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
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  • Minimum flow resistance - Low pressure drop
  • Horizontal or vertical installation
  • All sizes rated for full vacuum service
  • Minimum back pressure to seat disc tightly
  • Top access cover facilitates maintenance without body removal from pipeline
  • All thermoplastic body
  • All PVC parts made of high impact PVC
  • PVC and PP valves come with EPDM seals (part numbers 5j, 5k, 6 and 7) as standard
  • PVDF valves, part numbers 5j and 7 of PTFE and 8 of PTFE PFA
  • 3/4" PP valves supplied with Ring 1a
Unit of Measure

Specifications

Standard

 N/A ANSI

Size

 N/A 3/4in (20mm)

Body Material

 N/A HI-PVC, PP, PVDF

Seat Material

 N/A EPDM, PTFE, FKM

Class

 N/A 150

Operating Temperature [Min]

 N/A -5 ºF

Operating Temperature [Max]

 N/A 210 ºF

Cracking Pressure

 N/A 5.0 psi

Operating Pressure [Min]

 N/A 70 psi

Operating Pressure [Max]

 N/A 150 psi

Cv Coefficient

 N/A 14

End Type

 N/A Flange

End Size

 N/A 3/4

Second End Type

 N/A Flange

Second End Size

 N/A 3/4

Weight

 N/A 2.20 lb

Dimensions

Length (L)

 N/A 5.51 in

Height (H)

 N/A 3.43 in

d

 N/A 0.79 in

D

 N/A 3.88 in

C

 N/A 2.75 in

t

 N/A 0.59 in

h

 N/A 0.62 in

A

 N/A 4 in

n

 N/A 4

D1

 N/A 3.39 in

Sample Specification

N/A All swing check valves shall be of solid thermoplastic construction, having no metal that comes in contact with media, (except when lever & weight or stainless steel spring option is installed). Valves shall incorporate a single disc design suitable for either horizontal or vertical installations. Valves shall be of top entry bonnet design for maintenance purposes with O-ring top bonnet seal. PVC shall conform to ASTM D1784 Cell Classification 12454A, PP conforming to ASTM D4101 Cell Classification PP0210B67272 and PVDF conforming to ASTM D3222 Cell Classification Type II. Valves shall be rated to 150psi sizes 3/4” through 3”, 100psi sizes 4” through 6”, and 70psi size 8” at 70º F, as manufactured by Asahi/America, Inc.

Troubleshooting

N/A What if valve leaks through the seat?
1. Sediment build-up around disc and seat. Clean disc and seat.
2. Disc or seat broken or damaged. Replace disc or seat.
3. Insufficient back pressure. Check the pressure.

What if valve leaks between bonnet and body?
1. Bolts not tightened properly. Tighten firmly per specified torque.
2. Seal chemically attacked or worn. Replace seal.
3. Exceeds maximum allowable pressure rating