How to choose the valve standard code

GB national standards

MT Coal Industry Standards

GB / T National Recommended Standard

HB Aviation Industry Standards

GBn national standard (internal distribution)

QJ Aerospace Industry standards

GJB national military standards

QB, SG Ministry of Light Industry standards

ZB Industry Standards (Professional Standards)

JZ, JG urban and rural Environmental Protection Department standards

ZBn Industry Standard (Internal Distribution)

CB China Shipbuilding Corporation standards

ZJB professional military standards

LD Labor and Personnel Standards

JB Machinery Industry Standard (formerly) Machinery Industry Ministry standards

JC National Building Materials Bureau standards

JB / Z (former) Ministry of Machinery Industry guidance document

JJC National Bureau of Metrology standards

EJ (former) Ministry of Nuclear Industry standards

CAS China Association for Standardization standards

YB Metallurgical Department standards

CVA China valve industry standards

HG Chemical Industry standards

Q / TH (former) Machinery Industry Ministry of Chemical General Machinery professional standards

SY (former) Ministry of Petroleum standards

JB / TQ Machinery and Electronic Industry General Machinery Industry Internal Standards

SD hydraulic power standard

H high pressure pipe, fittings and fasteners universal design standards

Foreign standard code

ISO international standards

AISI American Iron and Steel Institute standards

ANSI American National Standard

API American Petroleum Institute standards

BS British National Standard

MSS American Valve and Fitting Manufacturer Standards Association standard

DIN German national standard

AWS American Welding Association standard

NF French national standard

ASI American Society of Standards

JIS Japanese Industrial Standards

MIL US military standards

ASME American Society of Mechanical Engineers standards

JPI Japan Petroleum Institute standards

ASTM American Society for Testing and Materials Standards

Brief Introduction & Working Principle

when compressed air enter into the vacuum pump, simultaneously under the push of air cylinder, the empty door of hopper will be closed and the vacuum will be formed in the hopper. The vacuum feeding machine forms air stream under vacuum state. Under the action of this air steam the material which is conveyed will be transported to vacuum hopper through hose. Certain time later (feeding time, adjustable), the compressed air is closed, the pneumatic vacuum pump is unable to produce vacuum, simultaneously under the push of air cylinder the emptying door of hopper will be opened and the vacuum will be disappeared in the vacuum feeder. The material will be fed into receiving equipment from the emptying door (for example tablet press, packing machine and so on), simultaneously, compressed air that stores up in air packet's blowback the filter, and the filter cleans by itself. Certain time late (discharging time, adjustable), the compressed air starts again. Move in cycles, the material is fed into the equipment continuously.

The machine is well designed and produced, consisted of vacuum pump (non-oil & non-water), stainless-steel-made product sucking mouth, feeding tube, cloth filter (or 316 stainless steel filter), vibration cleaner (or compressed air blower), vacuum product hopper and product level control system. There are some different between when machine combined with packaging machine, pellet pressing machine and Mixing Machine respectively.

Feature

* With high standard(GMP standard,sanitary grade and food grade)

* Made of nontoxic and corrosion resistant materials

* Materials are not adhering to the inner surface of conveyor

* Intelligent control and high automation

* Modular structure,Easy to Clean and dismantle.

* Low noise and non-vibration

* More flexible to connect with packaging machine,mixers,crusher,mills,etc.

* Lower price compared with screw conveyors

* Good choice for powder,small pellet and fragile materials

* Low Energy Consumption

Our machines have an automatic 12 months guarantee against faulty material and workmanship valid from the date of dispatch in China or date of arrival at foreign border.

If any problem of the machine under instruction within one year,we are responsible for replacement incuding delivery fee and maintenance.

Lifelong service is offered with cost charge after one year.

Vacuum Conveyor

Vacuum Conveyor ,Vacuum Transfer System,Vacuum Transfer,Pneumatic Vacuum Conveyor

XINXIANG CHENWEI MACHINERY CO.,LTD , https://www.sieves.nl