Dual Plate Check Valve Wafer Type

DUAL FLAP WAFER CHECK VALVE   

Main Features :

DONGSHENG Dual Flap Wafer Check Valve is designed to operate with the minimum of flow restriction.

 The twin spring loaded half disc operate with the pipeline flow and reseal back against the rubber disc seating providing a positive shut off against any back flow . The resilient seating prevent a slamming action .

  Check Valves offer greater flexibility and low cost in most piping systems and moreover , of its light weight , it is so convenient to install and has smaller face to face dimension than conventional swing check valve .

  These valves can be supplied to match the international standards of flange (DIN,ANSI,JIS & BS) .

  DongSheng check valves when compared with order traditional isolating valve such as swing check valve offer the following advantages:

Low purchase cost

Compact design

Non-slam principle of operation

Light weight

Easy installation

Good flow characteristic and less pressure drop

Suitable for horizontal and vertical up flow

Typical Applications:

Heating air-conditioning pipe lines
High frequency lines
Fire extinguishing system
Vessel pipelines
Iron and steel industry
Mineral, oil industry
Wood working, pulp and paper industry
Textile industry
Water and condensate lines

Applicable fluids:

Water , warm water , sea water , air and weak acid

Materials list

Factory Show

Product Package


 

LINA Mass Production Two Roll Mill

LINA Mass Production Two Roll Open Mill is designed for plasticizing, mixing and performing. And cooling system, heating system or double functions system (cooling and heating integrated) are available to meet the mixing requirements of a variety of materials. Multifunctional options and comprehensive safety devices ensure easier operation and lower maintenance rate and improve flow production efficiency.

 

LINA mill roller is made of high quality carbon steel, which is treated by nitriding and the surface hard chromium polished. The medium of hole roller ensures the body cool quickly and evenly, which depend on uniformity and consistency of the thickness of the sheets.

 

Main features:

1. Multifunctional options and comprehensive safety devices not only protect operators' security but also improve production efficiency.

2.Environment-friendly and user-friendly to reduce energy consumption and cost.

3.Intelligent PLC control system records and exports data accurately and easily, which ensures the stability of formula.  

4. Instead of traditional methods to ensure user's operation safety, LINA's patented safety devices protect the user from the root of danger.

 

Advantage of LINA Open Milling Machine

1. LINA mass production mixing mill roller is made of high quality carbon steel, which is treated by nitriding and the surface is polished hard chromium. And the medium hole of the roller ensures the cooling efficiency.

2. The brand of LINA reducer achieves excellent transmission and long service life with less energy consumption but large torsion, the gear is made of 42 chromium-molybdenum high-rigidity material, subjected to nitridation treatment.

3. LINA two mill roll of motor-driven and speed-decreasing roll pitch regulation is not only improving the work efficiency but also making the uniformity and consistency of the thickness of the materials. 

 

Technical Datum of LINA Mass Production Two Roll Open Mill

No.	Item	Specifications
1	Type	LN-300/12	LN-360/14	LN-400/16	LN-450/18	LN-550/22	LN-560/24
2	Roller Diameter	300mm	360mm	400mm	450mm	550mm	560mm
3	Roller face width	700mm	900mm	1000mm	1200mm	1500mm	1530mm
4	Linear Velocity of Front Roller	11r/min	12r/min	10r/min	10r/min	8r/min	8r/min
5	Velocity Ratio of Rollers	1:1.3	1:1.3	1:1.3	1:1.3	1:1.35	1:1.3
6	Maximum Roll pitch	10mm	10mm	10mm	12mm	16 mm	15mm
7	Machine Output(kg)	15-18 per time	15-25 per time	20-35 per time	30-50 per time	50-70 per time	50-70 per time
8	Motor Power	15KW	37KW	45KW	55KW	110KW	160KW
9	Total Weight	About 3000KG	About 6500KG	About 8000KG	About 10000KG	About 22000KG	About 22500KG
10	External Dimensions(mm)	3000* 1200*1100	4200* 1800*1800	4920* 1780*2100	5200* 1880*2100	6650* 2740*2100	6850* 2840*2100

 

Mass Production Two Roll Mill

Rubber Mass Production Open Mill,Plastic Mass Production Open Mill,Mass Production Two Roll Open Mill,Rubber Seal Rings Production Line

LINA Machinery Industrial Co.,Ltd , https://www.linakneader.com