Threaded NPT Valves

• Spring diaphragm operated
• 1/4"-2" NPT THD
• Control pressures to 80 PSI (5.2 Bar)
• Stainless steel (Various Exotic Alloys model can be found on this page)

• All Stainless Steel standard. 
• 1/2"-3" NPT THD
• Adjustable opening pressures from 0.5 PSI (~0.03 Barg) to 3 PSI (~0.2 Barg) or factory set to 1.5 psig (0.1 barg)

• Stainless Steel , Brass  ( Also available Hastelloy, Monel, Titanium or Alloy 20 Model)
• 1/2"-2" NPT THD
• Adjustable relief pressures from 0.5 PSI (~0.03 Bar) to 15 PSI (~1 Bar)*

• Comes in Stainless Steel or Brass( Hastelloy C276, Monel, Titanium, Alloy 20 model is located here)
• 1/4"-2" NPT THD (1/2"-2" flanged)
• Adjustable relief pressures from 45 PSI (3 Bar) to 2000 PSI (138 Bar)
• Approximate spring ranges (PSI): 25-60, 50-125, 75-300, 250-750, 400-2000

• Order as Stainless Steel valve, Hastelloy Valve, Titanium Valve & some sizes in Brass (For Exotic Alloy Model Click Here)
• 1/8"-3" NPT THD
• Adjustable relief pressures from 0.5 PSI (0.03 Bar) to 400 PSI (27 Bar)* (multiple springs)
• Tamper proof design, requires valve to be removed to readjust

• Stainless Steel , Brass or PVC ( Also available Hastelloy, Monel, Titanium or Alloy 20 Model)
• 1/4"-3" NPT THD
• Adjustable relief pressures from 0.5 PSI (~0.03 Bar) to 400 PSI (~27 Bar)*

*1/4" size only

• Piston operated
• 1/4"-1" NPT THD (larger sizes can be made available)
• Orifice sizes 0.047-0.25 inch (1.2-6.4 mm) 
• Control/Relief pressures up to 4500 PSI (320 Bar) with multiple spring ranges (see table below)
• Materials: 303 & 316 Stainless Steel

• Stainless Steel and more ( Plastic model is here & Hastelloy, Titanium, Monel Alloy 20 here)
• 1/4"-2" NPT THD (Not all materials available in all sizes, See pricing pages)
• Accurate relief pressures from 0.50 PSI (0.03 Bar) to 75 PSI (5 Bar)
• Adjustable pressures in multiple spring ranges (See pricing table below)

• Stainless Steel & Plastic depending of size ( Pastic Relief Valve can be found here and Hastelloy, titanium, Alloy20, Monel here)
• 1/8"-1 1/4" NPT THD  (For larger models see RVL-20) (Not all materials available in all sizes, See pricing pages)
• Accurate relief pressures from 0.50 PSI (0.03 Bar) to 75 PSI (5 Bar)
• Adjustable pressure in multiple spring ranges (See pricing table below)

• Stainless Steel model
• 1/4"-2" NPT Threaded D (1/2"-4" flanged; see flanged model RVC05-150FLG, RVC05-300FLG, RVC05-600FLG)
• Pressure ratings to 5000 PSI (340 Bar) for specific spring ranges, see pricing pages below)

• Stainless Steel model (Monel, Hastelloy, Titanium, and Alloy 20 model also available)
• 1/4"-3" NPT Threaded D (1/2"-4" flanged; see flanged model RVC05-150FLG, RVC05-300FLG, RVC05-600FLG)
• Pressure ratings to 5000 PSI (340 Bar) for specific spring ranges, see pricing pages below)

• Piston operated
• 1/4"-1/2" NPT THD (larger sizes can be made available)
• Orifice sizes 0.047-0.25 inch (1.2-6.4 mm) 
• Control/Relief pressures up to 4500 PSI (320 Bar) with multiple spring ranges (see table below)
• Material: 316 & 303 Stainless Steel Valve. Other alloys available (See below)

• All Stainless Steel standard. (Hastelloy, Monel, Alloy 20 or Titanium Check Valve are also available)
• 1/2"-2" NPT THD
• Adjustable opening pressures from 0.5 PSI (~0.03 Barg) to 3 PSI (~0.2 Barg) or factory set to 1.5 psig (0.1 barg)

• Spring diaphragm operated
• 1/4"-4" NPT THD
• Control pressures to 80 PSI (5.2 Bar)
• Stainless steel (Various Exotic Alloys model can be found on this page)

• Piston-operated pressure regulator and bypass valve
• 1/4"-3" NPT THD (see also ANSI Back Pressure Valve Flanged models, BPS05-150 FLG, BPS05-300 FLG, BPS05-600 FLG)
• Bypass valve controls pressures from 30 PSI to 5000 PSI (340 Bar) (see table below)
• Stainless steel, brass, and various exotic alloys   

• Spring-diaphragm operated
• 3/8"-1" NPT THD (can also be special ordered flanged 1/2' & up)
• Max Recommended Inlet pressure to 150 PSI (~10 Bar) based on diaphragm limitation
• Outlet pressures to 80 PSI (5.5 Bar) (multiple spring ranges)

-Spring and Piston Operated

-¼” NPT Threaded

-Inlet Pressures Up To 6000 PSIG (410 BAR), Outlet Pressures From 0-2500 PSIG (0-170 BAR)

-In Line Serviceable

• Spring and piston operated
• 1/2"-3" NPT threaded(See model PRH04-FLG for flanged versions)
• Inlet pressures to 5000 PSI (340 Bar)
• Outlet pressures to 4500 PSI (306 Bar) (multiple spring ranges; see table below)
• Max operating temperatures -40 to 400 °F (-40 to 204 °C)

• Spring operated diaphragm pressure reducing valve
• 1/4"-1" NPT THD
• Normal Inlet pressures to 150 PSI (10 Bar), Body rated max 300 psi
• Outlet pressures from 0-50 PSI

• Spring and  double piston operated
• 1/2"-3" NPT THD Stainless Steel Model ( For Hastelloy, Alloy 20, Monel, and Titanium model contact factory)
• Inlet pressures to 600 PSI (41 Bar)
• Outlet pressures from 20 psig (1.4 barg) to 450 PSI (30 Bar) multiple spring ranges
• Max operating temperatures -40 to 300 °F (-40 to 150 °C) depending on elastomers selected

• Spring and  double piston operated
• 1/2"-3" NPT THD Stainless Steel Model ( Hastelloy, Alloy 20, Monel, and Titanium model is found here)
• Inlet pressures to 1500 PSI (103 Bar)
• Outlet pressures from 20 psig (1.4 barg) to 450 PSI (30 Bar) multiple spring ranges
• Max operating temperatures -40 to 300 °F (-40 to 150 °C) depending on elastomers selected

• Spring operated diaphragm pressure reducing valve
• 1/4"-4" NPT THD
• Normal Inlet pressures to 150 PSI (10 Bar), Body rated 220 psi (15 bar) (Higher Inlet pressures are possible with higher outlet pressures using a relief valve set no higher than 100 psig) See applications
• Outlet pressures from 8 PSI to 80 PSI (5.5 Bar) (multiple spring ranges)

• Hastelloy, Titanium & Monel and Alloy 20 (Stainless Steel Check Valve model also available)
• 1/2"-2" NPT THD
• Adjustable opening pressures from 0.5 PSI (~0.03 Barg) to 3 PSI (~0.2 Barg) or factory set to 1.5 psig (0.1 barg)