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HONEYWELL C437H 1001 GAS/AIR PRESSURE SWITCH NEW IN BOX ALL ITEMS INCLUDED ARE PICTURED Honeywell Gas Pressure Limit Switch Pressure or differential - pressure limit controls for Industrial gas systems. SPST mercury switch. Opens circuit on pressure fall. Auto recycle. 1-26 inches water. Use C437 for spst switching or C637 for spdt switching. Compensate for momentary surges in gas pressure with a restrictive orifice in inlet pressure channel on the models with pressure range of 1 to 26 in. wc (0.25 to 6.5 kPa). Resume operation by manually resetting when using lockout application models. Impede tampering and provide dust-resistant operation with enclosed setting. Increase strength of control diaphragm with Buna-N fiber-reinforced material. Clear glass cover allows observation of interior mechanism to aid in setting and checkout. Mercury switch provides visual indication of switch position. Underwriters Laboratories Inc. Listed: File No. MP2168, Guide No. MFHX. Canadian Standards Association Certified: File No. LR1620, Guide No. 380-W-1.16. Factory Mutual Approved: Report Nos. 22018, 24127, J.I.IF4A3.AF. Industrial Risk Insurers Acceptable. 1/2 in. NPT female for main or high pressure. 1/8 in. NPT female for vent or low pressure. 106729 Cover Glass, 6 in. (152.5 mm) diameter. 106747 Cover Retaining Ring for C437 and C637 models manufactured before 1973. 118733-00021 Retaining Clip for C437 and C637 models manufactured since 1975. 139870A Cover Glass for rainproof enclosures. 122160 Orifice - 0.018 in. (0.46 mm) diameter. 124674 Orifice - 0.011 in. (0.28 mm) diameter. 4074BWK Mounting Brackets, for surface mounting. (please look at our rules and privacy policy) |
Jaime_shepard@modularparts.com (Jaime Shepard) for more information. This email will be sent to Jaime Shepard' actual email address.
