FISHER保衛(wèi)閥164/164A系列產(chǎn)品參數(shù)
Available Configurations | |
Type 164: | Two-way switching valve |
Type 164A: | Three-way switching valve |
Maximum Valve Body Pressure | 250 psig (17,2 bar) |
Set Pressure Ranges | See table 1 |
Maximum Diaphragm Pressure | 100 psig (6,90 bar) |
Operative Temperature Limits* | –20 to 150°F (–29 to 66°C) |
Flow Coefficients (Cg) | |
Depends on construction and flow path (see figure 2) as follows: | |
Type 164: | 26.6 (Port A to Port C) |
Type 164A: | 15.0 (Port A to Port B) or 26.6 (Port A to Port C) |
Connections | |
Type 164: | Ports A and C—1/4-inch NPT or 1/2-inch NPT; Vent and control pressure connection (Port D)—1/4-inch NPT |
Type 164A: | Ports A, B, and C—1/4-inch NPT or 1/2-inch NPT; Vent and control pressure connection (Port D)—1/4-inch NPT |
FISHER保衛(wèi)閥164/164A系列產(chǎn)品介紹
Introduction
The Types 164 and 164A switching valves are pneumatically operated and controlled units, built with a wide range of capabilities to handle those switching application that involve venting, on-off control, and failure modes.
Operation of either valve occurs when the pneumatic signal changes as indicated in table 1. With its two ports, the Type 164 switching valve is typically used as a normally open on-off switch, while the Type 164A switching valve directs flow through three ports. Additionally, the Type 164A provides on-off capability when one of its three port is plugged.
The Type 164 and 164A switching valves share the same basic construction (see figures 1 and 2), except that where the Type 164A switching valve has a part containing port B, the Type 164 switching valve has a plug.
Features
? Versatile—Constructions throughout the product line provide three-way or on-off pneumatic switching to suit a variety of applications.
? Easy, Accurate Adjustment—With a choice of springs for optimum resolution, the switching point is set to a specific requirement by an adjusting screw atop the spring case.
? Rugged, Compact Construction—The unit is small enough for easy installation in limited space, yet rugged enough to be mounted on the actuator.
164和164A型切換閥是氣動(dòng)控制單元，具有多種功能，可以處理涉及排氣，開/關(guān)控制和故障模式的切換應(yīng)用。
如表1所示，當(dāng)氣動(dòng)信號(hào)發(fā)生變化時(shí)，任一閥都會(huì)發(fā)生操作。164型切換閥具有兩個(gè)端口，通常用作常開開關(guān)，而164A型切換閥則通過(guò)三個(gè)端口引導(dǎo)流量。此外，插入三個(gè)端口之一時(shí)，164A型可以提供開關(guān)功能。
164型和164A型切換閥具有相同的基本結(jié)構(gòu)（見圖1和2），不同之處在于164A型切換閥的一部分包含端口B，而164型切換閥具有一個(gè)塞子。
特征
?多功能性—整個(gè)產(chǎn)品線的結(jié)構(gòu)均提供三向或開關(guān)式氣動(dòng)開關(guān)，以適應(yīng)各種應(yīng)用。
?簡(jiǎn)單，準(zhǔn)確的調(diào)節(jié)-通過(guò)選擇彈簧以獲得最佳分辨率，可通過(guò)彈簧盒頂部的調(diào)節(jié)螺釘將開關(guān)點(diǎn)設(shè)置為特定要求。
?堅(jiān)固，緊湊的結(jié)構(gòu)-該單元足夠小，可以在有限的空間內(nèi)輕松安裝，但堅(jiān)固到足以安裝在執(zhí)行器上。
FISHER保衛(wèi)閥164A系列其他常見型號(hào)：
FISHER 164
FISHER 164A
FISHER 164A/17-F
FISHER valve NEW + ORIGINAL+ ONE YEAR WARRANTY
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FISHER保衛(wèi)閥164A系列164A/17-F產(chǎn)品參數(shù)
