In abnormally hot, dirty, or corrosive conditions, most
shutoff valves can deteriorate and fail to shut off tightly.
Frequent, periodic checking of all valves is recommended.
Threaded ball valves are designed for industrial, residential and
commercial use on steam, water, oil or gas. Their full ports allow
for maximum fl ow with minimum pressure drop and turbulence.
The valve is UL listed, FM approved, and the brass bodies are
CGA 3.16 certifi ed.
1821B ball valves can be ordered with the option to be cleaned
for oxygen service. A locking handle option is also available.
600
400
200
0
P
.S.I.
0 200 400
Temperature °F
Bulletin 1821B
Page 2
Product Overview | Shutoff Valves
Body Material
Pipe Size
Rating
Pipe Size
Rating
Pipe Size
Rating
Natural gas; CSA certifi ed Class 3371 90;
All 125
psi n/a n/a n/a n/a
ANSI/ASME
B16.33/B16.38
Natural gas; UL guide YRPV
¼
" - 2"
400 psi
All
2000 psi
All
2000 psi
#6 oil @ 250°F; UL guide MHKZ
¼
" - 2
400 psi
All
2000 psi
All
2000 psi
W.O.G. non-shock (water, oil, gas)
All
600 psi
All
2000 psi
All
2000 psi
W.S.P. (working steam pressure)
All
150 psi
All
150 psi
All
150 psi
FM approved Class 1140
All
n/a
n/a
n/a
n/a
n/a
TABLE 1: PRESSURE RATINGS
TABLE 2: MATERIALS
Material
Brass
Carbon Steel
Stainless Steel
Body
Forged Brass ASTM C37700
Carbon Steel WCB
316 SST
Seat
Tefl on
Hostafl on TFM 1600
Hostafl on TFM 1600
Ball
Forged Brass ASTM C37700
316 SST
316 SST
Stem
O-ring
Viton
Hostafl on TFN 1600
Hostafl on TFM 1600
Packing nut
Forged Brass ASTM C37700
304 SST
304 SST
Stem
Packing
Tefl on
RPTFE
RPTFE
Stem
Forged Brass ASTM C37700
316 SST
316 SST
Handle Nut
Chrome Plated Steel
304 SST
304 SST
Lock Washer
Chrome Plated Steel
304 SST
304 SST
Handle
Chrome Plated Steel
Steel A193-B7
SST A193-B8
Brass
SST
Carbon Steel
