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HWC437F-1003 Honeywell (C437F1003) Gas Pressure Limit Switch 1 - 10 PSI

SKU: HWC437F-1003
RETAIL: 231.00
BASE PRICE: 210.00

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Product #: C437F-1003
Product Name: Honeywell Gas Pressure Limit Switch
Description: Pressure or differential - pressure limit controls for industrial gas systems. DPST mercury switch, 2 separate circuits; one normally open and one normally closed. 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.

32 F to 125 F (0 C to 52 C).

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.

Differential at midscale. Subtractive for C437D, J, G. Additive for C437E, F, H, K and C637B.
Two separate circuits. One circuit breaks and the other makes on a pressure rise or fall.
Pricing Information:
Unit Price: $132.69
Package Type: Each
Units Per Package: 1
Product Details:
-: Pressure or differential - pressure limit controls for industrial gas systems.
Pressure Range: 1 to 26 in. water
Differential: 1-1/4 in.
Pressure Surge, Maximum: 5.0 psi, 34.5 kPa
Switch Mercury: 2 Spst
Switch Action (Break): Fall and Rise
Reset, Manual (Lockout On Switch Break): No
Minimum Order Quantity: 1
Trade Name: Honeywell
Trade Name Type: Registered Trademark
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