Maxitrol BV250 User Manual
Manual Ball Valves
for gas and other applications
Model BV602: 3/8", 1/2", 3/4" NPT
Model BV250: 1/4", 3/8", 1/2", 3/4", 1",
1¼", 1½", 2", 2½", 3", 4" NPT
BULLETIN BV_MS_EN_10.2006
Replaced MS2042
Ball valves from Maxitrol for gas, water, oil, steam
and other applications have a strong body of forged
brass, female NPT inlet and outlet, hard chrome plated
ball, and anticorrosion Dacromet treated handle.
BV602 models contain seats of Buna N, and are of
one-piece construction. BV250 models contain seats
of PTFE (Teflon®), and are of two-piece construction.
Each of the two standard models is equipped with a
different lever style handle (see reverse).
A Self Locking Nut improves reliability between the
stem and lever by providing additional stability against
vibrations. In addition to the seal created by the ORing, a PTFE anti-thrust washer seals against the
shoulder of the valve.
The valves also feature innovative designs of the
ball and seat.
The hollow ball
design is based
on R&D lab work
and years of field
experience.
Manufacture of
the hollow ball
requires a technical
level not found in
most substitutes.
Heavier is not
necessarily better, in fact the
lighter ball decreases wear associated with on-off
turning action. Typically the greatest friction loss takes
place at the point of highest gravitational force. The
lighter hollow ball increases the life of the valve seats
from 10% to 20% more than with a solid ball.
The valves are manufactured with a unique new seat
shape to reduce friction during
opening and closing. Compared
with other seat shapes the
maneuver torque is reduced 20%
to 40%.
S-model valves have side
pressure taps (602S-44 shown).
Pressure Tap Connector Available
BV602 shown,
see reverse for model BV250
Certifications for BV602 models (one-piece body)
• (1/2" and 3/4") UL Listed 757X (water)
• (1/2" and 3/4") Complies with CSA requirement 3.88 for 2 psig
• CSA Certified in compliance with Z21.15
Certifications for BV250 models (two-piece body)
• CSA Certified Tamper Resistant construction
• CSA Verified for ambient temperature range from -40o to 300oF
• (2 1/2" and 3") CSA Certified in compliance with Z21.15
• (1/2", 3/4", 1", 1 1/4", 1 1/2", 2") CSA certified to requirement
3.88 for 2 and 5 psig
• (1/2", 3/4", 1") CSA Certified under Certificate 633-3A, following
Standard ANSI B.16.33-1981 for gas at 125 psi
• (1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2") NFPA 58-UL 250 psi
• (1/2", 3/4", 1", 1 1/4", 1 1/2", 2") UL 258 for 175 psi
• (1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2") UL Listed LP gas
shut-off valves - Standard YSTD under Listing 44R8 for 400 psig
• UL Listed:
Gas shut-off valves (UL Standard YRPV)
Compressed gas shut-off valves (UL Standard YQNZ)
Manual valves (UL Standard MHKZ)
for the following fluid service:
-natural and manufactured gas
-fuel oil No.1-6 (260
-air
-acetylene
-nitrogen
-carbon dioxide
-inert gases
• (1/2", 3/4", 1", 1 1/4", 1 1/2", 2") FM approved for sprinkler
systems (Approval No. J.I. ON7A5.AH)
• (3/8", 1/2", 3/4", 1") CSA approved
• (All sizes) Rating of 150 WSP
(1/4", 3/8", 1/2", 3/4", ) 600 WOG
(1", 1 1/4", 1 1/2", 2") 500 WOG
(2 1/2", 3", 4") 400 WOG
• Other international approvals include WRC in the U.K., VA in
Denmark, IAA in Korea, KFT in Hungary, SVGW in
Switzerland, and conformity to the new proposed European
standard prEN 331
o
F)
• S Model Side tap is 1/8" NPT
No. PF10 - Pressure tap connector installed as part of the
control. It is a hose fitting incorporating a captured sealing
means for testing inlet and outlet pressures. This eliminates
the need for a special barb fitting.
Capacity, Pressure Drop
Capacity
CFH (m3/h)
Model
BV250T-22 1/4"
BV250-33 3/8"
BV602-33 3/8"
BV250-44
BV602-44
** or S-44
BV250-66
BV602-66
** or S-66
BV250-88
** or 602S-88
BV250-1010 1 1/4"
BV250-1212 1 1/2"
BV250-1616 2"
BV250-2020 2 1/2"
BV250-2424 3"
BV250-2424 4"
Size
1/2"
1/2"
3/4"
3/4"
Cv factor is flow rate in GPM when DR is 1 psi, Cv = GPM / ÖDR
(GPM = gallons [US] per minute, DR = pressure drop [psi])
20
10
BV602 (3/8")
BV250 (1/4")
Pressure Drop (∆p)
1
BV602 (1/2")
mbar
In. w.c.
.3
CFH
330
m3/h
© 2006, Maxitrol Company, All Rights Reserved
0.64 sp. gr. gas
P
.3" w.c. 1" w.c.
1"
BV250 (3/8")
10
117
(3.31)
183.5
(5.20)
136
(3.85)
296.5
(8.40)
151
(4.28)
682.4
(19.32)
405
(11.47)
834
(23.62)
1278
(36.19)
2605
(73.77)
3562
(100.87)
7947
(225.04)
10296
(291.56)
BV250 (1/2")
BV602 (3/4")
(15.33)
1245.9
(35.28)
(20.95)
(43.13)
(66.09)
(134.68)
6503.7
(184.17)
14508.7
(410.85)
18797.5
(532.30)
BV250 (1-1/4")
BV250 (1")
BV250 (3/4")
214
(6.06)
335
(9.49)
249
(7.05)
541.3
275
(7.79)
740
1523
2334
4756
100
Flow Rate (0.64 sp. gr. gas)
BV250 (2")
BV250 (1-1/2")
BV250 (2-1/2")
BV250 (3")
1000
2000
Dimensions, Port Size, Cv Factor
Dimensions, Port Size
in inches (mm)
Model BV602
One-piece body
Model Size
BV602-33 3/8"
BV602-44
**or S-44
BV602-66
**or S-66
1/2"
3/8"
Port
0.4"
(10)
0.4"
(10)
0.6"
(15)
** S-models have side pressure taps (602S-44 shown)
Widths: 602S-44 = 1.57", 602S-66 = 1.78", 602S-88 = 2.09"
Dimensions, Port Size
in inches (mm)
Includes 602S-88
Model Size Port Cv A B C
BV250T-22* 1/4"
BV250-33 3/8"
BV250-44 1/2"
BV250-66 3/4"
BV250-88
** or 602S-88
BV250-1010 1-1/4"
BV250-1212
BV250-1616 2"
BV250-2020 2-1/2"
BV250-2424 3"
BV250-3232 4"
1-1/2"
1"
0.3"
(8)
0.4"
(10)
0.5"
(13)
0.7"
(18)
0.9"
(22)
1.1"
(28)
1.4"
(35)
1.8"
(45)
2.3"
(58)
2.7"
(68)
2.7"
(68)
*Model BV250T-22 equipped with T-handle
23555 Telegraph Rd., P.O. Box 2230
Southfield, MI 48037-2230 U.S.A.
248.356.1400 • Fax 248.356.0829
Cv B C B
5.95
6.26
14.1
2.02"
(51.3)
2.35"
(59.7)
2.59"
(65.8)
1.69"
(42.9)
1.69"
(42.9)
1.69"
(42.9)
Model BV250
Two-piece body
7.68
7.79
11.9
21.4
42.2
85.5
122.2
184
279.3
313.1
537
1.61"
(40.89)
1.77"
(44.96)
2.08"
(52.83)
2.35"
(59.69)
2.91"
(73.91)
3.28"
(83.31)
3.72"
(94.49)
4.28"
(108.71)
5.63"
(143.00)
6.30"
(160.02)
7.99"
(202.95)
0.99"
(25.15)
1.28"
(32.51)
1.42"
(36.07)
1.87"
(47.50)
2.02"
(51.31)
2.22"
(56.39)
2.78"
(70.61)
3.09"
(78.49)
3.98"
(101.09)
4.29"
(108.97)
4.13"
(104.90)
Maxitrol Company
www.maxitrol.com
1.41"
(35.8)
1.41"
(35.8)
1.41"
(35.8)
*
3.07"
(77.98)
3.07"
(77.98)
3.78"
(96.01)
3.78"
(96.01)
3.78"
(96.01)
5.43"
(137.92)
4.43"
(112.52)
6.97"
(177.04)
6.77"
(171.96)
8.00"
(203.20)
Loading...