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U3/UR Universal Low Pressure Check Valve
Brand: Check-All Valve Manufacturing CompanyThe Universal Low Pressure (U3, UR) check valve is a one piece body machined from bar stock and is designed for minimum pressure drop.
The valve has a light-weight, compact design that provides maintenance-free, dependable service. NPT threads are per ASME B1.20.1. Also available with ISO 7 "Rp" threads. (UR). These valves can also be used as a low pressure relief valve or vacuum breaker by using the desired spring settings.
Specifications
Approvals & Certifications
- ISO 9001
Approvals & Certifications
- CE
- PED - 97/23/EC
BSP Connection
- 1" BSPP Female
- 1/2" BSPP Female
- 1-1/2" BSPP Female
- 1-1/4" BSPP Female
- 2" BSPP Female
- 2-1/2" BSPP Female
- 3" BSPP Female
- 3/4" BSPP Female
- 3/8" BSPP Female
- 4" BSPP Female
Diameter
- Orifice: 0.348" to 2.56" (8.63 to 65.02 mm)
Enclosure, Body Material
- 316 Stainless Steel
- Alloy 20 or Incoloy
- Alloy 400 or Monel
- Alloy B
- Alloy C-276 or Hastelloy
- Brass
- Carbon Steel
- Titanium
Flow Rate
- 1.9 to 140 Cv
Media
- Water
NPT Connection
- 1" NPT Female
- 1/2" NPT Female
- 1-1/2" NPT Female
- 1-1/4" NPT Female
- 2" NPT Female
- 2-1/2" NPT Female
- 3" NPT Female
- 3/4" NPT Female
- 3/8" NPT Female
- 4" NPT Female
Pipe Size
- 3/8" to 4" (9.52 to 101.6 mm)
Pressure Range
- Non-Shock Pressure-Temperature Rating - psi: 3,000 (kPa: 20,680, bar: 206.8) at 37.7° C (100° F)
- Non-Shock Pressure-Temperature Rating - psi: 1,500 (kPa: 10,000, bar: 100) at 37.7° C (100° F)
Seat / Seal Material
- Seat: AFLAS
- Seat: Buna-N
- Seat: EPDM
- Seat: Kalrez
- Seat: Metal to Metal
- Seat: Neoprene
- Seat: PTFE
- Seat: Viton
Spring Material
- 316 Stainless Steel
- AISI 631 Stainless Steel, 17-7 PH
- Alloy 400 or Monel
- Alloy B
- Alloy C-276 or Hastelloy
- Alloy X-750 (Inconel)
- Fluorinated Ethylene Propylene (FEP)
- Titanium
Tolerance
- Spring Tolerance: ± 15 %