FIGURE 53

DUCTILE IRON KNIFE GATE VALVE

 
- HEAVY DUTY cast ductile iron body and
   yoke for the most rugged service.  
- Through bolting on side flange bolts to allow
  easy installation.
- Replaceable natural rubber seat provides a 
  BI-DIRECTIONAL BUBBLE TIGHT 
  SEAL across gate from 0 to 150 PSI.
- Rubber seat is flush with the bottom of the port
  ELIMINATING any pockets in the bottom of 
  the Valve to collect material in media such as
  slurries, pellets or powders.
- Rubber seat has a molded-in steel reinforce-
  ment and is bolted in place to prevent it from
  being shifted out of position by gate movement.
- Rubber seat replacement is quick and easy.
- Machined stainless steel gate for corrosion
  resistance and durability.
- Stainless steel stem for corrosion resistance.
- Easy conversion from handwheel operator to 
  cylinder, bevel gear or electric motor operator
  using cast yoke.
- Enclosed brass stem bushing provides reduced
  operating torque and protection of the stem 
  bushing from harsh environments.
- Full packing seal around gate to prevent
  packing leakage.
- MSS-SP-81 face to face dimension and flange
  dimensions.
- Full port ID. 
- Minimum 4 bolt packing gland to assure 
  proper gland alignment in all valve sizes.
- Exterior and interior of entire valve (inside and 
  outside) coated with an epoxy powder coating for
  corrosion resistance.

MATERIALS:

COMPONENT
MATERIAL (2"-16")
MATERIAL (18"-24")
BODY CAST DUCTILE IRON CARBON STEEL
GATE STAINLESS STEEL STAINLESS STEEL
PACKING GLAND CAST DUCTILE IRON CARBON STEEL
SEAT NATURAL RUBBER NEOPRENE
YOKE & RETAINER CAST DUCTILE IRON CARBON STEEL
STEM & CLEVIS STAINLESS STEEL STAINLESS STEEL
STEM BUSHING BRASS BRASS
BOLTING PLATED STEEL PLATED STEEL
PACKING TLSP TLSP

 

DIMENSIONS AND WEIGHTS:

VALVE SIZE
3"
4"
6"
8"
10"
12"
14"
16"
18"
20"
24"
ID
3"
4"
6"
8"
10"
12"
14"
15-1/4"
17-1/4"
19-1/4"
23-1/4"
F/F
2"
2"
2-1/4"
2-3/4"
2-3/4"
3"
3"
3-1/2"
3-1/2"
3-1/2"
3-7/8"
BC
6"
7-1/2"
9-1/2"
11-3/4"
14-1/4"
17"
18-3/4"
21-1/4"
22-3/4"
25"
29-1/2"
RF
5"
6-3/16"
8-1/2"
10-5/8"
12-3/4"
15"
16-1/4"
18-1/2"
FLAT FACE FLANGE
OD
7-1/2"
9"
11"
13-1/2"
16"
19"
21"
23-1/2"
25"
27-1/2"
32"
N
4
8
8
8
12
12
12
16
16
20
20
d
5/8"-11
5/8"-11
3/4"-10
3/4"-10
7/8"-9
7/8"-9
1"-8
1"-8
1-1/8"-7
1-1/8"-7
1-1/4"-7
H/W
8"
10"
12"
14"
16"
20"
24"
24"
24"
24"
24"
H-CLS
14-1/4"
16-1/4"
20-1/8"
24-1/4"
28-1/2"
34-1/2"
40"
40-3/8"
47-3/8"
51"
62-1/2"
H-OPN
17-1/2"
20-1/2"
26-1/2"
32-1/2"
38-3/4"
47"
54-1/4"
55-3/4"
64-1/2"
69"
82-3/4"
WEIGHT
29
46
75
118
180
295
345
455
545
800
1,050