Asahi/America
Asahi/America
655 Andover, St.
Lawrence, MA 01843
Phone: 1-800-343-3618 or 781-321-5409
Fax: 978-685-3010 or 800-787-6861
Email: Asahi@asahi-america.com
Print Back
2" PVDF/Teflon Flanged T-14 Diaphragm Valve
Unit of Measure

Specifications

Standard

 N/A DIN

Size

 N/A 50mm (2in)

Material

 N/A PVDF

Bonnet Material

 N/A PPG

Cv Coefficient

 N/A 43

End Type

 N/A Flanged

Elastomer

 N/A Teflon

Valve Operator

 N/A Handwheel

End Size

 N/A 50

Second End Type

 N/A Flanged

Second End Size

 N/A 50

Weight

 N/A 8.00 lb0.91 kg

Dimensions

Length (L)

 N/A 230 mm

Height (H)

 N/A 7.52 in191 mm

H1

 N/A 158 mm

D2

 N/A 156 mm

d

 N/A 52 mm

D1

 N/A 123 mm

H2

 N/A 36 mm

s

 N/A 45 mm

S1

 N/A 9 mm

t

 N/A 22 mm

C

 N/A 125 mm

D

 N/A 165 mm

h

 N/A 18 mm

n

 N/A 4

Options

N/A

  • 2" square nut
  • Stem extensions (single and two-piece design)
  • Locking device for tamper proofing
  • Manual limit switches for remote position (2- 1/2" or larger) indication by lights or for sequencing of other equipment
  • Pneumatic (all sizes) or electric (to 4") actuation

Troubleshooting

N/A What if fluid leaks when valve is fully closed?
1. Travel stop not set correctly. Adjust it per the Asahi Operation and Maintenance manual.
2. Solids build up inside valve. Clean inside, including weir and diaphragm.
3. Diaphragm and/or weir are worn or damaged. Change the part(s).
What if valve cannot be fully opened?
1. Diaphragm is not properly engaged with compressor. Check engagement per Operation and Maintenance manual.
What if fluid leaks to atmosphere?
1. Bonnet bolts not properly torqued. Re-torque according to Operation and Maintenance manual.
2. Line pressure exceeds maximum recommended line pressure. Check or reduce system line pressure.
3. Diaphragm has ruptured or has been chemically attacked. Replace diaphragm.

Sample Specification

N/A All Type-14 true union diaphragm valves shall be of solid thermoplastic construction for body and bonnet with socket, threaded or butt end connectors. The valves shall come standard with a position indicator, travel stop and bonnet O-ring sealing arrangement. The valve shall be weir type with a square bonnet body sealing design and bayonet connection diaphragm. All PTFE diaphragms shall be supplied with a PVDF gas barrier between the layers of EPDM and PTFE for aggressive chemical service. PVC conforming to ASTM D1784 Cell Classification 12454A, CPVC conforming to ASTM D1784 Cell Classification 23567A, PP conforming to ASTM D4101 Cell Classification PP0210B67272, PPG (bonnet only) conforming to ASTM D4101 Cell Classification PP0110M20A21130, and PVDF conforming to ASTM D3222 Cell Classification Type II. PVC, CPVC, PP and PVDF shall be rated to 150psi for elastomeric and PTFE diaphragms at 70ยบ F, as manufactured by Asahi/America, Inc.

Notes

N/A Working temperature is different from flanged version.