PRESSURE RELIEF, BY-PASS, & ANTI-SIPHON VALVES also known as Backpressure Regulators
Series “RVDT” PTFE DIAPHRAGM
Series “TRVDT” THREE-WAY VALVE
PTFE diaphragm provides the ultimate in corrosion resistance, contaminationfree sealing and all-around versatility. No wetted elastomers. Patented Fail
Dry® safety feature. For water, highly aggressive and ultra-pure liquid applications.
PVC, CPVC, Polypropylene,
PVDF (Kynar®), PTFE.
Sizes: 1/4" to 2".
Series “RVT” and “RVD” GRADUAL OPENING
Third port offers piping convenience for bypass applications. PTFE diaphragm provides the ultimate in corrosion resistance and contamination-free sealing.
No wetted elastomers.
Patented Fail Dry® safety feature. For highly aggressive and ultra-pure liquid applications. PVC, CPVC,
Polypropylene, PVDF (Kynar®),
PTFE. Sizes: 1/2" to 1".
Prevent over pressures, maintain back pressures or automatic by-pass in vessels and piping. Series RVDM (not shown) in-line pattern has a frictionless rolling diaphragm design for sensitive operation.
Series RVT is an angle-pattern design. Settings from 5 to 100
PSI. Fail Dry®, 1/2" to 2". Series
RVD angle pattern diaphragm design (not shown) 1/8" to 1/2"
NPT, 50 to 150 PSI. Series
RVTX offered in 3” NPT.
PRESSURE REGULATING VALVES
Series “PRH”and Series “PRHM” PRESSURE REGULATOR
Series “PRD” Differential Regulator
Accurately reduce and regulate steady or varying inlet pressures and maintain a constant predetermined maximum outlet set pressure.
Recognized as the industry’s top performer for maximum flow with minimal drop-off from set pressure. Regulator setting from 5 to 125 PSI; some size/material combinations have less range. Sizes
1/4" to 3" in PVC, Natural Polypro and PVDF; 1/4" to
11/2" in CPVC and PTFE.
Series “PRA” AIR LOADED PRESSURE REGULATOR
Series “PRS” PRESSURE STABILIZER
Regulates pressure differential across filters, instruments, etc. to ensure that pressure going into the protected segment of the system does not exceed the output pressure. This valve minimizes pressure drop and improves performance while protecting the filters or instruments from overpressure. Sizes 1/4" to
3" in PVC, Natural Polypro, other materials on request.
Series “PRH-U” and “UPR” ULTRA-PURE REGULATORS
Outperforms spring loaded regulators through improved response to pressure changes; pressure is maintained without sacrificing flow.
Incorporates the patented Fail Dry® safety feature. Regulator settings from 5 to 125 PSI.
Sizes 1/4" to 3". Used with the patented
Stabilizer® Series PRS, the PRA will perform with virtually zero drop off from set pressure. Performance rivals exotic control valves but at much lower costs.
The ultimate high purity pressure regulators.
PRH-U features machined Kynar 740 body with metal ion-free EPDM elastomer and nonrising adjustment. UPR has convoluted TFM diaphragm and no external fasteners and is designed to meet SEMI F-57 specifications.
PRH-U regulator setting from 10 to 125 PSI, sizes 1/4" to 3". UPR setting from 5 to 100 PSI, sizes 1/4" to 2". Both PRH-U and UPR include choice of spigot types. Also include proprietary POM pre-assembly cleaning, 16 hour cold/hot rinse, and final Class 100 clean and double-bag procedure.
CHECK VALVES & VACUUM BREAKERS
Series “CKM” DIAPHRAGM CHECK VALVES &
Series “CKS” SELF-CLOSING CHECK VALVES
Leak-proof check valves prevent reverse flow of water, extremely corrosive and ultra-pure liquids.
Self-sealing designs allow mounting in any position.
Unique molded diaphragm in sizes 1/2", 3/4" and 1"; self-guided poppet in 11/2",
2” and 3”. Both styles are normally-closed – no reverse pressure required. They
