Airtac NRV series: non-return valve - NRV06

Photos are for reference only. Not all models have pictures.

Description

Specifications: NRV06 is an NRV non-return valve. 06 selects a 1/8-inch connection; the omitted thread suffix selects PT threads.

Product Catalog

Download Airtac Product Catalog (PDF)

For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

Functional Alternative

Airtac NRV valve series are functional alternatives to SMC AK series.

Model Code Explained

Parameter Details
NRV Non-return valve
06 1/8 in port
Omitted thread code PT

Technical Specifications

Parameter Details
Fluid Air filtered to 40 μm or finer
Port PT1/8
Effective area 18 mm²
Cv 1
Operating pressure 0.02–1.0 MPa (catalog: 2.9–145 psi)
Proof pressure 1.5 MPa (catalog: 215 psi)
Temperature −20 to 70°C
Body Aluminum alloy
Spool POM
Valve-seat seal Rubber

Features and Operation

The valve permits flow in one direction and blocks reverse flow. The Chinese catalog identifies its purpose as preventing reverse flow following a supply-pressure drop, including a drop caused by increased air consumption. The body IN/OUT marks and the P/A symbol identify the flow direction. The compact structure combines a POM spool with a rubber-sealed valve seat and a large effective flow area.

External Dimensions — 2022 Catalog

Values follow the 2022 Chinese catalog, printed page 159. A is the axial length; square and diameter marks follow their respective drawing callouts.

Parameter Details
A 50 mm
AB Not specified for this drawing branch
Square B 25.5 mm
ØBA 29.5 mm
Square BC Not specified for this drawing branch
P PT1/8

The installation dimensions follow the 2022 Chinese catalog (printed page 159): square B = 25.5 mm and ØBA = 29.5 mm.

For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

Flow Characteristics

The applicable graph is labeled NRV06 / NRV08. It plots downstream pressure in MPa against flow in L/min, with a pressure scale from 0 to 0.7 MPa. The flow scale runs from 0 to 1500 L/min. Use the original curves with their circuit conditions; the plotted axes do not define a guaranteed maximum flow.

Internal Components

The catalog supplies separate cross-sections for NRV06/08 and NRV10–25. The list below preserves the drawing-item numbers and the components specific to each branch.

Drawing item Component
1 Body
2 Spring
3 Spool
4 End cover
5 Socket-head screw
6 O-ring
7 Washer — NRV06/NRV08 drawing
8 Sealing gasket
9 Bumper — NRV10 through NRV25 drawing

Series Ordering Options

Parameter Details
06 1/8 in
08 1/4 in
10 3/8 in
15 1/2 in
20 3/4 in
25 1 in
Thread code Omitted: PT; G: G; T: NPT

Catalog Reference Weight

69 g. Source: 2022 catalog printed page 300, NRV-6 reference. Catalog weights are for reference only; actual weight is determined by the physical product.

Optional Connections and Tubing

IN and OUT are this NRV valve’s two female PT1/8 connections. Forward flow is IN to OUT, corresponding to P to A in the circuit symbol; reverse flow is blocked. The listed connections fit the selected end only. Keep the IN and OUT lines separate and follow the body markings. No atmospheric-exhaust, pilot or manifold connection is assigned. Multiple keys retain each use. Tube OD is mm (in = inches); compression/tubing show OD × ID. These piping accessories are optional and ordered separately.

Code-prefix uses (match the longest listed family prefix): BB male–male; BKC compression fitting; BPC metal straight; BPOC metal straight; PC straight; PEB branch tee; PED run tee; PH banjo elbow; PHF female branch banjo; PHW twin banjo; PKD reducing distribution fitting; PL elbow; PLL extended elbow; POC round straight; PYB Y; PZB cross; UE PU tube; US PU tube.

Use Size / complete codes
IN,OUT male PT1/8 ↔ male PT1/8: BB0101,BB0101-S
male PT1/4 ↔ male PT1/8: BB0102,BB0102-S
male PT3/8 ↔ male PT1/8: BB0103,BB0103-S
4 × 2.5: BKC0425-01,BKC0425-01-S,UE95A040025100MBU,US98A040025100MBU
6 × 4: BKC0604-01,BKC0604-01-S,UE95A060040100MBU,US98A060040100MBU
8 × 5: BKC0805-01,BKC0805-01-S,UE95A080050100MBU,US98A080050100MBU
8 × 5.5 or 6: BKC0806-01,BKC0806-01-S
10: BPC1001,PC1001,PC1001-S,PC1001D,PC1001D-S,PEB1001,PEB1001-S,PEB1001D,PEB1001D-S,PED1001,PED1001-S,PED1001D,PED1001D-S,PL1001,PL1001-S,PL1001D,PL1001D-S,PLL1001,PLL1001-S,PLL1001D,PLL1001D-S,POC1001,POC1001-S,POC1001D,POC1001D-S,PYB1001,PYB1001-S,PYB1001D,PYB1001D-S
4: BPC401,BPOC401,PC401,PC401-M,PC401-S,PC401D,PC401D-M,PC401D-S,PEB401,PEB401-S,PEB401D,PEB401D-S,PED401,PED401-S,PED401D,PED401D-S,PH401,PH401-S,PH401D,PH401D-S,PHW401,PHW401-S,PHW401D,PHW401D-S,PL401,PL401-M,PL401-S,PL401D,PL401D-M,PL401D-S,PLL401,PLL401-S,PLL401D,PLL401D-S,POC401,POC401-S,POC401D,POC401D-S,PYB401,PYB401-S,PYB401D,PYB401D-S
6: BPC601,BPOC601,PC601,PC601-M,PC601-S,PC601D,PC601D-M,PC601D-S,PEB601,PEB601-S,PEB601D,PEB601D-S,PED601,PED601-S,PED601D,PED601D-S,PH601,PH601-S,PH601D,PH601D-S,PHW601,PHW601-S,PHW601D,PHW601D-S,PL601,PL601-M,PL601-S,PL601D,PL601D-M,PL601D-S,PLL601,PLL601-S,PLL601D,PLL601D-S,POC601,POC601-S,POC601D,POC601D-S,PYB601,PYB601-S,PYB601D,PYB601D-S,PZB601,PZB601-S,PZB601D,PZB601D-S
8: BPC801,BPOC801,PC801,PC801-S,PC801D,PC801D-S,PEB801,PEB801-S,PEB801D,PEB801D-S,PED801,PED801-S,PED801D,PED801D-S,PH801,PH801-S,PH801D,PH801D-S,PHW801,PHW801-S,PHW801D,PHW801D-S,PL801,PL801-S,PL801D,PL801D-S,PLL801,PLL801-S,PLL801D,PLL801D-S,POC801,POC801-S,POC801D,POC801D-S,PYB801,PYB801-S,PYB801D,PYB801D-S,PZB801,PZB801-S,PZB801D,PZB801D-S
12: PC1201,PC1201-S,PC1201D,PC1201D-S,PL1201,PL1201-S,PL1201D,PL1201D-S
4; male RA PT1/8 / female RB PT1/8: PHF401,PHF401-S,PHF401D,PHF401D-S
6; male RA PT1/8 / female RB PT1/8: PHF601,PHF601-S,PHF601D,PHF601D-S
8; male RA PT1/8 / female RB PT1/8: PHF801,PHF801-S,PHF801D,PHF801D-S
main 6 / branch 4: PKD6-401,PKD6-401-S,PKD6-401D,PKD6-401D-S
10 × 6.5: UE95A100065100MBU,US98A100065100MBU
12 × 8: UE95A120080100MBU,US98A120080100MBU

These optional connections and tubes are ordered separately. Match PT/G/NPT exactly and use the specified thread seal or face gasket. Both NRV ports are female and need matching male connections. Match tube OD and compression OD/ID; metric and inch sizes are not interchangeable. Use suitable soft nylon/PU tube and check seating, clearance, bends and flow. Tighten compression bodies by the hex, not tube nuts. Where listed: D is black, blank grey, -M miniature; -S denotes only the specified 304 stainless parts.

PHF fittings use male RA at the NRV; female RB requires its own matching male thread and seal and is not a tube socket. Match both adapter ends to their separate mating parts. Branch fittings join only the intended common circuit; do not connect the IN and OUT sides around the NRV and bypass its non-return function.

The complete path must remain within this NRV valve’s 0.02–1.0 MPa and −20–70°C limits with air filtered to 40 µm or finer, and every stricter fitting or tube limit. Proof pressure is not working pressure. Follow the IN-to-OUT body markings and P-to-A circuit symbol. The 0.02 MPa operating minimum is not a specified cracking-pressure differential. These passive connections do not change the valve’s flow direction or non-return function.

Standard push-in fittings: ≤1 MPa, −20–70°C. Metal BPC/BPOC: ≤0.9 MPa; compression fittings/thread adapters: ≤1 MPa. The listed metal push-in, compression and adapter groups have a 0–150°C range, limiting the connected NRV path to 0–70°C or narrower. Apply every stricter component limit; neither the 1 MPa fitting rating nor the 150°C component rating extends the NRV rating. No system vacuum rating is established.

US98A/UE95A examples are separately ordered blue 100 m metric PU coils rated 1 MPa at 23°C. US98A: −20–70°C; UE95A: −40–70°C. Match OD/ID and derate as temperature rises within the NRV and fitting limits; 1 MPa is not assured throughout. Use inch tube where the selected connection requires it; metric tube is not a substitute.

Items marked discontinued are historical service references, not current standard recommendations. Confirm availability or a manufacturer-approved replacement. An unmarked catalogue entry does not promise current production, stock or delivery.

Product form

Specifications: NRV06 is an NRV non-return valve. 06 selects a 1/8-inch connection; the omitted thread suffix selects PT threads. Product... Read more

SKU: NRV06

$13.43 Incl. VAT

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    Description

    Specifications: NRV06 is an NRV non-return valve. 06 selects a 1/8-inch connection; the omitted thread suffix selects PT threads.

    Product Catalog

    Download Airtac Product Catalog (PDF)

    For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

    Functional Alternative

    Airtac NRV valve series are functional alternatives to SMC AK series.

    Model Code Explained

    Parameter Details
    NRV Non-return valve
    06 1/8 in port
    Omitted thread code PT

    Technical Specifications

    Parameter Details
    Fluid Air filtered to 40 μm or finer
    Port PT1/8
    Effective area 18 mm²
    Cv 1
    Operating pressure 0.02–1.0 MPa (catalog: 2.9–145 psi)
    Proof pressure 1.5 MPa (catalog: 215 psi)
    Temperature −20 to 70°C
    Body Aluminum alloy
    Spool POM
    Valve-seat seal Rubber

    Features and Operation

    The valve permits flow in one direction and blocks reverse flow. The Chinese catalog identifies its purpose as preventing reverse flow following a supply-pressure drop, including a drop caused by increased air consumption. The body IN/OUT marks and the P/A symbol identify the flow direction. The compact structure combines a POM spool with a rubber-sealed valve seat and a large effective flow area.

    External Dimensions — 2022 Catalog

    Values follow the 2022 Chinese catalog, printed page 159. A is the axial length; square and diameter marks follow their respective drawing callouts.

    Parameter Details
    A 50 mm
    AB Not specified for this drawing branch
    Square B 25.5 mm
    ØBA 29.5 mm
    Square BC Not specified for this drawing branch
    P PT1/8

    The installation dimensions follow the 2022 Chinese catalog (printed page 159): square B = 25.5 mm and ØBA = 29.5 mm.

    For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

    Flow Characteristics

    The applicable graph is labeled NRV06 / NRV08. It plots downstream pressure in MPa against flow in L/min, with a pressure scale from 0 to 0.7 MPa. The flow scale runs from 0 to 1500 L/min. Use the original curves with their circuit conditions; the plotted axes do not define a guaranteed maximum flow.

    Internal Components

    The catalog supplies separate cross-sections for NRV06/08 and NRV10–25. The list below preserves the drawing-item numbers and the components specific to each branch.

    Drawing item Component
    1 Body
    2 Spring
    3 Spool
    4 End cover
    5 Socket-head screw
    6 O-ring
    7 Washer — NRV06/NRV08 drawing
    8 Sealing gasket
    9 Bumper — NRV10 through NRV25 drawing

    Series Ordering Options

    Parameter Details
    06 1/8 in
    08 1/4 in
    10 3/8 in
    15 1/2 in
    20 3/4 in
    25 1 in
    Thread code Omitted: PT; G: G; T: NPT

    Catalog Reference Weight

    69 g. Source: 2022 catalog printed page 300, NRV-6 reference. Catalog weights are for reference only; actual weight is determined by the physical product.

    Optional Connections and Tubing

    IN and OUT are this NRV valve’s two female PT1/8 connections. Forward flow is IN to OUT, corresponding to P to A in the circuit symbol; reverse flow is blocked. The listed connections fit the selected end only. Keep the IN and OUT lines separate and follow the body markings. No atmospheric-exhaust, pilot or manifold connection is assigned. Multiple keys retain each use. Tube OD is mm (in = inches); compression/tubing show OD × ID. These piping accessories are optional and ordered separately.

    Code-prefix uses (match the longest listed family prefix): BB male–male; BKC compression fitting; BPC metal straight; BPOC metal straight; PC straight; PEB branch tee; PED run tee; PH banjo elbow; PHF female branch banjo; PHW twin banjo; PKD reducing distribution fitting; PL elbow; PLL extended elbow; POC round straight; PYB Y; PZB cross; UE PU tube; US PU tube.

    Use Size / complete codes
    IN,OUT male PT1/8 ↔ male PT1/8: BB0101,BB0101-S
    male PT1/4 ↔ male PT1/8: BB0102,BB0102-S
    male PT3/8 ↔ male PT1/8: BB0103,BB0103-S
    4 × 2.5: BKC0425-01,BKC0425-01-S,UE95A040025100MBU,US98A040025100MBU
    6 × 4: BKC0604-01,BKC0604-01-S,UE95A060040100MBU,US98A060040100MBU
    8 × 5: BKC0805-01,BKC0805-01-S,UE95A080050100MBU,US98A080050100MBU
    8 × 5.5 or 6: BKC0806-01,BKC0806-01-S
    10: BPC1001,PC1001,PC1001-S,PC1001D,PC1001D-S,PEB1001,PEB1001-S,PEB1001D,PEB1001D-S,PED1001,PED1001-S,PED1001D,PED1001D-S,PL1001,PL1001-S,PL1001D,PL1001D-S,PLL1001,PLL1001-S,PLL1001D,PLL1001D-S,POC1001,POC1001-S,POC1001D,POC1001D-S,PYB1001,PYB1001-S,PYB1001D,PYB1001D-S
    4: BPC401,BPOC401,PC401,PC401-M,PC401-S,PC401D,PC401D-M,PC401D-S,PEB401,PEB401-S,PEB401D,PEB401D-S,PED401,PED401-S,PED401D,PED401D-S,PH401,PH401-S,PH401D,PH401D-S,PHW401,PHW401-S,PHW401D,PHW401D-S,PL401,PL401-M,PL401-S,PL401D,PL401D-M,PL401D-S,PLL401,PLL401-S,PLL401D,PLL401D-S,POC401,POC401-S,POC401D,POC401D-S,PYB401,PYB401-S,PYB401D,PYB401D-S
    6: BPC601,BPOC601,PC601,PC601-M,PC601-S,PC601D,PC601D-M,PC601D-S,PEB601,PEB601-S,PEB601D,PEB601D-S,PED601,PED601-S,PED601D,PED601D-S,PH601,PH601-S,PH601D,PH601D-S,PHW601,PHW601-S,PHW601D,PHW601D-S,PL601,PL601-M,PL601-S,PL601D,PL601D-M,PL601D-S,PLL601,PLL601-S,PLL601D,PLL601D-S,POC601,POC601-S,POC601D,POC601D-S,PYB601,PYB601-S,PYB601D,PYB601D-S,PZB601,PZB601-S,PZB601D,PZB601D-S
    8: BPC801,BPOC801,PC801,PC801-S,PC801D,PC801D-S,PEB801,PEB801-S,PEB801D,PEB801D-S,PED801,PED801-S,PED801D,PED801D-S,PH801,PH801-S,PH801D,PH801D-S,PHW801,PHW801-S,PHW801D,PHW801D-S,PL801,PL801-S,PL801D,PL801D-S,PLL801,PLL801-S,PLL801D,PLL801D-S,POC801,POC801-S,POC801D,POC801D-S,PYB801,PYB801-S,PYB801D,PYB801D-S,PZB801,PZB801-S,PZB801D,PZB801D-S
    12: PC1201,PC1201-S,PC1201D,PC1201D-S,PL1201,PL1201-S,PL1201D,PL1201D-S
    4; male RA PT1/8 / female RB PT1/8: PHF401,PHF401-S,PHF401D,PHF401D-S
    6; male RA PT1/8 / female RB PT1/8: PHF601,PHF601-S,PHF601D,PHF601D-S
    8; male RA PT1/8 / female RB PT1/8: PHF801,PHF801-S,PHF801D,PHF801D-S
    main 6 / branch 4: PKD6-401,PKD6-401-S,PKD6-401D,PKD6-401D-S
    10 × 6.5: UE95A100065100MBU,US98A100065100MBU
    12 × 8: UE95A120080100MBU,US98A120080100MBU

    These optional connections and tubes are ordered separately. Match PT/G/NPT exactly and use the specified thread seal or face gasket. Both NRV ports are female and need matching male connections. Match tube OD and compression OD/ID; metric and inch sizes are not interchangeable. Use suitable soft nylon/PU tube and check seating, clearance, bends and flow. Tighten compression bodies by the hex, not tube nuts. Where listed: D is black, blank grey, -M miniature; -S denotes only the specified 304 stainless parts.

    PHF fittings use male RA at the NRV; female RB requires its own matching male thread and seal and is not a tube socket. Match both adapter ends to their separate mating parts. Branch fittings join only the intended common circuit; do not connect the IN and OUT sides around the NRV and bypass its non-return function.

    The complete path must remain within this NRV valve’s 0.02–1.0 MPa and −20–70°C limits with air filtered to 40 µm or finer, and every stricter fitting or tube limit. Proof pressure is not working pressure. Follow the IN-to-OUT body markings and P-to-A circuit symbol. The 0.02 MPa operating minimum is not a specified cracking-pressure differential. These passive connections do not change the valve’s flow direction or non-return function.

    Standard push-in fittings: ≤1 MPa, −20–70°C. Metal BPC/BPOC: ≤0.9 MPa; compression fittings/thread adapters: ≤1 MPa. The listed metal push-in, compression and adapter groups have a 0–150°C range, limiting the connected NRV path to 0–70°C or narrower. Apply every stricter component limit; neither the 1 MPa fitting rating nor the 150°C component rating extends the NRV rating. No system vacuum rating is established.

    US98A/UE95A examples are separately ordered blue 100 m metric PU coils rated 1 MPa at 23°C. US98A: −20–70°C; UE95A: −40–70°C. Match OD/ID and derate as temperature rises within the NRV and fitting limits; 1 MPa is not assured throughout. Use inch tube where the selected connection requires it; metric tube is not a substitute.

    Items marked discontinued are historical service references, not current standard recommendations. Confirm availability or a manufacturer-approved replacement. An unmarked catalogue entry does not promise current production, stock or delivery.

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