PV-NR · Catalogue

Bronze check valves

A check valve opens with the flow and closes when it reverses, with nothing to operate. Swing checks suit horizontal runs; lift checks also work in vertical lines with the flow upward.

A bronze swing check valve with screwed ends and a hexagon cap, on a bed of dark foundry sand.
Sizes
15 to 80 mm
Pressure
Class 2
Material
Bronze LTB 2
Standard
IS 778 · BIS licence

PV-NR-2S

Swing check valve, screwed, Class 2

Hinged bronze disc, screwed cap for inspection. For horizontal lines.

Sizes
15 to 80 mm · ½ to 3 in
Pressure
Class 2 · up to 1.6 MPa (16 bar)
Minimum order
50 nos per size
Lead time
2 to 3 weeks
Specification of PV-NR-2S Swing check valve, screwed, Class 2
ItemValueUnitStandard
Body and capLeaded tin bronze LTB 2IS 318
Disc and hingeBronzeIS 318
Hinge pinStainless steel AISI 304
EndsFemale screwed, BSP taperIS 554
Body test2.4MPa
Seat test (back pressure)1.6MPa
FittingHorizontal only, arrow in the direction of flow

Standards met

  • IS 778:1984 (Class 2)

Tested, every piece

  • Shell test: 2.4 MPa hydrostatic, held 60 s, no visible leak
  • Seat test: 1.6 MPa hydrostatic each side, held 60 s
  • Air seat test at 0.6 MPa on request

PV-NR-2L

Lift check valve, screwed, Class 2

Guided bronze disc. For horizontal lines, or vertical with the flow upward.

Sizes
15 to 50 mm · ½ to 2 in
Pressure
Class 2 · up to 1.6 MPa (16 bar)
Minimum order
50 nos per size
Lead time
2 to 3 weeks
Specification of PV-NR-2L Lift check valve, screwed, Class 2
ItemValueUnitStandard
Body and capLeaded tin bronze LTB 2IS 318
DiscBronze, guidedIS 318
Body test2.4MPa
Seat test (back pressure)1.6MPa

Standards met

  • IS 778:1984 (Class 2)

Tested, every piece

  • Shell test: 2.4 MPa hydrostatic, held 60 s, no visible leak
  • Seat test: 1.6 MPa hydrostatic each side, held 60 s
  • Air seat test at 0.6 MPa on request

Send us the drawing. We'll send a price.

A quote with price, lead time, test pressures and packing, within two working days.

  1. Within 2 working hours

    A reply from a person, with a request number, asking anything we need to know.

  2. Within 2 working days

    The quote, as a PDF by email. Drawings to order may take a day longer.

  3. When you order

    A proforma invoice and the delivery date we'll keep. Bronze stock sizes ship within a week.