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NON RETURN VALVE - PN 400 SCREWED ENDS

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DESCRIPTION :-

A reliable high pressure non-return/check valve for free flow in one direction only with minimum pressure drop. Soft seating arrangement without any force on the soft BUNA 'N or VITON seals results in zero leakage at back pressure and long life available with screwed ends. Tube/pipes ends in single and double ferrule design and combination of screwed and pipe / tube ends.


Cracking Pressure:   0.3 TO 0.5 Kg/cm2 - Standard, Special Cracking Pressure Available
Test Pressure:   25oC Room Temperature
Hydostatic:   Body - 630 Kg/cm2, Seat - 420 Kg/cm2
Pneumatic:   Seat - 60 Kg/cm2
Seal :   BUNA 'N' VITON
Material:   A 105, A 182 Gr. F 304/304L, A 182 Gr F 316/316L Monel, Hastelloy
Finish:   CS Zinc plated and dichromated, SS Natural

CONNECTIONS :-

SIZE S1 S2 BSP ENDS L1 BSP ENDS Part No. NPT ENDS L1 NPT ENDS Part No.
1/8" 22 22 65 2 NRF-R 64 2-NRVF-2
1/4" 22 22 75 4 NRF-R 76 4-NRVF-4
3/8" 22 22 85 6 NRF-R 90 6-NRVF-6
1/2" 32 32 93 8 NRF-R 64 8-NRVF-8
3/4" 41 41 108 12 NRF-R 111 12-NRVF-12
1" 50 50 129 16 NRF-R 135 16-NRVF-16
1-1/4" 65 65 155 20 NRF-R 162 20-NRVF-20
1-1/2" 65 65 166 24 NRF-R 166 24-NRVF-N
0 2" 90 90 185 32 NRF-R 191 32-NRVF-N
products

NON RETURN VALVE - PN 400 SINGLE FERRRULE METRIC TUBE ENDS

products
Cracking Pressure:   0.3 TO 0.5 Kg/cm2 - Standard, Special Cracking Pressure Available
Test Pressure:   Ambient Temperature
L Series : PN 250 S
Hydostatic: Body - 630 Kg/cm2, 420 Kg/cm2
S Series : PN 400
Hydostatic: Body - 630 Kg/cm2, 420 Kg/cm2
Pneumatic:   Seat:60 Kg/cm2
Seal :   BUNA 'N' VITON
Material:   A 105, A 182 Gr. F 304/304L, A 182 Gr F 316/316L Monel, Hastelloy
Finish:   CS Zinc plated and dichromated

CONNECTIONS :-

Series TubeO.D S1 S2 L1 L2
Approx		 Part No.
L SERIES PN 250 6 22 14 56 86 6L-SFNRV-6L
L SERIES PN 250 8 22 17 56 86 8L-SFNRV-8L
L SERIES PN 250 10 27 19 69 99 10L-SFNRV-10L
L SERIES PN 250 12 27 22 71 101 12-SFNRV-12
L SERIES PN 250 15 32 27 75 105 15-SFNRV-15
L SERIES PN 250 18 41 32 85 118 18-SFNRV-18
L SERIES PN 250 22 41 36 89 122 22L-SFNRV-22L
L SERIES PN 250 28 50 41 98 131 28L-SFNRV-28L
L SERIES PN 250 35 65 50 118 161 35-SFNRV-35L
L SERIES PN 250 42 65 60 117 163 42-SFNRV-42L

Series TubeO.D S1 S2 L1 L2
Approx		 Part No.
S SERIES PN 400 6 22 17 61 91 6S-SFNRV-6S
S SERIES PN 400 8 22 19 61 91 8S-SFNRV-8S
S SERIES PN 400 10 27 22 70 103 10S-SFNRV-10S
S SERIES PN 400 12 27 24 72 105 12S-SFNRV-12S
S SERIES PN 400 14 32 27 77 113 14S-SFNRV-14S
S SERIES PN 400 16 32 30 77 114 16S-SFNRV-16S
S SERIES PN 400 20 41 36 88 131 20S-SFNRV-20S
S SERIES PN 400 25 50 41 97 145 25S-SFNRV-25S
S SERIES PN 400 30 50 50 100 153 30S-SFNRV-30S
S SERIES PN 400 38 65 60 119 181 38S-SFNRV-38S

Note :-  Ends are tube connection to DIN : 2353, BS :4368, IS : 8805 for metric tubes sizes. They are also available in inch OD tubes to BS : 3601 / 3602 / 3005 from 1/4" OD to 1 - 1/2" OD and nominal bore pipes to BS : 1387 - 1957 / ANSI B 36 10 & 36.19 from 1/8" NB to 1.2 1/2" NB also available with "O" ring weld nipple ends in PN 400 series. Add prefix "W" to the part number as WNRD 38-S etc.

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NON RETURN VALVE - PN 400 DOUBLE FERRULE TUBE ENDS

products
Cracking Pressure:   0.3 TO 0.5 Kg/cms2 - Standard, Special Cracking Pressure Available
Test Pressure:   Ambient Temperature
Hydostatic:   Body - 630 Kg/cm2, Body - 420 Kg/cm2
Pneumatic:   Seat - 60 Kg/cm2
Seal :   BUNA 'N' VITON
Material:   A 105, A 182 Gr. F 304/304L, A 182 Gr F 316/316L Monel, Hastelloy
Finish:   CS Zinc plated and dichromated. SS-Natural

CONNECTIONS :-

TubeO.D S1 S2 L1 L2
Approx		 Part No.
1/4" 22 14 55.5 87 4-DFNRV-4
3/8" 22 17 65 99.8 6-DFNRV-6
1/2" 27 22 61.6 107.6 8-DFNRV-8
5/8" 27 25.4 58.2 107.6 10-DFNRV-10
3/4" 32 30 63.2 112.5 12-DFNRV-12
1" 41 38 70.8 133.8 16-DFNRV-16

Note :-  Bigger tube connections up to 1- 1/2" OD Size available on request.








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