PBV系列工程塑料二通自動(dòng)球閥
產(chǎn)品說明:
電動(dòng)和氣動(dòng)執(zhí)行機(jī)構(gòu)
PBV系列 工程塑料三通自動(dòng)球閥最適合用于化工,灌溉,游泳池和溫泉系統(tǒng)等。有很好的防泄漏性能,增強(qiáng)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(chǎng)選擇NPT螺紋連接或套管連接方式。
PBV系列為經(jīng)濟(jì)型的自動(dòng)控制閥,可配備電動(dòng)或氣動(dòng)執(zhí)行機(jī)構(gòu)。電動(dòng)執(zhí)行機(jī)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(dòng)閥門打開或關(guān)閉,連續(xù)控制方式接受4-20mA輸入信號(hào),控制閥門到任意位置。執(zhí)行機(jī)構(gòu)帶有過載保護(hù),閥位指示和自潤滑傳動(dòng)等功能。
氣動(dòng)雙作用執(zhí)行機(jī)構(gòu)采用氣源直接控制兩個(gè)進(jìn)氣孔來打開或關(guān)閉閥門,彈簧回位式氣動(dòng)執(zhí)行機(jī)構(gòu)采用氣源驅(qū)動(dòng)一個(gè)方向,內(nèi)部彈簧回力驅(qū)動(dòng)另外一個(gè)方向。可選擇SV3電磁先導(dǎo)閥來電動(dòng)控制氣源壓力實(shí)現(xiàn)閥門的控制。鋁制結(jié)構(gòu)的執(zhí)行機(jī)構(gòu),采用環(huán)氧樹脂涂層保護(hù),使得它防腐耐用。
產(chǎn)品規(guī)格:
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
Electric
Power 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.
Pneumatic "DA" and "SR" Series
Type: DA series is double acting and SR series is spring return (rack and pinion).
Normal Supply Pressure: 80 psi (5.5 bar).
Maximum Supply Pressure: 120 psig (8 bar).
Air Connections: DA1 to 5 and SR2 to 5: 1/8" female NPT; all others: 1/4" female NPT.
Air Consumption (per stroke): DA1: 2.32 cu. in.; DA2: 9.34 cu. in.; DA3: 17.21 cu. in.; DA4: 20.5 cu. in.; SR2: 9.34 cu. in.; SR3: 17.21 cu. in.; SR6: 54.34 cu. in.; SR7: 85.43 cu. in.
Cycle Time (per 90°): DA1: .03 sec.; DA2: .04 sec.; DA3: .08 sec.; DA4: .12 sec.; SR2: .09 sec.; SR3: .14 sec.; SR6: .46 sec.; SR7: .83 sec.
Housing Material: Anodized aluminum body and epoxy coated aluminum end caps.
Temperature Limit: -4 to 180°F (-20 to 82°C).
Accessory Mounting: NAMUR standard.
Standard Features: Visual position indicator.
聯(lián)系人:彭工
手機(jī):18918462396
電話:021-59718851
地址: 上海市青浦區(qū)青浦工業(yè)園清河灣路819弄