Union Pressure Relief Valves Datasheets

Double Block and Bleed Needle
from BuTech

Double Block and Bleed Valves are space saving valves that eliminate the need for large and complicated multi-valve systems. BuTech double block and bleed valves can meet pressures to 20,000 PSI (1380 bar) at 72 °F (22 °C). Boasting a compact design, they come available with needle or ball... [See More]

  • Connection Description: Threaded; Compression; BoltFlange; ClampFlange; Union; TubeFitting; ButtWeld; SocketWeld
  • Actuation: Manual; Mechanical; Electric; ElectroHydraulic; ElectroPneumatic; Pilot; Pneumatic
  • Primary Material: BrassBronze; StainlessSteel; Exotic Metal
  • Media: Air; Water; Gas
Custom Valves -- CAV
from Check-All Valve Mfg. Co.

The CAV series of valves are not catalog items but rather are custom designed and tailored to meet customer specific connections or valve configurations. If you have a check valve application where our standard catalog items do not quite match what you are looking for, contact our sales department... [See More]

  • Connection Description: Threaded (optional feature); Compression (optional feature); BoltFlange (optional feature); ClampFlange (optional feature); Union (optional feature); TubeFitting (optional feature); ButtWeld (optional feature); SocketWeld (optional feature); FaceSeal (optional feature)
  • Actuation: Pressure
  • Primary Material: Aluminum; BrassBronze; StainlessSteel (optional feature); Steel (optional feature); Exotic Metal; Titanium, Monel
  • Media: Hydraulic; Air; Water; HotWater; ColdWater  ; GroundWater; PotableWater; SaltWater (optional feature); Gas; Gasoline or Diesel Fuel (optional feature); HighPurity (optional feature); LP Gas (optional feature); NaturalGas (optional feature); SourGas (optional feature); SpecialtyCorrosive (optional feature); Steam; Liquids
Automatic RB® (Relief/Bleed) Valve -- 1600-60
from Terra Universal, Inc.

Continuously bleeds off excess internal gas to maintain a safe positive pressure inside glove boxes. Variable release mechanism automatically discharges any sudden surge of incoming gas. Protects against accidental negative pressure by functioning as a check valve. Extends life of doors and gaskets. [See More]

  • Connection Description: Threaded (optional feature); Union (optional feature)
  • Primary Material: StainlessSteel (optional feature); polymer
  • Valve Size: 0.62 to 1.00
  • Actuation: Electric
Lead Free* Reduced Pressure Zone Assembly -- LF009
from Watts

Series LF009 Lead Free* Reduced Pressure Zone Assemblies prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It consists of Lead Free* bronze body construction (1/4 to 2 in.) or Lead Free* FDA approved epoxy coated cast... [See More]

  • Connection Description: Threaded; Union (optional feature)
  • Maximum Pressure: 175.00
  • Valve Size: 0.25 to 3.00
  • Primary Material: Copper
APOLLO® 36-400 Series -- 36-_403
from Apollo Valves

Adjustable pressure setting, easy maintenance, adjustable pressure [See More]

  • Connection Description: Threaded; Union; 1/2" Threaded
  • Maximum Pressure: 300.00
  • Valve Size: 0.50
  • Controlled Pressure Range: 25.00 to 125.00
SB 10 Series -- SB10A003U
from Chemline Plastics Limited

Sensitive and reliable, designed for long life, true union ends [See More]

  • Connection Description: Union; SocketWeld; 3/8" Union Socket
  • Controlled Pressure Range: 3.00 to 60.00
  • Maximum Pressure: 150.00
  • Primary Material: PVC
Combination BPV/PRV
from Lutz - JESCO America Corp.

Creates a positive differential pressure between suction and discharge check valves of a metering pump. Ensures proper seating and dosing of a metering pump ’s check valves. Ensures consistent delivery of chemical and avoids siphoning [See More]

  • Connection Description: Union; T-Fitting
  • Media: Water
  • Actuation: Manual