Qualitrol 201/202/205 Small Pressure Relief Device
Mechanical over pressure protection device provides pressure relief on transformers during over pressure conditions, automatically resealing once pressure has fallen. Available with a stainless steel pull ring to allow for manual operation. Optional port protection with cover for inhibiting matter from entering the valve body.
Features
- Standard models have a one-piece brass housing with stainless steel spring, pull ring and Viton O-ring seal
- Rugged design provides trouble-free over pressure protection
- All brass and stainless steel external construction
- Compact, low profile reduces damage risk
- Weather-resistant Viton O-rings withstand decades of service
- Stainless steel pull ring permits safe manual bleeding of pressure
- Meets or exceeds industry standards
- 10 PSIG valves comply with American National Standards (ANSI) C57.12.20.2007
- Highly flexible designs for many applications
- Compatible with hole fittings
- Many sizes of valves allow for a number of installation options including retrofitting older equipment
- Identification on valve makes ordering, installing or referencing hassle-free
- Flow rates available from 35 to 200 SCSM
- Designs accommodate a range of operating pressures (3.5 psi to 35 psi)
- Design prevents entry of contaminants
- Unique configuration inhibits entry of contaminants
- Covers are standard on most valves
- Sunlight, oil and ozone resistant polypropylene or PVC cap on indicator models
Options
- Available dual sealing submersible design made entirely from stainless steel for special applications
- Operating pressure and relief flow rate
- Visual indicator style
- Tank connection and sealing systems
- Completely Stainless Steel option
Applications
For over pressure protection on transformers, load tap changers and other related liquid-filled electrical apparatus.
Basic
Qualitrol 201/202/205 Small Pressure Relief Device
Standard models have a one-piece brass housing with stainless steel spring, pull ring and Viton O-ring seal
Rugged design provides trouble-free over pressure protection
All brass and stainless steel external construction
Learn MoreAdvanced
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