GYLDT`s main products are series of Gate valve,butterfly valve,flap valve,Duckbill Check Valve,dismantling joint, flange joint,Rubber Expansion Joint,pinch valve,etc. Good production equipments,testing equipments and professional staff are key factors of making good brand products of GYLDT, which enjoy highly reputation of customers both at home and abroad.

Company details

8th Fumin , zhengzhou , henan 450000 China

Locations Served

Business Type:
Manufacturer
Industry Type:
Manufacturing, Other
Market Focus:
Globally (various continents)
Year Founded:
1980
Employees:
Over 1000
Turnover:
more than 1,000,000,000 €

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Pinch valves,the simplest valve design,include any valve with a flexible elastomer body that can be pinched close to cut off flow,using a mechanism or fluid pressure.They are linear motion valves that can be used to start,stop and throttle media through a system.Pinch valves are low maintenance,low weight,and can be used in systems requiring explosion proof line closure.While the design of pinch valves provides extensive advantages for use in sterile lines and in situations where product purity is a high priority,these same design features do create some disadvantages.Due to their elastomeric bodies,pinch valve is not viable in situations where the transport media is at a high temperature.They are also not recommended for services that require high pressure flow,and for use with gases.
We love hearing from our customers and value your feedback.Here are ways to contact Liangda.24 hours a day, 7 days a week.Email:sales@liangda.net
Web:http://www.gyldt.com/

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The buried gate valve is the key applied project by'11th five-year development technical bulletin' from the ministry of construction. It can be directly buried underground without building inspection shaft in order to save excavation space,which keeps pavement beautiful, reduces difficulty of construction and saves engineering cost as well.

This kind of gate valve can also adjust the distance from the buried point to the ground.the
gate valves for water has advantages of long design service life-30 years,maintenance free,etc.it is also able to avoid the phenomenon of opening valve and stealing inspection shaft lid and hurt from missing inspecting shaft lid.

The gate valves has light switch and novel design,the bonnet ,covered by special rubber entirely,achieve the state of no leakage.it adopted reliable
otype sealing ring without pressing disk root,and without maintenance.the product adopted Non-toxic epoxy resin electrostatic layer technology,which will meet the need of drinking water without rust water.

We love hearing from our customers and value your feedback.Here are ways to contact Liangda.24 hours a day, 7 days a week.Email:sales@liangda.net  Web:http://www.gyldt.com/

 

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Lug butterfly valve is made of rubber sealing, valve plate and valve stem. Temperature of lug type butterfly valve: 80-120 C degree Application: foodstuff, medicine, chemical, petroleum, power, textile, paper. Water supply and drainage pipeline, throttling and shutting off the flow. Features and Benefit of lug wafer butterfly valve:
1, Modern design, reasonable, light weight, quick opening and closing.
2, Easy to operate, labor-saving.
3, Easy installation, maintenance free.
4, Seal can be replaced, reliable sealing, bidirectional zero leakage.
5. Sealing material of
butterfly valve: anti-aging, corrosion-resistant and long service life.
Design standard is according to DIN, ANSI/BS/JIS/EN are also available upon request.
Standards of
wafer lug butterfly valve:
Design standard is according to DIN, ANSI/BS/JIS/EN are also available upon request
 We love hearing from our customers and value your feedback.Here are ways to contact Liangda.24 hours a day, 7 days a week.Email:sales@liangda.net Web:http://www.gyldt.com/

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Duckbill Valve, widely used in the demanding applications of many industries, are precision-molded, one-piece elastomeric valves that provide reliable backflow prevention at low pressure differentials.  Duckbill valves rubber  allow free flow with positive differential pressure.  With negative differential pressure, backflow is checked.  Pressure drop across the valve is a feature unique to rubber duckbill check valveThey can be designed to operate in a few millimeters (inches) of water to several hundred kPa (psi), depending on valve size, geometry and compound characteristics.  Duckbill Check Valves are also designed to start functioning at specific opening and closing pressure ranges, depending on your specifications.We love hearing from our customers and value your feedback.Here are ways to contact Liangda.24 hours a day, 7 days a week.Email:sales@liangda.net Web:http://www.duckbillvalve.net/

 

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Flapper check valve Cost-Effective Valve Superior Quality Backflow Prevention Supply Range is From DN300mm to DN3000mm Low Headloss and Maintenance FreeFeatures and Benifits of flap valve

·          Customized Shape or Other Shape Available

·          Reliable backflow prevention

·          Smart design eliminates maintenance 

·          Corrosion resistant, will not warp or freeze open or shut

·          No cracking pressure needed, low head loss, can be completely open to flood discharge

·          Environmentally-friendlyWe love hearing from our customers and value your feedback.Here are ways to contact Liangda.24 hours a day, 7 days a week.Email:sales@liangda.net Web:http://www.flap-valves.com/

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The Liangda flexible expansion joint JGD-B2 are double arch designed with integral rubber flanges for tough, demanding industrial applications, as found in: Chemical/Petrochemical Plants, Industrial Process Piping Systems, Marine Services, Power Generation Plants, Pulp/Paper Plants, Steel Mills, Water/Wastewater and Pollution Control Systems. Installed next to mechanical equipment or between the anchor points of a piping system to: (1) Absorb Pipe Movement/Stress (2) Reduce System Noise (3) Isolate Mechanical Vibration (4) Compensate Alignment/Offset (5) Eliminate Electrolysis,(6) Protect Against Start-Up Surge Forces.

The Liangda Double Arch joint rubber JGD-B2 is a twin sphere design with more length, the supply range is from 500mm to 1000mm, and design pressure can be 1.0MPa/1.6MPa/2.5MPa. Compared to Rubber Expansion Joint(JGD-1, JGD-2, JGD-3), mechanical and acoustical performance can be almost double by changing to the most commonly specified twin sphere construction. Twin sphere designs are more flexible and allow greater movement.We love hearing from our customers and value your feedback.Here are ways to contact Liangda.24 hours a day, 7 days a week.Email:sales@liangda.net Web:http://www.flexible-rubber-joints.com/