Pneumatic Lined Single Seat Control Valve

Name: Pneumatic Lined Single Seat Control Valve
Brand: FVF
SKU: 01075
Rating: 4.8 (365 reviews)

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FVF Pneumatic Lined Single Seat Control Valve

FVF pneumatic/electric lined control valve is the execution unit in automation instrument system.It consists of many spring film actuators/electric actuators and through-way fluorine-lined single-seat regulator. It is installed on the medium pipeline and operated with other instrument to control parameters such as flow rate etc.
Due to the wetted parts of valve are lined with fluorine plastic (PTFE, PFA, FEP),it has better performance in corrosion resistance and sealing and its installation has better reliability.
It’s suitable for any corrosive medium except for molten alkali metals and fluorine element. The lined control valves are widely used in petrochemical, electric power, metallurgy, pulp & paper and other industrial automation device.

Materials of Main Parts

No.	Part Name	Material List
1	Body/Bonnet	WCB	CF8	CF8M	CF3	CF3M
2	Disc/Stem	1Cr13	1Cr18Ni9	00Cr17Ni4Mo2	1Cr18Ni9	00Cr17Ni4Mo2
3	Lining/Seat	FEP PTFE PFA PO
4	Packing	PTFE
5	Packing Gland	WCB	CF8	CF8M	CF3	CF3M

Technical Specification

Seat diameter (mm)	20	25	25	32	32	40	40	50	50	65	65	80	80	100	100	110	125	150	175
Rated Cv	5	10	10	16	16	24	24	44	44	68	68	125	125	165	165	195	330	360	460
Rated travel	16mm				25mm				38mm						50mm			60mm
Actual pressure	Maxmum 1.0 MPa (1.6 MPa customised)
Nominal pressure	I.0MPa, 1.6MPa
Working temperature	-29°C-180°C
Trim	Single seat plunger valve core
Flow characteristic	Linear, equal percentage
Adjustable range	50:1
Equipped with ZJHA/B Multi-springs Diaphragm Pneumatic Actuators
Model	ZJHA/B-22				ZJHA/B-23				ZJHA/B-34						ZJHA/B-45
Action mode	ZJHA type actuator refer to "air-to-close" action： ZJHB actuator refer to "air-to-open" action
Pressure supply	According to the scope of spring: 0.02-0.10, 0.04-0.20, 0.08-0.24 Mpa. Respectly are 0.14, 0.25, 0.35 MPa
Air supply connection	Rc1/4
Basic error	Without positioner:±5%; With posilioner:±1%;
Backlash	Without positioner: 3%; With positioner: 1%;
Dead zone	Without positioner: 3%; With positioner: 0.4%;
End point deviation	Without positioner: opening point±2.5%, terminal point±5%;closing point±5%, terminal point±2.5%. With positioner error from beginning to end is ±1%;
Travel deviation	±2.5%
Leakage rate	No more than 10 of rated CV
Optional accessories	positioner, air set, solenoid valve, limit switch etc. (according to the order)

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