CV-LY-009 Wafer Butterfly-type Sewage Check Valve Dn80

wafer butterfly-valve sewage check valve

this flap sewage check valve is our main products.sewage check valve is used in fresh water/sewage water/sea water medium.this butterfly-valve sewage check valve is control by the water flow ,is unidirectional water flow .

1.brief introduction of sewage check valve

sewage check valve a save-energy product ,is manufactured based on the foreign advanced technology and in accordance with relative international standards .sewage check valve is featured by execellent retaining performance,high safety and reliability and low flow resistance .sewage check valve is suitable for systems in the industries of perochemical ,food processing ,medicine ,textile ,paper-making ,water supply and drainge ,metallurgy ,energy and lightindustry etc used as a check valve in one way .

2.Technical data of sewage check valve

Nominal diameter DN(mm):50(2'')~700(28")/50(2'')~450(18")

Nominal Pressure PN(mm):1.0~1.6MPa

Testing Pressure :Shell:1.5~2.4  Sealing:1.1~1.76

Suitable Mediums:Fresh water ,Sewage,Sea water,air,steam,food,medicine,oils,acids etc

Working temperature:-23~+93

3.Feature of sewage check valve

1. Small in size, light in weight, compact in structure, easy to maintenance
2. Two torsion springs are used excreting on each of the pair valve plates, which close the plates quickly and automatically.
3. The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.
4. This valve is short in length, so that it is rigid and easy to mount.
5. “it is easy to install on pipeline which is laid horizontally or vertically.
6. This valve is tightly sealed, without leakage under the pressure water test.
7. Safe and reliable in operation, high interference-resistance.
8. The connection dimensions of flanges accod with the standards of Gb4216.4-4216.5-84
9. The face to face dimensions are in accordance with GB12221-89 ISO5752-82 

4.Attention:The stem of the sewage check valve should be perpendicular to the horizontal level when the valve is mouted on horizontal pipeline.For vertical in stallation the direction of flow should be downward.

5.Our company introduction

Tianjin Ots Valve Manufacturering Co., Ltd.,  a jointed company, established during the time of China Reform and Open to the World. specializing in all kinds industrial butterfly valves with 13340 meters, including 8600m work shop, fixed finance of RBM 200 millions  as well as some advanced design, processing, assembling and  testing for all butterfly valves. Further we are rich in the experience of producing butterfly valves over more than 10 years, all of the butterfly valves we produced come up to the advanced standard home and abroad.  

6.Our factory

7.Our Machine shop

8.Our valve testing machine and working shop

9.Our certificate

Quality Management System Certification 

---CE 0038 Certification

---ISO 9001: 2008 Certification

---Registration Certificate of Consignors and Consignees of Imports and Exports

---Certificate of approval

---PED Certification

---SHA Certification

---60055802 Certification

---KS Certification

---TS Certification

---Business license 

---Organization Code Certificate 

                              Tianjin OTS valve manufacturer welcome to you