Seepex BN 5-12 Series Operation & Maintenance Manual page 290

I
nstallation and Maintenance Instructions for
B400 & B700 ASHCROFT
Switches for Pressure Control
B400
B
Ø 0.28
(3 Holes)
A D
G
F
E
A B C D
5 11 ⁄ 4 3 1 ⁄ 3 5 ⁄
IN.
16 4 16
MM (144) (102) (83) (84)
STANDARD RANGES
10, 30, 60, 100, 150 ˝H O
2
15˝H O vac.-15˝H O
2 2
B700
B
0.28 THRU
(3 PLACES)
A
1/4 NPT
C
FEMALE
(DP ONLY)
J
I
A B C D
7 13 3 29
IN. 6 ⁄ 5 ⁄ 4 ⁄ 3
16 64 8
(164) (132) (111) (99)
MM
INTRODUCTION
The Ashcroft pressure switch is a precision built U.L. and F.M. ap-
proved control device which features a mechanical snap action
switch. Controllers are available for operation on pressure or
vacuum with fixed or variable differential. Also manual reset
types for operation on increasing or decreasing pressure. The
manual reset types remain tripped until reset by pressing a but-
ton on top of the enclosure. Standard electrical switch is SPDT,
Instrument Division, Dresser Equipment Group, Inc., 210 Old Gate Lane, Milford, CT 06460, 203-878-5641, 203-877-8519 Fax, www.ashcroft.com
© Instrument Division, Dresser Equipment Group, Inc. All sales subject to standard terms and conditions of sale.
® Snap Action
H
3/4 NPT
C
Bracket When
Ø 0.34
Required "XBP"
1/4 NPT
(2 Holes)
Female
K
E F G H I
5 1 ⁄ 2 23 ⁄ 5 7 ⁄ 2 7 ⁄ 2 3
8 32 16 8
(130) (44) (138) (73) (70)
E
D
1/4 NPT
FEMALE
3.6 lb
G
(1.6 kg)
E F G H
31 7 5 29
⁄ 3 ⁄ 1 ⁄ 5 ⁄ 3 ⁄ 5
32 32 32 8 32
(96) (31) (59) (8) (130)
D
A (X06)
J
Variation
I
A
⁄ 5
4 IN.
2.7 lb
(127) (102)
MM
(1.2 kg)
STANDARD RANGES
15, 30, 60, 100, 200, 400, 600 psi
1000, 3000 psi
30˝Hg vac.-0
F
H
A
3/4 NPT
(2 PLACES)
1/4 NPT
FEMALE
BRACKET WHEN
REQUIRED "XBP"
VARIATION
A B
I J
47 13
5 25 5 ⁄ 5 ⁄
⁄ 2 ⁄
IN.
64 16
8 32
(146) (132) (111)
(71)
MM
available with various electrical characteristics. Two SPDT switch
elements mounted together are available except on variable
Deadband and manual reset types. Various wetted material con-
structions for compatibility with a range of pressure media may
be obtained.
The Ashcroft snap action pressure switch is furnished in the
standard NEMA 4 and explosion-proof NEMA 7 & 9 enclosure
styles. Both enclosures are epoxy coated aluminum castings.
I&M009-10008-10/00 (250-2246E)
Page 192
B
Ø 0.28
(3 Holes)
E
3/4 NPT
X06 Variation
1/2 NPT Male &
1/4 NPT Female
C
B C D E F
4 3 1 ⁄ 3 5 ⁄ 2 3 ⁄ 2 5 ⁄
4 16 4 16
(83) (84) (70) (59)
E
B
0.28 THRU
(3 PLACES)
D
3/4 NPT
(2 PLACES)
I
C
2.7 lb
(1.2 kg)
C D E F G
3 7 31 7 5
4 ⁄ 3 ⁄ 3 ⁄ 1 ⁄ 2 ⁄
8 8 32 32 16
(99) (100) (31) (59)
I
G
A
H
1/4 NPT
Female
F
G
1 3 ⁄
16
1.8 lb
(30)
(.81 kg)
F
H
G
H I
5 5
⁄ 1 ⁄
16 16
(8) (49)
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