Pressure Vacuum Vents are installed on the top of vent pipes from underground or above ground fuelstorage tanks. The vent cap and internal wire screen are designed to protect the tank vent lines againstintrusion and blockage from water, debris or insects. A normally closed poppet in the valve opens at apredetermined pressure or vacuum setting to allow the tank to vent.
FEATURES & BENEFITS
- Reliable Service-vent cap drain spouts extend outward to deterrainwater entry.
- Corrosion-Resistant Construction-Aluminum body and capassure a long service life.
- Slip-on models that provide for attachment to the vent linewith set screws.
- Complies with NFPA 30 Requirements - for venting gasolinevapors upward.
| PART NO. |
FEMALE THREAD |
PRESSURE (in water column) |
VACUUM
(in water column) |
| NVP-50 |
Internal Thread NPT2" |
3 |
8 |
| BTVP-50 |
Internal Thread BSPT2" |
3 |
8 |
| BVP-50 |
Internal Thread BSP2" |
3 |
8 |
3" water column, 1 oz,8 oz,12 oz. pressure settings and 8"water column or 1/2 oz.vacuum settings are factory preset and tested.
Reliable Service-A self-guided poppet assembly ensures consistent seating of the pressure/vacuumvalve.
Installation Notes:1.The thread of the venting nozzle should be coated witha non-hardening and oil-resistant thread sealant.
2. When connecting, pay attention to the need for thewrench to act only on the clamping plane of the pipejoint, not on the composite valve body.
