Dwyer 195系列两级顶置位移式液位控制

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Dwyer 195系列两级顶置位移式液位控制

我们最通用的液位控制装置之一,系列190可用于所有类型的油箱或水池液位控制应用程序。
Mercoid 浮筒控件使用浮筒不浮在液体表面但悬浮在线圈弹簧上的驱替器。它们的工作原理是液体中淹没固体的重量较小,而随着液体水平的上升和重量的降低,悬浮在水中的弹簧的张力也随之降低。由于它们的工作原理与浮式液位控制不同,驱替器不受湍流或压力的影响,对于粘稠或肮脏液体的应用是很好的。

固定或可调死区,供泵或警报器用

介质:兼容液体

接液材质:电缆,弹簧和停止:316 SS。可选Inconel®弹簧;替代物:瓷器。可选304 SS,316 SS,或碳石墨。

温度范围:环境: 32 to 200°F (0 to 93°C);过程: 32 to 200°F (0 to 93°C).

压力限制:125 psig (8.6 bar).高耐压可选.

封装:一般用途,防水,防爆或防爆/防蒸汽

开关类型:SPDT, 密封开关,或水银开关。可选的DPDT或两个阶段

电气额定:Snap switch: 12 A @ 120 VAC, 5 A @ 240 VAC, 0.5 A @ 125 VDC resistive, 0.25 A @ 250 VDC resistive; Hermetically sealed snap switch: 5 A @ 120 VAC, 5 A @ 240 VAC, 5 A @ 30 VDC resistive; Mercury switch: 4 A @ 120 VAC/DC, 2 A @ 240 VAC/DC. Higher contact ratings available for the mercury switch.

电气连接:螺丝端子

电气出口:3/4"NPT内螺纹.

过程连接:NPT或者法兰

安装方向:垂直

设定调节:通过移动位移器调节,可以看到最小值和最大值的尺寸图

介质比重:标准1.0. 通过用所需的比重设置替换型号中的1.0来指定订购时间。可设定范围为0.5至1.2

绳长:最长50ft.

重量:通用或水密外壳,4"125#铸铁法兰约28磅(12.7公斤);防爆或防爆/防蒸汽约32磅(14.5公斤)

认证:UL, 不包含HM型.

*Inconel®是Huntington合金公司的注册商标



选型表

EXAMPLE1954G4810-10PA1.00INCSeries 195-4-G-4810-10-P-A-1.0-0-INC Level Control, SPDT, porcelain displacers, 10 ft. cable, 1.0 specific gravity, 3/4" screw connection, with Inconel spring.
SERIES195
A195








Two Stage Top Mount Displacer Control, 2-1/2” diameter displacers
Two Stage Top Mount Displacer Control, 2” diameter displacers
CONSTRUCTION
4
6
7
8







Stage Operation 4
Stage Operation 6
Stage Operation 7
Stage Operation 8
ENCLOSURES

G
WT
E
EV






General Purpose
Watertight
Explosion-proof
Explosion-proof & Vapor-proof
CIRCUITS
(Three Stage)



48XX-XX
78XX-XX
78XXHM-XX
98XX-XX





See Chart A below
See Chart B below
See Chart B below
See Chart B below
DISPLACERS



P
S
S304
K
I




Porcelain (not suitable for non-vented steam systems)
316SS
304SS
Karbate
Intrf 3-1/2" dia. x 10"
CABLE LENGTH




A
B
C
D
E
F
G



10 ft.
15 ft.
20 ft.
25 ft.
30 ft.
40 ft.
50 ft.
SPECIFIC GRAVITY





1.0

Customer specified.
FLANGE






00
0
6
7
8
9
10
11
12
13
14
15
6S
7S
8S
9S
10S
11S
12S
13S
14S
15S

3" NPT connection
3/4" Screw connection
3" 150# RF carbon steel
4" 150# RF carbon steel
5" 150# RF carbon steel
6" 150# RF carbon steel
8" 150# RF carbon steel
3" 300# RF carbon steel
4" 300# RF carbon steel
5" 300# RF carbon steel
6" 300# RF carbon steel
8" 300# RF carbon steel
3" 150# RF 316SS
4" 150# RF 316SS  
5" 150# RF 316SS  
6" 150# RF 316SS  
8" 150# RF 316SS  
3" 300# RF 316SS
4" 300# RF 316SS  
5" 300# RF 316SS  
6" 300# RF 316SS  
8" 300# RF 316SS  
OPTIONS







INC
R1
STW
01
02
12
23720
Inconel Spring
Manual Reset Lower Stage
SS Tag Wired
Breather Only (E-Housing only)
Drain Only (E-Housing only)
Breather and Drain (E-Housing only)
Fungus Proofing

表A & B - 电路和额定 

SWITCH TYPE
SWITCH ACTION
ELECTRICAL RATINGS IN AMPS
ORDERING CODE
AC
DC
120V
240V
440V
30V
125V
250V
LOWER
UPPER
CHART A
Mercury
Contacts
SPST Open on Level Fall
10
5
3†

10
5
4821
-21
SPST Open on Level Rise
10
5
3†

10
5
4820
-20
SPDT One switch
4
2
1†

4
5
4810
-10
SPDT Two switches E.I.*
10
5
3†

10
5
4815
-15
DPST Two switches E.I.* Open on Level Fall
10
5
3†

10
5
4813
-13
DPST Two switches E.I.* Open on Level Rise
10
5
3†

10
5
4814
-14
DPDT Two SPDT switches
4
2
1†

4
2
4806
-06
CHART B 
Snap Action
Contacts
SPDT One switch
12
5
3†

0.5†
0.25†
7810
-10
DPDT Two SPDT switches
12
5
3†

0.5†
0.25†
7806
-06
SPDT One hermetically sealed switch
5
5

5†


7810HM
-10HM
DPDT Two hermetically sealed SPDT switches
5
5

5†


7806HM
-06HM
DPDT Two SPDT switches
10
3


10‡
3‡
9806
-06
SPDT One switch
10
3


10‡
3‡
9810
-10


*Electrically Independent; †Resistive; ‡10 amp inductive (polarized) at 125 VDC.


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