PBV系列塑料自動(dòng)球閥是工業(yè)、化工、草坪和灌溉、游泳池和水療應(yīng)用以及飲用水應(yīng)用的理想選擇。該閥門具有抗剪切閥桿設(shè)計(jì)，以防止損壞時(shí)發(fā)生泄漏，增強(qiáng)TFE閥座和EPDM密封件的使用壽命更長(zhǎng)，全塑料結(jié)構(gòu)（PVC或CPVC）的重量耐用，重量輕的成本。閥門也標(biāo)配現(xiàn)場(chǎng)可選擇的NPT或承插工藝連接。
PBV是一種經(jīng)濟(jì)的自動(dòng)閥門組件，帶有電動(dòng)或氣動(dòng)執(zhí)行機(jī)構(gòu)。電動(dòng)模型是防風(fēng)雨，NEMA 4，由標(biāo)準(zhǔn)115伏交流電源供電，并可在兩個(gè)位置或比例控制。兩位執(zhí)行機(jī)構(gòu)使用115 VAC輸入驅(qū)動(dòng)每個(gè)閥口打開或關(guān)閉，而調(diào)節(jié)執(zhí)行機(jī)構(gòu)接受4至20 mA輸入，用于無(wú)限閥位。致動(dòng)器功能包括熱過(guò)載保護(hù)，以承受失速條件，視覺位置指示和潤(rùn)滑齒輪系。
氣動(dòng)雙作用致動(dòng)器使用氣源驅(qū)動(dòng)每個(gè)致動(dòng)器端口。彈簧復(fù)位氣動(dòng)執(zhí)行機(jī)構(gòu)利用氣源驅(qū)動(dòng)閥桿一個(gè)方向，內(nèi)部加載的彈簧將閥門復(fù)位到其原始位置。SV3電磁閥也可用于在供氣口之間電動(dòng)切換供氣壓力。執(zhí)行機(jī)構(gòu)是由陽(yáng)極氧化鋁和環(huán)氧涂層多年的無(wú)腐蝕服務(wù)。
產(chǎn)品應(yīng)用
•氣體或液體流量控制
特征
•抗剪閥桿
•全塑料結(jié)構(gòu)
選項(xiàng)
•防爆電動(dòng)執(zhí)行機(jī)構(gòu)-在型號(hào)上添加后綴“EX”。
•可選電動(dòng)執(zhí)行機(jī)構(gòu)電源電壓-聯(lián)系工廠更改型號(hào)-24 VAC、220 VAC、24 VDC或12 VDC。
•電磁閥——見SV3型。

Service:Compatible liquids or gases.

Body:2-way.

Line Size:1/2" to 4".

End Connections:Female NPT or socket (for 1/2" through 2"); socket only (for 2-1/2" through 4").

Pressure Limit:1/2" to 2": 232 psi (16.0 bar) @ 73°F (23°C); 2-1/2" to 4": 150 psi (10.3 bar) @ 73°F (23°C) WOG. Vacuum: 29" Hg.

Wetted Materials:Body & End Connections: PVC or CPVC; Ball & Stem: PVC or CPVC; Seat: TFE; Stem Seal: EPDM.

Temperature Limit:32 to 140°F (0 to 60°C).

Other Materials:Stem Bearing: Polypropylene (1-1/4" and up).

ACTUATORS

ElectricPower Requirements:120 VAC, 50/60 Hz, single phase. Optional 220 VAC, 24 VAC, 12 VDC, and 24 VDC.

Power Consumption (Locked Rotor Current):

Two Position: 1/2" to 1-1/2": 0.55A; 2" to 4": 0.75A. Modulating: 1/2" to 2": 0.75A; 2-1/2": 1.1A; 3" to 4": 0.75A.

Cycle Time (per 90°):Two Position: 1/2" to 1-1/2": 2.5 sec.; 2" to 2-1/2": 5 sec.; 3" to 4": 15 sec. Modulating: 1/2" to 2-1/2": 5 sec.; 3" to 4": 15 sec.

Duty Cycle:Two Position: 1/2" to 1-1/2": 75%; 2" to 4": 25%. Modulating: 75%.

Enclosure Rating:NEMA 4. Optional NEMA 7 (Class 1, Div. II, Groups A, B, C, D).

Housing Material:Aluminum with thermal bonding polyester powder finish.

Temperature Limit:0 to 150°F (-18 to 65°C).

Conduit Connection:1/2" female NPT.

Modulating Input:4 to 20 mA.

Standard Features:Manual override and visual position indicator except modulating units.