Dual Disc type Check Valve
Single Spring Type | Bill Of Material | Product Range

Wafer Check Valves are compact, light weight check valves whose simple design and construction assure years of reliable service with a minimum of problems available in a range of materials and with a choice of spring torque to suit different fluid and service conditions. (Design : API 594)

Features & Advantages
Compact Wafer Design
Extremely light weight and economical compared with traditional flanged type, check valves.
Prevention of Water Hammer
The sensitive spring incorporated in the valve closes the valve plate before reverse flow occurs preventing water hammer and giving complete pipeline protection even in high head installations.
Complete Freedom of Installation
Space saving design simplifies installation. Furthermore, Wafer Check Valves can be installed in any position and at any angle allowing rationalized piping layout.
Long Service Life
Wafer Check Valves incorporate Teflon spring bearings to minimize spring wear and assure long service life.
Smooth Operation
Teflon bearings minimize friction for smooth valve plate operation.

Single Spring Type   [top]

Bill Of Material   [top]

DESCRIPTION JIS ASTM
1 BODY SCPH 2 SCS 13 SCS 14 A216-WCB A351-CF8 A351-CF8M
2 PLATE DISC SCS 13 SCS 14 A351-CF8 A351-CF8M
3 SPRING SUS304-WPB SUS316-WPA A276-304 A276-316
5 HINGE PIN SUS 304 SUS 316 A276-304 A276-316
6 STOP PIN SUS 304 SUS 316 A276-304 A276-316
7 PIN RETAINER S25C SUS 304 SUS 316 AISI-1025 A276-304 A276-316
8 B-LUG BEARING PTFE PTFE
9 P-LUG BEARING PTFE PTFE
10 S-LUG BEARING PTFE PTFE
12 CENTER BEARING PTFE PTFE
13 EYE BOLT (OVER 125A) S20C AISI-1020

Product Range   [top]

MATERIAL Bronze, Cast Iron, Ductile Iron
A216 WCB
A217 WC1, WC6, WC9
A351 CF38, CF3M, CF8, CF8M
etc.
CLASS ANSI 150#, 300#, 600#
JIS 10K, JIS 20K, JIS 40K
SIZE 2' ~ 24'
SEATS NBR, VITON, SILICON, etc