- Installed in vapour plumbing as safety devices to relieve pressure or vacuum build up when vapour systems are blocking during loading/unloading
- 4″ TTMA flange mounting (Aluminum)
- Stainless steel shaft and buna seals
|VRP3500||Outbreathing vent (opens at 1 PSI pressure)|
|VRV3501||Inbreathing vent (opens at 1.5" Hg vacuum)|
Founded in 1973, Ontario Hose Specialties Limited has grown from a one-man operation to a well-established six-branch supplier of industrial hose and hose products. We are located in Ontario, Quebec, Maritime and a sister branch in Buffalo, New York - producing composite hose for tank truck applications.
For over 40 years, the company has been a significant presence in the Canadian industrial hose market, producing and distributing a huge variety of industrial hoses with differing diameters and configurations as well as all related fittings, nozzles, and clamps.