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Mercoid 液位開關(guān) 1261/1263/1264系列

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產(chǎn)品簡介

重型焊接碳鋼腔室的高壓能力提供了堅固的重型控制，在100°F(38°C)下可運行1750psi(121bar)，在500°F(260°C)下可運行1650psi(114bar)，比重為0.60

產(chǎn)品介紹

重型焊接碳鋼腔室的高壓能力提供了堅固的重型控制，在100°F(38°C)下可運行1750 psi (121 bar)，在500°F(260°C)下可運行1650 psi (114 bar)，比重為0.60。電氣外殼適用于通用NEMA 1，耐候型NEMA 4X，防爆或防爆型NEMA 7, 9組B, C, D, E, F, G, I和II級要求。電氣要求是通過使用密封的快速動作或水銀開關(guān)在各種行動，包括SPST, SPDT, DPDT和DPST安排。可選電路可用于低電流、低直流電壓、高直流電流或高溫應(yīng)用。檢查模型圖，找出的開關(guān)。

C1-60:Minimum specific gravity 0.60. Process pressure 1750 psig (121 bar) at 100°F (38°C), 1650 psig (114 bar) at 500°F (260°C).

Temperature Limit:Ambient Temperature: 212°F (100°C); Process Temperature: up to 500°F (260°C).

Switch Type:Snap switch or mercury. See Model Chart.

Electrical Rating:Electrical Rating: See Model Chart.

Wiring Connections:G, WT or E enclosure: terminal block; EV enclosure: 18" (460 mm) leads.

Process Connections:Combination 1" NPT/socket weld hubs or flanges. See Model Chart.

Enclosures:G: painted steel and aluminum; WT: painted steel, aluminum and neoprene; E: aluminum; EV: aluminum, neoprene.

Wetted Parts:C1 construction is carbon steel, 303SS, 304SS and 430SS.

Weight:1261: 79 lb (36 kg); 1263: 89 lb (40 kg); 1264: 92 lb (42 kg).

Suggested Specifications:
Liquid level control shall be 1261 (1263) (1264) Series with 1" combination NPT/socket weld hub (flanged) process connections. Chamber shall be welded and suitable for operation at 1650 psi (114 bar) and 500°F (260°C) with a minimum specific gravity of 0.60. Circuit shall be (hermetically sealed) snap action (mercury) switch (SPST) (SPDT) (DPDT). Enclosure shall be general purpose (weatherproof) (explosion-proof) (explosion-proof – vapor proof). Switch mechanism shall be gravity return and shall be activated by a stainless steel float

Model Chart

EXAMPLE	1261	WT	7810	C1	60		1261-WT-7810-C1-60 Liquid Level Control, weatherproof enclosure, SPDT snap switch, fixed deadband, automatic reset, operating pressure 1750 psig (121 bar) at 100°F (38°C), 1650 psig (114 bar) at 500°F (260°C), side/bottom process connections, 1" NPT, minimum specific gravity 0.60.
CONNECTION	1261						One Vertical and One Horizontal 1" NPT
	1263						One Vertical and One Horizontal Flanged Connection
	1264						Two Vertical Flanged Connections
	1264T
ENCLOSURE		G					General Purpose, NEMA 1
		WT					Weatherproof, NEMA 3R, 4, 4X
		E					Explosion-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G. CSA approved Groups C, D, E, F, G only.
		EV					Explosion-proof/Vapor-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G. CSA approved Groups C, D, E, F, G only.
CIRCUITS (for electrical circuits see charts A & B below)			48XX				Single Stage Mercury Switch, see chart A
			48XX-XX				Two Stage, Mercury Switch, see chart A
			78XX				Single Stage, Snap Switch, see chart B
			78XX-XX				Two Stage, Snap Switch, see chart B
			78XXHM				Hermetically Sealed Snap Switch, see chart B
			98XX				Single Stage, High Capacity DC Snap Switch, use heat fins (HF) if process temperature exceeds 350°F (177°C), do not exceed 450°F (232°C), see chart B
			98XX-XX				Two Stage, High Capacity DC Snap Switch, use heat fins (HF) if process temperature exceeds 350°F (177°C), do not exceed 450°F (232°C), see chart B
CHAMBER MATERIAL				C1			Carbon Steel Body
CHAMBER MATERIAL				C216			316SS Body
MINIMUM SPECIFIC GRAVITY					60		0.60 Specific Gravity (1261 only)
MINIMUM SPECIFIC GRAVITY					660		0.60 Specific Gravity & 600# Flange (1263, 1264 only)
OPTIONS						H1	1" NPT Vent (1261, steel housing only)
						R	Manual Reset, Single Stage
						R1	Manual Reset, Lower Stage 2-Stage Control
						R2	Manual Reset, Upper Stage 2-Stage Control
						R3	Manual Reset, Both Stages 2-Stage Control
						STW	SS Tag Wired
						01	Breather Only (E-Housing only)
						02	Drain Only (E-Housing only)
						12	Breather & Drain (E-Housing only)
						23720	Fungus Proofing