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DDB和DDD系列 風(fēng)門執(zhí)行機構(gòu)是不帶彈簧回位的執(zhí)行機構(gòu)用于暖通空調(diào)系統(tǒng)中風(fēng)門或閥門的控制。DDB系列執(zhí)行機構(gòu)可接受浮動控制信號，可選不同的電源。DDD系列執(zhí)行機構(gòu)可接受4到20 mA或0到10 VD連續(xù)控制，24VAC供電，它們的扭矩為88到265 in-lb (10 - 30 Nm) 。如果DDB上需要附帶輔助開關(guān)，請咨詢工廠。

The Series IP Current to Pressure Transducer converts a current input signal to a linearly proportional pneumatic output pressure. The features include built-in volume booster, low air consumption, field reversible (provides output which is inversely proportional to the input signal) and flexible zero and span adjustments. The rugged NEMA 4X enclosure allows splashdown and outdoor installation. The IP can be used for applications that require operation of valve actuators, pneumatic valve positioners, damper and louver actuators, final control elements, relays, air cylinders, web tensioners, clutches and brakes.

The Series 2900 Current to Pressure Transducer delivers reliable high performance for the toughest applications in the most hazardous environments. Its NEMA 4X housing is designed and FM and CSA approved for both intrinsically safe and explosion-proof operation. This unit has advanced circuitry which includes electronic feedback control for superior vibration protection and highly accurate output. The 2900 is not position sensitive and the easily accessible zero and span adjustment make field calibration quick and easy. For ease of installation, this model has input and output ports on both the front and back. It is also not vibration sensitive, which makes the 2900 ideal for field mounting on a valve. These features coupled with the unit's compact size help make set-up and installation simple.

The Series 2700 Current to Pressure Transducer combines economical startup cost, low air consumption, and reliable performance to make the 2700 a great investment. The unit converts a variable current signal to a proportional pneumatic output. It has input and output ports on both the front and back which allows for versatile plumbing. The NEMA 4X enclosure enables the unit to be installed indoors or outdoors, however, the unit is not vibration resistant. It is FM and CSA approved for intrinsically safe operation. The 2700 is designed for remote or panel mounting. An integral volume booster provides high flow capacity, increasing control speed in critical applications. Other features include external zero and span adjustments which are convenient for field calibration.The Series 2800 Current to Pressure Transducer utilizes closed loop pressure feedback system that closely controls output and compensates for vibration, mounting angle, temperature, and supply pressure variations. These characteristics make this unit ideal for field mounting on a valve. The control mechanism is a piezoceramic actuator encapsulated in a protective skin, which provides a constant defense against humidity and con***inants. These features make this unit ideal for use in demanding applications. The 2800 also comes in a NEMA 4X enclosure and is field reversible. It is FM and CSA approved intrinsically safe, as well. For ease of installation, this model has input and output ports on both the front and back and can be easily panel mounted.

EP1000系列 電/氣控制裝置將調(diào)節(jié)器和電氣轉(zhuǎn)換器組合在一個NEMA 4X防護(hù)的外殼內(nèi)，成為一個高質(zhì)量的儀表控制裝置。只需供電和提供氣源就能和輸入的熱電偶，熱電阻，電壓信號，電流信號一起組成一個氣動過程調(diào)節(jié)系統(tǒng)。調(diào)節(jié)器采用了多功能微處理器，具備多種功能。在菜單編程操作時，只是和被選擇功能相關(guān)的菜單才會被顯示，簡潔明了。它還帶有自適應(yīng)控制，模糊邏輯控制，全可調(diào)PID控制和手自動切換。如果和我們的Hi-Flow?氣動薄膜調(diào)節(jié)閥配合使用，將會性能優(yōu)異地用于食品和飲料行業(yè)，紙漿和造紙行業(yè)和化工，制藥等行業(yè)。

實心電流開關(guān)CSS 型電流開關(guān)是新型設(shè)備的理想選擇，可大幅度降低成本。該款固態(tài)開關(guān)非常適合直接驅(qū)動裝置、小型排氣扇和其他固定荷載，這些開關(guān)具有精確的低固定設(shè)定點或可調(diào)節(jié)設(shè)定點，當(dāng)達(dá)到設(shè)定的電流時開關(guān)將啟動?？烧{(diào)節(jié)的 CSSGA2100NN 和CSSGA2100R1 型開關(guān)配有 LED 顯示，用于指示開關(guān)狀態(tài)。（用戶還可調(diào)節(jié)過載或欠載對應(yīng)的設(shè)置點）。這些開關(guān)可通過載流導(dǎo)體（纜線或電纜）磁感應(yīng)完成自行供電。CSS 系列實心電流開關(guān)的大口徑設(shè)計非常方便穿過導(dǎo)線，同時還配置了安裝架和安裝工具，因此安裝極為簡便。CSSGA2100R1 型配有一個快速功率繼電器，可用于遠(yuǎn)程電機啟動。

PBV系列 工程塑料三通自動球閥*適合用于化工，灌溉，游泳池和溫泉系統(tǒng)等。有很好的防泄漏性能，增強的TFE閥座和EPDM密封能保證使用壽命長。全PVC或CPVC的材質(zhì)，結(jié)構(gòu)牢固，重量輕?？涩F(xiàn)場選擇NPT螺紋連接或套管連接方式。PBV系列為經(jīng)濟型的自動控制閥，可配備電動或氣動執(zhí)行機構(gòu)。電動執(zhí)行機構(gòu)型為NEMA 4 全天候防護(hù)，115VAC供電，可選兩位控制或連續(xù)控制。兩位式控制采用115VAC直接驅(qū)動閥門打開或關(guān)閉，連續(xù)控制方式接受4-20mA輸入信號，控制閥門到任意位置。執(zhí)行機構(gòu)帶有過載保護(hù)，閥位指示和自潤滑傳動等功能。氣動雙作用執(zhí)行機構(gòu)采用氣源直接控制兩個進(jìn)氣孔來打開或關(guān)閉閥門，彈簧回位式氣動執(zhí)行機構(gòu)采用氣源驅(qū)動一個方向，內(nèi)部彈簧回力驅(qū)動另外一個方向?？蛇x擇SV3電磁先導(dǎo)閥來電動控制氣源壓力實現(xiàn)閥門的控制。鋁制結(jié)構(gòu)的執(zhí)行機構(gòu)，采用環(huán)氧樹脂涂層保護(hù)，使得它防腐耐用。

回路供電的KFD0型 電流隔離器 配合Dwyer?本安型變送器應(yīng)用，完全隔離保護(hù)，用于危險場合。這種隔離無需非常嚴(yán)格的接地要求。 KFD0-SCSEX1.55的特點是不需要外部電源，它很容易地安裝于標(biāo)準(zhǔn)DIN導(dǎo)軌上。