Rexroth Filter

1.     Brief Introduction

The 350LE(N) filters are suitable for direct installation into pressure lines. Most of them are equipped with upstream open-loop or closed-loop control units for protection.

2.     Basic Components

The basic components include the filter head (1), screw-in filter bowl (2), filter element (3), and visual maintenance indicator (4). For filters with low-differential pressure stabilizing filter elements (= differential pressure code letter A), a bypass valve (5) is also equipped. For size 0160, the standard equipment includes a drain plug (7).

Generally, the filters are equipped with a visual maintenance indicator (4). Electronic maintenance indicators are connected to one or two switch quantities (6) via electronic switch elements, which must be ordered separately. The electronic switch elements are attached to the visual maintenance indicator and secured with a locking ring.

3.     Working Principle

     Hydraulic oil enters the filter element (3) for cleaning through port 1. Dust particles are filtered out by the filter element and remain in the filter bowl (2) and filter element (3). The filtered hydraulic oil then enters the hydraulic circuit through port 0. The filter housing and all connecting elements are designed to safely absorb pressure peaks—such as those that may occur when a large flow control valve is suddenly opened due to accelerated fluid impact.

4. Technical Parameter

4.1 General

Mounting: Horizontal

Temperature:-30℃~+100℃(-22°F~+212°F)

Material：Filter Head GGG

                Filter cup Steel

                Visual maintenance indicator Copper

                Electronic switch element Plastic PA6

4.2 Hydraulic

Max working pressure 250bar

Hydraulic oil Temperature range: -10 °C to +100°C 

Fatigue strength according to ISO 10771: >10⁶

Opening pressure of bypass valve 7 ± 0.5bar

Pressure measurement type of maintenance indicator: Differential Pressure

4.3 Filter Element

Material: Glass Fiber

Differential Pressure: A=30bar B=330bar

Company Overview

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.

With advanced manufacturing equipments, sophisticated production technology, sound quality assurance system, we have passed the ISO 9001:2015 quality management system, ISO 14001:2015Environmental Management System, OHSMS18001:2018Occupational Health and Safety Management System, Design and Manufacture License of Category A1, A2, Design and Manufacture certificate of authorization and Regulation Stamping by the American Society of Mechanical Engineers (ASME)with U stamp.

The products are mainly applied for petroleum, chemical, coal chemical, nuclear power, gas turbine generation, and wind power, coal-fired power generation, engineering machinery, and coal mining, etc, industry.

Shengda Filtration provides design and fabrication for hydraulic filter, oil filter purifier, metallic sintered filter element, metal candle filter, wedge wire screen, Johnson screen series, and filter material, etc. 

Company Certificate