Sirsalliyan Small Air Compressor

Flow Control

Cement bulk electric equipment industry standard flow control valve

Name of cement in bulk standard equipment electric flow control valve

The People's Republic of China building materials industry standard standard type

  P> No. standard JC / T 609-1995 1 Subject Matter and Scope. Standard text This standard specifies the use of cement in bulk electrical flow control valve product classifications, technical requirements, test methods, inspection rules, marks, packaging, transportation and storage.

Wood is applicable to cement bulk electric flow control valve (hereinafter referred to as flow control valve).

2 Normative references GB / T 1804 General tolerances for linear dimensions at the end tolerances

GB 9439 Gray Iron Castings GB / T 13306 signs JC 401.2 Building Materials Carbon and low alloy steel castings

JC 401.3 Building Materials Steel Casting Defects with the provisions of

JC 401.4 building materials machinery steel castings delivery conditions

JC / T 402 anti-rust coating of cement machinery and technological conditions

JC / T 406 cement machinery packaging conditions

JC 532 Building Material Machinery steel welded General technical requirements

ZB Q92 002 Air transportation chute in cement industry

3 Products 3.1 structure type

Flow control valve from the cylinder-shaped flow valve and electric actuator component.

3.2 Model Models showing methods of life are as follows:

FL D nominal diameter inlet width, mm

electric code flow control valve code

3.3 tags example Cavity inlet width of 300mm nominal electric flow control valve: electric flow control valve FLD 300 JC / T 609

3.4 Basic parameters Most basic table below: Parameter name parameter value unit model cavity inlet

FLD250 FLD300 FLD400 FLD500 FLD630 Nominal width mm 250 300 400 500 630

Maximum flow 1) m [3] / h 150 180 280 345 540

Material flow valve Through an area of m [2] 0.014 0.017 0.026 0.032 0.051

Electric maximum angle (°) 90 Implementation of the output signal mA 4 ~ 20

Agencies operating time s 25 Note: 1) maximum flow to material flow 3m / s calculations.

4 technical requirements 4.1 Basic requirements 4.1.1 Product shall comply with the standards and procedures in accordance with the provisions approved by the product plan and technical papers paradox manufacture, installation and use. Where the standard drawings and technical documents at the end technical requirements, should comply with national standards, and building materials industry and the general mechanical and electrical industry standards.

4.1.2 machining end position of linear dimension tolerances according to GB / T 1804 in the m-class.

4.1.3 welded shall comply with the provisions of JC532, in which the surface quality of welded joints of not less than grade ; Size allowable deviation of not less than c-class.

4.1.4 Iron castings shall comply with the provisions of GB 9439.

4.1.5 Castings shall meet the requirements JC 401.2-401.4.

4.2 Conditions of Use 4.2.1 Flow Control Valve Tube with the inlet valve should be set.

4.2.2 cement flow control valve to send water content should be less than 1%, the temperature does not exceed 120 , no residue and mixed clumps.

4.2.3 should be installed on slopes of 6% to 14% range.

4.2.4 flow control valve requires pressure 4.0-5.KPa, required air volume 1.5-2.0m [3] / m [2]. Min.

4.3 Performance 4.3.1 flow parameters should be consistent with the provisions of table 3.4.

4.3.2 flow control valves should be accurate and reliable control of material flow.

4.3.3 flow control valve work, the flanges are not allowed junction leakage.

4.4 assembly required 4.4.1 All parts must be tested before they can be assembled, purchased parts, and coordination, must be tested according to relevant standards and be assembled with the product quality certificate.

4.4.2 breathable layer assembly shall comply with ZB Q92 002 of the requirements.

4.4.3 Flange shell should not leak tight.

4.4.4 electric actuators should enable the flow control valve fully closed to fully open.

4.5 rust paint requirements Rust paint products should be consistent with JC / T 402 requirements.

4.6 Appearance quality requirements Products, the surface may not significantly raised, depression, and rough, and other injuries.

4.7 installation requirements Flow control valve and the adjacent parts of the junction should be tight without leakage.

4.8 air intercept test run requirements

4.8.1 flow control valve is to be flexible, no abnormal sound.

4.8.2 All joints should be no leakage phenomenon.

4.8.3 Electric Actuators action should be accurate and reliable to meet the maximum opening and operating time requirements.

4.9 load test run requirements

4.9.1 load test run should meet the performance requirements of 4.3 are not affected by flow control valve delivery of related equipment to achieve the desired capacity.

4.9.2 opening flow control valve actuator shall correspond to the output signal.

5 test methods 5.1 No-load test run 5.1.1 test run conditions: flow control valve assembly qualified.

5.1.2 Test Methods A. flow control valve opening and closing not less than 10 times;

B. Test pressure 8kpa, packing 5min, check for leakage phenomenon;

C. actuator cylinder valve opening leisurely drive to the maximum to zero.

5.2 load test run 5.2.1 test run conditions

A. No-load test run pass; B. System for the material.

5.2.2 flow control valve commissioning inspection, with the bulk cement loading machines do not
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