The General Administration of the People's Republic of China organized a survey on the demand for safe production technology

All relevant units:

In order to accelerate the implementation of the “Science and Technology Development” strategy, implement the key tasks of the “Twelfth Five-Year Plan” of safety production technology, further enhance the support ability of safety technology to prevent and contain serious and large production safety accidents, and consolidate the safety production advanced, applicable technology and equipment research and development. Demand, after research, decided to carry out the "Twelfth Five-Year" safety production technology needs survey. The relevant matters are hereby notified as follows:

First, the survey content

During the “Twelfth Five-Year Plan” period, coal mines, non-coal mines, dangerous chemicals, fireworks and firecrackers, occupational safety and health, emergency rescue and other safe production key industries, advanced applicable technologies and equipment research and development needs.

Second, the scope of investigation

It is mainly for colleges and universities, research institutes, enterprises and institutions and industry associations engaged in safety production science and technology and equipment research and development activities. Do not accept surveys filled out by individuals.

Third, the job requirements

This survey adopts the online reporting method (website: http://), and all units are fully aware of the significance of the survey work, and fill out the questionnaire carefully and before May 31, 2012. Complete the report.

Contact person and telephone: Zhu Yankun, 010-84652438

Hou Xianjun, 010-64464109

annex:

"Twelfth Five-Year" Safety Production Technology Needs Questionnaire

Double Throttle Check Valve

Flow control valves, Model Z2FS, are double throttle/Check Valves. They restrict flow to or from actuator ports (A & B) of a directional valve. Two throttle/check valves, symmetrically arranged in the housing, restrict flow with adjustable throttles in one direction while providing free flow in the opposite direction.

Features:

l  Sizes 6 to 22

l  For mounting:
– Size 6: Porting pattern according to ISO 4401-3, NFPA T3.5.1M R1, 
and ANSI B93.7 D 03
– Size 10: Porting pattern according to ISO 4401-5, NFPA T3.5.1M R1, 
and ANSI B93.7 D 05
– Size 16: Porting pattern according to ISO 4401-7, NFPA T3.5.1M R1, 
and ANSI B93.7 D 07
– Size 22: Porting pattern according to ISO 4401-8, NFPA T3.5.1M R1, 
and ANSI B93.7 D 08

l  For limiting the main or pilot flow of one or two actuators

l  Meter-in or meter-out throttling

l  Adjustment type:
– Soft screw with locknut

Double Throttle Check Valve

Double Throttle Check Valve,Modular Check Valve,Hydraulic Double Throttle Check Valve,Double Throttle Valves

Jinan Longli Hydraulic Device Co.,Ltd , http://www.longlihydro.com