22
2 L12 71 en
11
TYPE CODE
NELDISC® HIGH PERFORMANCE TRIPLE ECCENTRIC DISC VALVE,
series L12
1.
2.
3.
4.
5.
6.
7.
8.
L12
A
150
A
A
-
/
K
1.
PRODUCT SERIES
L12
Wafer type, full bore, metal-seated
Face-to-face lenght acc. to API 609
2.
PRESSURE RATINGS
A
Body rating
DN 80–125: PN 50 / ASME 300
DN 150–600: PN 25 / ASME 150
Maximum shut-off pressure
DN 80–125
Ps = 25 bar (ASME 150), welded clamp ring
DN 150
Ps = 25 bar, welded clamp ring
DN 200
Ps = 20 bar, welded clamp ring
DN 250–600
Ps = 10 bar, welded clamp ring
B
Body rating
PN 25 / ASME 150
Maximum shut-off pressure
DN 700–1000
Ps = 10 bar, bolted clamp ring
DN 1200,1400
Ps = 6 bar, bolted clamp ring
3.
DIAMETER NOMINAL
080, 100, 125, 150, 200, 250, 300, 350, 400, 500, 600, 700, 800, 900, 1000, 1200, 1400
4.
BODY, DISC AND SHAFT MATERIAL
A
Body and disc: stainless steel ASTM A351 gr. CF8M
shaft: SIS 2324, DN 80–1400
H
Body and disc: stainless steel ASTM A351 gr. CF8M
shaft: 17-4PH + hard facing, only DN 700–1400
5.
SEAT MATERIAL
A
Stainless steel ASTM B 424 (Incoloy 825) hard chrome plated only for DN 80–600
B
W.No 1.4418 + hard chrome plated available only for DN 700–1400
6.
GLAND PACKING
-
PTFE, standard, without sign (Available only for sizes DN 80–600)
(for sizes DN 700–1400 the sign is always "T")
T
Live loaded PTFE packing with disc springs sets, TA-Luft tested and certified by TÜV.
Sizes DN 80–1400
G
Live loaded graphite packing with disc springs sets, TA-Luft tested and certified by TÜV.
Sizes DN 80–1400
7.
FLANGE FACING
-
EN1092-1Type B1, (Ra 3,2–12.5)
Covering:
ASME B16.5, (Ra 3.2–6.3)
old DIN 2526 Form E (Ra 4)
8.
FLANGE DRILLING (DN 500 - 1400)
C
ASME B 16.5 Class 150 sizes DN 500–600
ASME B 16.47 Series A Class 150 size 26" and bigger.
J
PN 10
K
PN 16
L
PN 25
R
JIS 10K
S
JIS 16K
Summary of Contents for L12 Series
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