Page 80 - GRINNELL Mechanical Grooved Piping Products EMEA

Grooved Couplings
Valves and Accessories
Model CV-1 Grooved End Check Valves
(Page 1 of 2)
Tech Data Sheet: G352
The GRINNELL Model CV-1 Grooved End Swing Check Valves are compact and rugged swing-type units that allow water flow in one direction and prevent flow in the opposite direction. They are manufactured with a ductile iron body and a nickel-plated seat.
• Sizes 50 to 200mm (2" to 8") have a stainless steel clapper assembly.
• Sizes 250 to 300mm (10" to 12") have a ductile iron clapper assembly.
A resilient elastomer seal facing on the spring-loaded clapper ensures a leaktight seal and a non-sticking operation.
The Model CV-1 Check Valves are designed to minimise water hammer caused by flow reversal. The Model CV-1 Check Valve is furnished with grooved ends and can be installed using GRINNELL Grooved Couplings or Flanged Adapters. The Model CV-1 Check Valves have been designed with a removable cover for ease of field maintenance. These valves can be installed horizontally (with cover in the upward position) or vertically with the flow in the upward direction.
Specifications
Valve Assembly Finish
• Red, non-lead paint Max Working Pressure
• 0.7 Bar (300 psi) Clapper
•
50 - 200mm (2" - 8") - Stainless Steel, 250mm (10") - Ductile iro
OUTLET COVER
INLET
VERTICAL ORIENTATION
1 Body
2 Cap
3 Gasket
4 Hex Cap Screw
5 Clapper
6 Seal Facing
7 Spring
8 Hinge Shaft
9 Retaining Ring
10 Washer
11 Retention Bolt
12 Seal Ring
13 Retaining Disc
14 Locknut
15 Plug-1⁄2"-14 NPT
16 Adhesive
17 Nameplate
18 Rivet
19 Spacer
FLOW
INLET
COVER
OUTLET
FLOW
4,16
2
3
18 17
HORIZONTAL ORIENTATION
Ductile Iron 1
Ductile Iron 1
Synthetic Fibre 1
Steel, Zinc Plated AR
Stainless Steel or Ductile Iron 1
EPDM Grade “E” 1
Stainless Steel 1
Stainless Steel 1
Stainless Steel AR
Teflon 2
Stainless Steel 1
Neoprene 1
Stainless Steel 1
Stainless Steel 1
Cast Iron 2
Thread Sealer AR
Aluminium 1
Steel 2
Stainless Steel 1
Valve Material Specifications
Item No.
Description
Material
Qty.
SEE VIEW A
SEE DETAIL B
1 15
88 95
2 DN65-DN200 7 9 2 DN250 7 5
(2-1/2" - 8") VIEW A
5 13 11 14,16
(10") 13
12 6
11,16 19
6
5 DETAIL B
DN65-DN200 (2-1/2" - 8")
DN250 (10")
80