Val-Matic 14 and Larger Wafer and Lug Style Dual Disc Check Valve - Manual (Page 4)

VALVE CONSTRUCTION (14”- 30”)
The standard check valve body (1) is constructed of
cast iron. See the specific Materials List submitted
for the order if other than standard iron construction.
The internal metal components are bronze or
stainless steel. The discs (2) and torsion spring (3)
are the only moving parts and require no
maintenance or lubrication. The general details of
construction are illustrated in Figure 2.
The body (1) is either compact wafer style to fit
between two pipe flanges or lug style for bolting to
two pipe flanges. The resilient seat is bonded to the
body and is not adjustable or replaceable in the field.
3
ITEM DESCRIPTION MATERIAL
1 Body Cast Iron
2 Disc Bronze
3 Spring* Stainless Steel
(qty. 2 springs on 18” and larger)
4 Hinge Pin Stainless Steel
4B Shaft Collar Stainless Steel
(Item 4B on 36” and larger sizes)
5 Stop Pin Stainless Steel
6 Bearing* Stainless Steel
7 Hinge Pin Ret.* Steel
8 Stop Pin Ret.* Steel
9 Stab. Sphere* Buna-N
*Recommended Spare Part
FIGURE 2. DUAL DISC
®
CHECK VALVE
WARNING: Removal of mating flanges
without draining the pipeline may
cause injury or damage to the
valve.
TABLE 2. CHECK VALVE PARTS LIST