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Fluorine Lined Control Valve

Nominal pressure	PN0.6~1.6MPa
Nominal diameter	DN25~200(mm)NPS 1"~8"
Spool type	Single Seated Plunger Spool Valve
Basic Models	ZHA/B ZAZA/B

serial number

Part Name

carbon steel

stainless steels

Ultra-low carbon stainless steel

C

P

R

PL

RL

1

Valve body, valve cover

WCB

CF8

CF8M

CF3

CF3M

2

Spool, stem

1Cr13

1Cr18Ni9

00Cr17Ni4Mo2

1Cr18Ni9

00Cr17Ni4Mo2

3

Lining/seat

FEP(F₄₆),PTFE(F₄),PFA(Soluble polytetrafluoroethylene),PO(polyolefin)

4

packing material

PTFE(F₄)

5

Packing Gland

WCB

CF8

Nominal diameter	DN25	DN32	DN40	DN50	DN65	DN80	DN100	DN125	DN150	DN200
Cv(be) worth	10	16	24	44	68	125	165	195	320	450
Seat diameter	25	32	40	50	65	80	100	110	120	170
Rated Stroke	16	16	25	25	38	38	38	50	50	60
Nominal pressure	1.0MPa、1.6MPa
operating temperature	-29°C-180℃
flow curve	Straight line, equal percentage
structural form	Single Seated Plunger Spool Valve
model number	ZHA/B-22		ZHA/B-23		ZHA/B-34	ZHA/B-45
fundamental error	With positioner ±1%;Without positioner ±5%
return differential (e.g. of farmland)	With positioner ±1%;Without positioner ±3%
deadband	With positioner ± 0.5%; without positioner ± 5%
Travel deviation	With positioner ±1%; without positioner ±2% for start point, ±2% for end point
constant-point deviation	With positioner ± 0.5%; without positioner ± 1%
spill	Not greater than CV x 10^-6