Diaphragm Valve

Valve Solutions For Corrosive Applications

Lined Diaphragm Valve

Valve Design
BS EN 13397
Shell Design
ANSI B 16.34
Face To Face
EN 558-1 SERIES 7
Flange Connection Rating
ANSI B 16.5, 150# / DIN PN 10 / JIS
Testing Standard
BS EN 12266-1
Connection
FLANGED, RF
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Diaphragm Valve

Valve Solutions For Corrosive Applications

Lined Diaphragm Valve

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Specifications

Diaphragm Valve

Valve Design
BS EN 13397
Shell Design
ANSI B 16.34
Face To Face
EN 558-1 SERIES 7
Flange Connection Rating
ANSI B 16.5, 150# / DIN PN 10 / JIS
Testing Standard
BS EN 12266-1
Connection
FLANGED, RF

Lined Diaphragm Valve Features

Diaphragm Valve

Product Features and Options Available

UNP offers both Rising Stem/Spindle & Rising Hand wheel design Diaphragm valves.

UNP offer regular (TFM + EPDM) double as well (PTFE+PVDF+EPDM) tripple layer Diaphragms to avoid failure of Diaphragm due to permeation especially for chlorine application.

UNP lining is anchored with dove tail groove and makes it’s valve suitable for both Pressure and Vacuum Applications.

UNP offers all metal components in investment castings, ensuring intact and homogeneous lining and having an overall even thickness of lining at intricate contours.

UNP uses virgin raw materials such as PFA from Dupont or Dyneon and specific grades are used which are high purity grade, enables use of it’s valves even in Pharma and food industries.

UNP can offer flange dimensions in DIN, ANSI and JIS standards.

UNP Valves are offered in manual, pneumatically & electrically actuated as well with modulating control feature.

UNP does lining of all Valves by latest injection molding process and not by transfer molding process makes its lining more compact and reliable.

UNP subjects it’s 100% valve quantity produced to both Hydro and Pneumatic Test ensuring 100% reliability for performance of valves under pressure.

UNP is an ISO 9001:2015 company and is having CE certificate for all its Lined Diaphragm valves design under PED 1128.

UNP provides all lining materials for corrosive applications such as PFA, FEP, PVDF, ETFE, ECTFE and PPH.

UNP standard body casting material is ASTM A 216 GR. WCB and upon requirement can also provide ASTM A 351 GR. CF 8 or CF 8 M / ASTM A 890 GR. 4A (CD3MN) / Super Duplex.

UNP provides Antistatic PFA lined Valves in grade C 980 of Dupont or 8502 ESDZ of Dyneon as just the grounding spring device can not conduct static charge from inside of the valve as normal grade of PFA is non-conductive liner in valve.

Tests Performed

TEST PERFORMED 0.5” TO 4” 6” TO 8” 10”
HIGH PR. SHELL TEST HYDRO 225 PSI 15kg/cm2 128 PSI 9kg/cm2 85 PSI 6kg/cm2
HIGH PR. SEAT TEST HYDRO 165 PSI 11kg/cm2 90PSI 6.6kg/cm2 64 PSI 4.5kg/cm2
LOW PR. SEAT TEST PNEUMATIC 85 PSI 6kg/cm2 50 PSI 3.5kg/cm2 50 PSI 3.5kg/cm2
SPARK TEST KVDC
SPARK TEST 20 KDVC

VALVE NET WEIGHTS

SIZE CHECK WEIGHT
kg lb
0.5” 2.20 4.85
0.75” 3.75 8.26
1" 3.65 8.04
1.5” 7.35 16.20
2" 11.60 25.60
2.5” 18.00 39.70
3" 26.00 57.30
4" 41.40 91.30
6" 86.90 191.60
8" 205.00 451.10
10" 250.00 551.15

  • A. RISING HANDWHEEL (1/2" TO 3”)

    PART LIST

    PART NO. DESCRIPTION MATERIAL OF CONSTRUCTION
    1 Body* ASTM A 216 GR. WCB
    2 Bonnet* ASTM A 216 GR. WCB
    3 Spindle** SS 304
    4 Compressor* ASTM A 216 GR. WCB
    5 Diaphragm TFM
    6 Diaphragm Backing Pad EPDM
    7 Hand Wheel ASTM A 216 GR. WCB
    8 Body Bolts ASTM A 193 GR. B7
    9 Nuts ASTM A 194 GR. 2H
    10 Adaptation Bolts SS 304
    11 Bonnet Sleeve GUNMETAL
    12 Grease Cup POLYPROPYLENE
    13 Hand Wheel Bolt+Nut SS 304
    14 Grub Screw for Grease Cup MS
    15 Grub Screw for Bonnet Sleeve MS
    16 Spring Washers for Body Bolts HT STEEL
    17 Spindle Washer SS 304
    18 Lining Material*** PFA

    DIMENSIONS

    Size L ±0.11 IN. ØD ±0.04 IN. Ød ±0.04 IN. T +0.11/-0.00 IN. ØD1 ±0.04 Size IN. H ±0.19 IN. ØI ±0.20 IN. ØK ±0.062 IN. n Ø
    OPEN CLOSE
    INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM
    1/2" 15 4.49 114 3.50 89 0.59 15 0.51 13 1.38 35 3.74 95 3.15 80 3.23 82 2.36 60 4 5/8 16
    3/4" 20 4.88 124 3.86 98 0.79 20 0.59 15 1.69 43 5.12 130 4.72 120 4.72 120 2.76 70 4 5/8 16
    1" 25 5.24 133 4.25 108 0.98 25 0.63 16 2.01 51 5.16 131 4.61 117 4.84 123 3.11 79 4 5/8 16
    1.5" 40 6.54 166 5.00 127 1.50 38 0.75 19 2.87 73 7.36 187 6.50 165 5.59 142 3.86 98 4 5/8 16
    2" 50 7.72 196 5.98 152 1.97 50 0.83 21 3.62 92 8.39 213 7.52 191 5.98 152 4.76 121 4 3/4 19
    2.5" 65 8.74 222 7.01 178 2.48 63 0.91 23 4.13 105 9.65 245 8.62 219 8.58 218 5.51 140 4 3/4 19
    3” 80 10.24 260 7.52 191 2.95 75 0.98 25 5.00 127 10.24 260 8.98 228 8.78 223 5.98 152 4 3/4 19

  • B. RISING HANDWHEEL (4")

    PART LIST

    PART NO. DESCRIPTION MATERIAL OF CONSTRUCTION
    1 Body* ASTM A 216 GR. WCB
    2 Bonnet* ASTM A 216 GR. WCB
    3 Spindle** SS 304
    4 Compressor* ASTM A 216 GR. WCB
    5 Diaphragm TFM
    6 Diaphragm Backing Pad EPDM
    7 Hand Wheel ASTM A 216 GR. WCB
    8 Body Bolts ASTM A 193 GR. B7
    9 Nuts ASTM A 194 GR. 2H
    10 Adaptation Bolts SS 304
    11 Bonnet Sleeve GUNMETAL
    12 Grease Cup POLYPROPYLENE
    13 Hand Wheel Bolt+Nut SS 304
    14 Grub Screw for Grease Cup MS
    15 Grub Screw for Bonnet Sleeve MS
    16 Spring Washers for Body Bolts HT STEEL
    17 Spindle Washer SS 304
    18 Lining Material*** PFA

    DIMENSIONS

    Size L ±0.11 IN. ØD ±0.04 IN. Ød ±0.04 IN. T +0.11/-0.00 IN. ØD1 ±0.04 Size IN. H ±0.19 IN. ØI ±0.20 IN. ØK ±0.062 IN. n Ø
    OPEN CLOSE
    INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM
    4" 100 12.24 311 9.06 230 3.94 100 0.98 25 6.18 157 14.13 359 12.80 325 9.33 237 7.52 191 8 3/4 19

  • C. RISING HANDWHEEL (6" TO 10”)

    PART LIST

    PART NO. DESCRIPTION MATERIAL OF CONSTRUCTION
    1 Body* ASTM A 216 GR. WCB
    2 Bonnet* ASTM A 216 GR. WCB
    3 Spindle** SS 304
    4 Compressor* ASTM A 216 GR. WCB
    5 Diaphragm TFM
    6 Diaphragm Backing Pad EPDM
    7 Hand Wheel ASTM A 216 GR. WCB
    8 Body Bolts ASTM A 193 GR. B7
    9 Nuts ASTM A 194 GR. 2H
    10 Adaptation Bolts SS 304
    11 Bonnet Sleeve GUNMETAL
    12 Grease Cup POLYPROPYLENE
    13 Hand Wheel Bolt+Nut SS 304
    14 Grub Screw for Grease Cup MS
    15 Grub Screw for Bonnet Sleeve MS
    16 Spring Washers for Body Bolts HT STEEL
    17 Spindle Washer SS 304
    18 Handwheel Extension Rod MS / SS 304 / SS 316
    19 Lining Material*** PFA

    DIMENSIONS

    Size L ±0.11 IN. ØD ±0.04 IN. Ød ±0.04 IN. T +0.11/-0.00 IN. ØD1 ±0.04 Size IN. H ±0.19 IN. ØI ±0.20 IN. ØK ±0.062 IN. n Ø
    OPEN CLOSE
    INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM INCH MM
    6" 150 16.22 412 11.02 280 5.91 150 1.06 27 8.50 216 18.11 460 15.35 390 22.05 560 9.49 241 8 6/7 22
    8" 200 20.75 527 13.50 343 7.87 200 1.18 30 10.63 270 26.50 673 22.36 568 28.54 725 11.73 298 8 6/7 22
    10" 250 25.28 642 15.98 406 9.84 250 1.30 33 12.76 324 29.41 747 25.16 639 28.54 725 14.25 362 12 1 25

  • D. VALVE Cv & TORQUE VALUES

    SIZE CLOSING HAND WHEEL TORQUE IN Nm CLOSING HAND WHEEL TORQUE IN in lb Cv
    RISING SPINDLE RISING HAND WHEEL RISING SPINDLE RISING HAND WHEEL
    0.5” 12 12 106 106 4.50
    0.75” 15 15 133 133 6.50
    1" - 15 - 133 11.50
    1.5” - 25 - 221 33.00
    2" - 30 - 266 60.00
    2.5" - 40 - 354 85.00
    3" - 45 - 398 150.00
    4" - 55 - 487 270.00
    6" - 175 - 1549 500.00
    8" - 210 - 1859 1275.00
    10" - 405 - 3585 -

  • E. PRESSURE - TEMPERATURE GRAPH

  • F. LINED DIAPHRAGM VALVE DE-CODE