Control systems Control valves
4
Spira-trol TM selection guide: Valve size
DN25
EN standard = DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80 and DN100
K = K series 2-port control valve L = L series 2-port control valve
Valve series
K
E = Equal percentage
Valve characteristic
E
F = Fast opening L = Linear
Flange type
Blank
Blank = EN (PN) Blank = under
Flow
Blank
T = over
3 = Cast iron
4 = Carbon steel 6 = Stainless steel 7 = SG iron
Body material
4
1 = Screwed 3 = Flanged
Connections
3
D = Bellows/graphite secondary seals
H = Graphite N = PTFE with Nitronic bush - DN15 to DN50 only P = PTFE V = PTFE for vacuum service
4.1 39
Stem sealing
P
C = Steam-Tight Reversible PEEK seat
G = PTFE soft seat P = Full PEEK
Seating
T
S = 316L stainless steel T = 431 stainless steel W = 316L with stellite TM 6 facing A1 = 1 stage anti-cavitation A2 = 2 stage anti-cavitation P1 = 1 stage low noise cage P2 = 2 stage low noise cage P3 = 3 stage low noise cage S = Standard trim
Type of trim
S
B = Balanced (not available with seating option C)
Trim balancing
U
U = Unbalanced
E = Extended (Only available for K Series)
Bonnet type
S
S = Standard
H = High temperature
Bolting
S
S = Standard
Series
.2
2 = .2
Kvs
Kv 16
To be specified To be specified
Connection type
Flanged PN40
Selection example: DN32 - K
E 4 3 P T S U S S
.2 -
Kv 16 -
Flanged PN40
How to order Example: 1 off Spirax Sarco Spira-trol TM DN32 KE43PTSUSS.2 Kv 16 two-port control valve having flanged PN40 connections.
TI-S24-71 CTLS Issue 20
Page 23 of 23
Spira-trol TM Two-port Control Valves EN Standard K&L Series DN15 to DN100 (½" to 4")
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