Heavy Duty Angle Pattern Relief/Bypass/Backpressure Valves
Series RVTX
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- Offered in Geon® PVC, Corzan® CPVC, PTFE, Kynar® PVDF & Natural Polypropylene
- 3" sizes
- Protect systems and equipment from dangerous overpressures.
- For use as back pressure valve, straight relief, by-pass relief or
back pressure regulator.
- Offer wide range of pressure settings from 5-100 PSI (0.4-8.0 BAR)
with sensitive operation.
- Designed with a smooth & balanced shaft for non-sticking operation.
- Rolling diaphragm seal isolates spring, prevents corrosion
- Super high capacity 200 GPM design
At right is a photo of the "solid" body design, which is the appearance of all RVTX models constructed since 2007 with the exception of CPVC models. Appearance of CPVC models depicted in photos below. Internal design, dimensions, and properties are identical; the two versions differ in external appearance only.
Click here for brief video of how a refief valve works.
The Series RVTX is an angle-pattern high-flow capacity 3" NPT Relief Valve, for corrosive and ultra-pure liquids. It is constructed of Grade 1, Type 1 PVC with a choice of FKM or EPDM elastomeric seals. Because of the many functions this valve performs, it is also known as a back pressure regulator and bypass valve.
The sensing element is a solid PVC shaft (or stem) with a PTFE thrust washer to reduce friction; working in conjunction with a large area rolling diaphragm. This feature enables the valve to open more rapidly, providing greater flow and sensitivity to changing pressure. Control is provided by a stainless steel spring, which is not in contact with liquid. The valve adjusting bolt and lock nut are high density polyethylene (HDPE). External fasteners are stainless steel.
Relief/back pressure setting is infinitely adjustable from 5 to 100 psi. When pressure drops below the set point, the valve automatically reseats with a bubble-tight seal. Maximum flow rate is 200 gallons per minute. Designed for heavy duty industrial use, the RVTX is ideal for acids, salt solutions, and other highly corrosive liquids. The design can be customized or made in other materials for special needs.
Part number for PVC with FKM Seals is RVTX300V-PV.
For EPDM seals, use part number RVTX300EP-PV.
Photo immediately at right depicts CPVC models, and other body material designs prior to 2007. Internal design, dimensions, and properties are identical; the two versions differ in external appearance only.
Body type for Geon PVC (2007 and later), Natural Polypro, Kynar PVDF, PTFE material:
Original design; still used for Corzan CPVC material:
Overall dimensions: Height: 13.1" plus 4.5" max. adjusting screw.
Diameter: 6". Height from base to center of outlet port is 3.5".
Width from center of inlet port to end of outlet port is 3.6".
Flow capacity is max. 200 GPM or 757 liters per minute.
