collection area for process fluids along the diameter or length of the entire container. Our catalyst support grid can be used for strict dielectric support conditions and can be maintained for a long period of time, realizing a number of benefits:

1. High mechanical strength: Our support grid is made of V-shape wire and support rod that are specially welded on large welding machine. Even in processes such as hydrocracking and desulfurization reactors, it can easily withstand collapse or bending.( In these reactors, the support grid must bear a load of 350 kpa or more.)

2. Accurate medium retention: gap width as small as 0.05 mm, reliable retention of fine catalysts, resins or molecular sieves. Although the width of the grid gap is small, the  support grid has a larger total area of opening than the device with ordinary wire mesh.

3. A stable surface: Unlike a common screen, the Johnson screen support grid can hold the media directly without the need for an inert ball intermediate layer. The smooth surfaces of these Johnson screen support grid can also reduce wear.

2. Parameter and Characteristic

2.1 Basic Data

2.2 Technical Parameter

Materiel: 304, 321, 316L,904L, duplex steel 2205, duplex steel 2207, Monel.etc

Applicable code: contour welding stainless steel pipe (SY5182-87)

Specification and size is customized.

3.Company Profile

3.1 Company Introduction

Xinxiang Shengda Filtration Technique Co., Ltd, is engaged in designing and manufacturing filtration products since establishment in 1998. Many professional engineers, experts devote to filtration & purification research and applications to offer technical support for the product designing and manufacturing. We has advanced manufacturing equipments, sophisticated production technology, sound quality assurance system.

3.2 Product Application:

Products are mainly used in petroleum, chemical, coal chemical, nuclear power, gas turbine power generation, wind power, coal-fired power generation, construction machinery, coal mining and other fields.

3.3 Company Advantage

• We have many certificates about the design and manufacture of pressure vessel.

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• The type, supply quantity and application field of our product are far ahead of other domestic manufacturers. We have the most complete product chain: metal sintered filter material-filter element-filter container-set of equipment--laboratory-filter cleaning and regeneration. This chain ensures that we can produce high quality product with relatively low cost.

• We have cooperated with many companies in the world such as SINOPEC,SEI, CNOOC,SABIC., BASF, BP p.l.c ., Petroleum Authority of Thailand, PetroKazakhstan, etc

• We have advanced filter element testing equipment such as filtration and purification engineering technology research center, filtering and separation technology joint laboratory, gas turbine air filter EN779 test room, etc.

• The company has set up 21 offices in China, from project follow-up, equipment delivery, spare parts replacement, etc. to provide meticulous and considerate services to the owners. In terms of international market, the company has set up an office in Dubai, which radiates the entire Middle East market, while the distribution and sales channels of North America and Central Asia are steadily advancing.

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