
Liquid Controls A2843 2" Differential Valve for LPG Propane Natural Gas Systems
Part/SKU: A2843
$166.48
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Available to order: 4.
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Choose the valve around the transfer or shutoff duty, paying attention to the flow path, sealing materials and how the handle will be operated.
| Product type | Globe, angle and hose-end shutoff valves |
|---|---|
| Part / SKU | 7551P |
Service reminder: Read the model’s actual LP gas rating. A WOG marking alone does not establish suitability for every gas application.
Have gas-system installation and service completed by qualified personnel. Use the current instructions for the exact model and the requirements that apply at the installation location.
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**Engineered Controls 7551P — 3/4" MNPT x 1/2" FNPT LP Gas Liquid Transfer Angle Valve
For Bulk Storage Tanks • Flange Seal Stem • Leak-Proof Operation**The Engineered Controls 7551P liquid transfer angle valve is designed specifically for the liquid withdrawal and vapor service of LP-Gas from bulk storage containers. When used with a Chek-Lok or compatible installation, this valve provides high-capacity, leak-free performance for propane transfer and vapor equalization applications.
Built with a flange seal stem design, the 7551P eliminates the need for packing adjustment—reducing maintenance and ensuring long-term leak-proof operation. Large internal flow passages reduce pressure drop and prevent cavitation, increasing reliability and transfer capacity.
This model includes a plugged 1/4" NPT boss for installing a hydrostatic relief valve or vent valve, and a resilient swivel seat disc that delivers longer life and positive shutoff.
Key Features3/4" MNPT inlet × 1/2" FNPT outletFlange seal stem ensures leak-proof operation with no repackingLarge interior flow ports minimize restriction & cavitationSwivel seat disc improves sealing and service lifePlugged 1/4" NPT boss for hydrostatic relief valve or vent valve
Designed specifically for LP-Gas liquid transfer using Chek-Lok systems
Ideal for vapor LP-gas service and NH3 applicator tank dip tube valvesBrass body with precision-machined componentsApplicationsLP gas liquid withdrawal from storage tanksBulk plant operationsCylinder and fuel distributor filling systemsVapor equalization serviceNH3 applicator tanks (when used in couplings with dip tubes)Transfer systems where leak-free angle valves are criticalInstallation NotesWhen installed in 1-1/4" × 3/4" NPT reducing couplings, the 3/4" female threads must meet forged steel 3000 lb. half-coupling standards.
Valve will not function properly if installation depth or coupling type is incorrect.
| Part / SKU | 7551P |
|---|
Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.
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