Hollysys A104-Dl Low Leakage Bellows Seal Cage Type Control Valve

• Customization: Available
• Temperature: Ordinary Temperature
• Media: Gas, Oil, Water
• Model NO.: A104-DL Low Leakage Bellows Seal Cage Type Control
• Standard: Standard
• Connection Mode: Flange
• Power: Pneumatic, Electric
• Material: Wcb, Ss 304, SS316, SS304L, SS316L
• Type: Globe Control Valve
• Application: Industry
• Size and Pressure Grade: DN40 to DN300 (1-1/2" to 12"), Pn16 to Pn63
• Nominal Pressure: Pn16 to Pn63
• Transport Package: Wooden Box
• Trademark: HollySys
• Origin: China
• HS Code: 8481804090
• Production Capacity: 12, 000+ PCS/Year

Product Description

Application
·  Complying with GB, ANSI and other standards
·  Control valves for process industry and equipment requiring high control accuracy and small leakage, and the applications of high pressure difference and flashing cavitation
· It is widely adopted in the automatic control system of highly toxic, highly corrosive, radioactive and rare precious media in the industries of chemical, petroleum, metallurgy, medicine, electric power, etc.

Features
·  Multi-spring pneumatic diaphragm actuator available for selection, simple and firm structure, large output force and long service life
·  Various valve body materials for selection, such as cast steel, cast stainless steel, low-temperature and high-alloy steel or special materials
·  Suitable for various fluids with different pressures and temperatures. S-shaped streamlined channel of valve body, enabling small pressure drop loss, wide adjustable range, high accuracy of flow characteristics, large guide area of valve trim and good vibration resistance
·  Optional bellows seal structure adopted for the upper bonnet, eliminating the possibility of medium leakage from the valve stem movement clearance
·  For sleeve type, pressure balance structure of valve trim, using small actuator thrust to control the high pressure difference, and a sealing ring between the valve trim and the sleeve to reduce leakage
·  For fluorine lined type, tetrafluoroethylene-hexafluoropropylene copolymer (F46), a corrosion-resistant and aging-resistant material, lining at the valve body inner cavity, valve trim, valve stem and other parts in contact with the medium, double seal with PTFE bellows and packing to ensure no leakage

Technical Specifications

Product model	A104-DL1		Bonnet type		Room temperature		Operating temperature°C	-17 to +230
					Low temperature			-45 to -17
					High temperature			+230 to +350
Nominal	DIN		40 to 300
Diameter	NPS		1-1/2" to 12"
Nominal pressure			PN16 to PN63
Pressure grade ASME			CL150, CL300
Connection type	Flange type		FF, RF, RJ, FM concave etc.
	Welded type		SW, BW
Characteristics			Linear/equal percentage/quick opening
CV value	High capacity	Equal percentage	36	60	100	140	220	420	820
		Linear	40	75	110	150	240	435	850
	High accuracy		11	17	24	44	68	99	175
			275	360	395	640	650	1000	1440
Packing			PTFE V-shaped packing, filled PTFE V-shaped packing, flexible graphite packing
Leakage quantity			The metal valve seat conforms to Class IV of ANSI/FCI70-2orClassIVofGB/T4213-2008. If you need valve seats that conform to Class V and Class VI,please contact us for customization; soft valve seat≤rated Cv value×10-7. The quick-opening valve element conforms to Class  V and VI of ANSI/FCI70-2orGB/T4213-2008

 

Packaging & Delivery

Category	International Commercial Terms (Incoterms)	Terms of Payment	Nearest Port
A 104-DL Low Leakage Bellows Seal Cage Type Control Valve	CIF, CFR, DAP	LC, T/T, D/P	Shanghai, Guangzhou, Tianjin

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