Pneumatic flow control valve / jacket flow control valve

With its novel design, superb technology, and rigorous quality inspection, the product is unique in the manufacture of filtration equipment at home and abroad, and is widely used in petrochemical, fine chemical, chemical fiber, metallurgy, papermaking and special media filtration industries.

Category:

Melt valve

Telephone:

18815025787 15961606506(Mr. Huang)

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Product Description

Pneumatic flow control valves/jacketed flow control valves are pneumatic flow control valves developed specifically for chemical fiber and chemical fiber raw material production enterprises and polyester polymerization units. They regulate and control the flow, pressure, temperature, level, and discharge of polyester melt in process pipelines.

The valve core adopts an upward guiding structure. The compact valve structure and S-shaped streamlined channel minimize pressure drop, maximize flow rate, provide a wide adjustment range, and ensure high flow characteristic accuracy, conforming to the IEC534 standard.

Jacketed flow control valves are suitable for occasions requiring insulation. To ensure uniform valve body temperature during operation, a heating jacket is designed with a double-layer structure. The interlayer can be filled with steam or heat transfer oil to maintain or increase the fluid temperature, preventing fluid temperature reduction, increased viscosity, or fluid solidification.

Technical Parameters
Valve body material: 304, 316L, etc.	Jacket material: 304, 316L, etc.
Nominal pressure: 1.6-8MPa	Jacket medium pressure: <1.0MPa
Jacket medium temperature: <350°C	Packing: V-type PTFE packing, graphite packing
Internal Valve Components
Valve core type: Upward guiding single-seat plunger type valve core.	Flow characteristic: Equal percentage, linear
Actuator
Type: Spring-type diaphragm actuator	Spring range: 0.02~0.1, 0.08~0.24MPa
Supply air pressure: 0.14, 0.16, 0.28, 0.40MPa	Air source connector: Rc/4 and NPTI/4
Ambient temperature: -30°C~+70°C	Valve action type: Air-to-open or air-to-close
Performance
Leakage: Metal seat: Conforms to IEC534 Class IV, less than 0.01% of rated Cv Quick-opening valve core: Less than 10-7 of rated Cv
Hysteresis: Less than 1% of full stroke (with positioner) Less than 3~5% of full stroke (without positioner)
Linearity: Less than ±1% of full stroke (with positioner) Less than ±5% of full stroke (without positioner)
Adjustable range: 50:1

Cv value and stroke

Nominal bore		40			50			65			80			100			150			200
Valve seat diameter (mm)		25	32	40	32	40	50	40	50	65	65	80	100	65	80	100	100	125	150	125	150	200
Rated Cv value	High-capacity valve core			30			50			85			125			220			420			700
	High-precision valve core	10	17	24	17	24	44	24	44	68	44	68	99	68	99	175	175	275	360	275	360	640
	Quick-opening valve core			35			55						135			220			460			720
Rated stroke	Other valve cores	25						38									50			75
Rated stroke	Quick-opening valve core	10			13			19						25			30			50

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Pneumatic flow control valve / jacket flow control valve

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