DL-8 series Sectional hydraulic control valve for crane

Product Application

Hydraulic sectional directional control valve is controlling component of the hydraulic system,which is used for adjusting the direction,pressure and flow.The valve is widely used in the hydraulic system of forklift,sanitation vehicle and light loading machines.Comparing the monoblock directional control valve,sectional directional valve's biggest advantage is this kind of valve are suitable for users to assemble on their own，which also can reduce stocks.

Main Features

Sectional types with 1 to 12 working sections.
Operaton methods:manual control;handle+pneumatic control;hydraulic control.
Joining port: L（screw connection）
Selective spool functions:O, Y, A, Q, D, P, M, K
Oil circuit modes:parallel;serial;parallel&serial combine
Nominal diameter:G1/2;G3/4;G3/8;M16*1.5;M18*1.5;M22*1.5;M27*2;M33*2

Machine material

part: valve body

Material: casting iron（HT300）

Feature：It belongs to a kind of gray iron which has corrosion resistance that is improved over steel in certain environments,it also has good wear-resistance.

Machine material

part: valve spool
Material: compound metal（20CrMnti）
Feature：small machining deformation；

                  good anti - fatigue performance

Surface processing

Name: electrophoresis

Part:    valve body  （take DF-50 for example）

Feature:Electrophoresis paint  is a very environmentally friendly products, it will not have any negative effects on the machinery.Also the paint has good corrosion resistance, protecting the valve body against outside influences which increases the service life of the machine.

Surface processing

Surface processing

Name: blue-white zinc plating treatment.
             (72 hours of salt spray test)
Part:    bolts and nuts
Feature:excellent anti-corrosion properties，No-Rust

Guarantee.

Surface processing

Name:1. polishing treatment

            2. blue-white zinc plating treatment

part:    end cover，supporter cover

Feature:excellent anti-corrosion properties