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Dwyer 蝶閥 WE20系列

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北京郎潤達科貿有限公司

經營模式：經銷商

商鋪產品：965條

所在地區(qū)：北京

聯(lián)系人：朱小姐（助理）

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產品簡介

WE20系列蝶閥有凸耳式或晶圓式閥體，配置聚四氟乙烯或三元乙丙橡膠襯墊。WE20系列蝶閥最關鍵的方面是插裝閥座設計，這減輕了與普通“鴿尾設計"閥座相關的安裝問題。由于閥座動力學不依賴于兩個法蘭之間的耦合，因此閥門扭矩更低，也更一致。閥瓣和閥體的精密加工使得插裝結構能夠保持更緊密的閥瓣與閥座的公差，每次閥門循環(huán)時都提供的低扭矩密封。閥座到閥瓣密封獨立于法蘭支撐，能夠進行全額定終端應用。執(zhí)行機構直......

詳細介紹

規(guī)格規(guī)格

SPECIFICATIONS VALVE

Service Compatible liquids, gases, and steam.

Body 2-way, wafer or lug butterfly.

Line Sizes 2 to 12".

End Connections Lug and wafer pattern designed for flanges that are ANSI Class 125 (B16.1) and ANSI Class 150 (B16.5) dimension.

壓力范圍 225 psi (15.5 bar).

Wetted Materials Body Material: Ductile iron; Disc: 316 SS; Seat: EPDM or PTFE; O-ring: EPDM; Stem: 410 SS.

Temperature Limits Disc: EPDM: -50 to 250°F (-46 to 121°C);

PTFE: 0 to 300°F (-18 to 149°C).

Bearings Nylatron.

Operator 2 to 6" 10-position locking hａnd lever; 8 to 12": manual gear.

ACTUATORS

Pneumatic “DA" and “SR" Series Type DA series is double acting and SR series is spring return (rack and pinion).

Normal Supply Pressure DA: 40 to 115 psi (2.7 to 7.9 bar); SR: 70 to 115 psi (4.8 to 7.9 bar).

Maximum Supply Pressure 120 psi (8.6 bar).

Air Connections DA03 thru DA11: 1/4" FNPT; SA03 thru SR11: 1/4" FNPT.

Housing Material Anodized aluminum body and epoxy coated aluminum end caps.

Temperature Limits -40 to 176°F (-40 to 80°C).

Accessory Mounting NAMUR standard.

Electric "TD" and "MD" Series

Power Requirements 110 VAC, 220 VAC or 24 VAC.

Power Consumption See instruction manual.

Cycle Time (per 90°) TD01 and MD01: 4 s; TD02 and MD02: 20 s; TD03 and MD03: 30 s; TD04 and MD04: 30 s; TD05 and MD05: 30 s; TD06 and MD06: 45 s; TD07 and MD07: 30 s.

Duty Rating 85%.

Enclosure Rating NEMA 4X (IP67).

Housing Material Powder coated aluminum.

Temperature Limits -22 to 140°F (-30 to 60°C).

Electrical Connection 1/2" female NPT.

Modulating Input 4 to 20 mA.

Standard Features Manual override, position indicator, and TD models come with two limit switches.

Electric "TH" and "MH" Series

Power Requirements 110 VAC, 220 VAC, 24 VAC or 24 VDC.

Power Consumption See instruction manual.

Cycle Time (per 90°) See instruction manual.

Duty Rating See instruction manual.