Zd Series Multiple Directional Control Valves Used in Construction Machinery

Product Description

Company information
 

GUORUI HYDRAULIC

GRH specialized in providing hydraulic components and solutions for hydraulic systems

 

With continuous improvement and enthusiasm over the past 30 years, GRH has developed into an emerging

Power in the fluid power industry since it was established in 1986.

Research and development are the driving force that facilitates GRH's ability to create new products.Standards of TS16949 and ISO14000 are our guiding principles.Employees' capabilities and creativity are major factors that differentiate GRH from our competitors.

GRH designs and produces Hydraulic Gear Pumps & Motors, Monoblock Valves, Sectional Stack Valves, Proportional Valves and Flow Dividers.These products are used on industrial machinery, construction equipment, agricultural equipment and material handling applications.GRH is also willing to work with our customers to develop specialized products for their special needs.Our customers can count on GRH's extensive system design and application experience when they are designing their hydraulic systems.

GRH has designed and developed a series of load sensing proportional stackable valves which provides an improvement in valve operating performance and system efficiency.

GRH (Shanghai)  - International Sales Office

GRH (Jiangsu)  -  Manufacturing Facility and Domestic Sales Office

Production Description

Major Technical Data
Rated flow rate:	45 L/min
Maximum flow rate:	100L/min
Maximum pressure at P port:	350 bar
Maximum pressure at A/B port:	350bar
Maximum pressure at T port:	25 bar
Internal leakage(at 70 bar):A/B to T	15-20 cc/min
Temperature range of the hydraulic oil
with NBR(BUNA--N)seals:	-20ºC-80ºC
with FPM(VITON)seals	-20ºC-100ºC
Spool stroke(1/2 position):	+7/-7mm
With floating function (1/2 and F position)	+7/-7-10mm
Recommend temperature range:	-40ºC-60ºC

Packaging & Shipping

Our Services
 

GRH now has more than three hundred employees with 51 technical workers of all kinds. Its enterprise fixed assets is RMB forty two million with a space covering 22000 square meters. There are about 208 machines , outputting hydraulic components about 1.6 million pieces.

GRH has four centers and four branch plants
Design center, sales center, administration center and testing center
Gear pump and motor plant, hydraulic valve plant, heat treatment plant and system plant.

GRH will work together with the customers to create a better future

Partnership



FAQ

Q: What is our main application?

A: 1.Hydraulic system

   2.Agriculture machine

   3.Constraction machine

   4. Automobile:

   5.Local distributors

Q: What Is The Payment Terms.

A:Full order: 30% as deposit, the balance before shipment;

Small order /sample order: full payment in advance;

Q: Can I Mark My Own Brand On The Pump?

A: Yes. Full order shold mark your brand and code;

Q: What is our main export market?

A: America(45.5%):The United States, Canada, Argentina, Brazil 

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(18.5%):Korea,singapore,India,Turkey,Iran, Vietnam, Saudi Arabia, Syria, Israel, Lebanon

Others(5.8%):

Details:
 

Material: cast iron covers and aluminum body / full aluminum /full cast iron

Port: BSP,NPT,UNF etc

Shaft: Tang claw shaft,Tappered key shaft, spline shaft 

Front cover: 4-bolt rectangular flange,4-bolt square flange, 2-bolt SAE flange

Application: construction machine, agriculture machine,hydraulic system

Valve option: Pressure Relieve Valve,Flow Contro valve

Shaft seal: V(-10ºC~120ºC),H(-40ºC~80ºC),T(3~6bar), N(3~10bar)

 

Welcome to China,  Welcome to Shanghai, welcome for your visit!  

 

 

                                                                    GRH TEAM