BRIEF INTRODUCTION

Resilient-seated gate valve,which is our company cooperated with Shanghai University toimpolder the high-quality green product, and it is bring the advanced technology in Germany.And obtained the P&R&D item in No.3 in Shanghai, the new technology ,new material ,andnew technics are applied that flat bottom type ,and static spray innocuity EP inside and outsidesurface of valve ,gate disc is covered with rubber etc. it is improve the seal capability,anti-corrosion, life-span and so on each capability index are further excellent than the old .andreceived good graces from all over the world. This valve widely applied in the liquid pipes foropening or closing fixing in such table-water , sewage disposal, energetics pipe , foodstuff andmedicine ,air-condition system, fire protection system, building etc.

FEATURES

Shot-blasting

protective surface finished by shot-blasting and the surface is smooth and neatness.

Flatting seat

Smooth continuous bore way without seating recess, it is not easy to get impurity pilled up.Making the liquid straightway .

Treating with rubber

Both inner and outer are coated with advanced knowledge of rubber vulcanization then makingsure of the elasticity of rubber ,and make sure the exact geometry dimension. Rubber andductile cast iron valve hand together hardly. Which can avoid fall-off due to long-term use .

Anti- corrosion

Both inner and outer are coated with non-toxic powder epoxy resin to strengthen the capacityof Corrosion resisting and raise the quality of water supply .

Ruggedization

The older ductile iron valve is easy to rupture after being impacted by nonego. It can stoprupture depend on the good mechanics capability of ductile iron .

Three "O" sealed ring

With the three "O"- rings, the leakage can be greatly reduced and the "O"- ring can bereplaced under this condition with pressure and without stopping water. The thrust axletreereduces the frictional resistance and lowers the operational torque. And it can be switch sealring without opening and closing.

Rigid round body

The body is founded minutely, the rigid geometry size ensure inner sealing of valve withoutany process.

Light weight

This body is made of ductile iron, it is 20%-30% lighter than the olds. Easily to fixing and servicing.

TECHNIC CRITERION
Nominal pressure:1.01.6MPa
Applicable medium:water sewage oil etc.
Applicable temperature:≤120oC
Main material of valve:duticle iron ,iron.

APPLICABLE STANDARDS
American Standard
Design to ANSI/AWWA C509
Face to face dimension to ASME B16.10-2000(ISO 3 series)
Flange and drilling To SME/ANSI B16.42-1998
British Standard
Design to BS5163BS5150
Face to face dimension to BS5163(ISO 3seriesISO19 series)
Flange and drilling To BS4504 part1(EN1092)
Germany Standard
Design to DIN3352
Face to face dimension to DIN3202(F4:ISO 14 series;F5: ISO 15 series)
Flange and drilling to BS EN1092
Chinese Standard
Design to CJ/T219-2005
Face to face dimension to GB12221(3) (ISO14 series) GB12221(15)(ISO 15series)
Flange and drilling to GB/T17241-1998

Resilient seated rising stem British standard, outline and connecting dimension according toBS5150(ISO 3 series);BS4504.3.2-89(PN1.0MPa,10 bar)
Resilient seated rising stem Chinese standard, outline and connecting dimension according toGB12221-89(3)(ISO 3 series); GB/T17241.6-98(PN1.0MPa,10 bar)