FPV

High-Pressure Slurry Knife Gate Valve

The High-Pressure Slurry Knife Gate valve is a true bi-directional slurry knife gate valve. Its rubber sleeves are designed to seal and withstand the harsh abrasive duty inherent in mining & milling facilities. Isolation is provided by the gate passing through the sleeve in such a manner that any solids that could potentially clog or jam the blade are pushed out to atmosphere through the bottom of the valve housing.

Product features

Specifications

Size range:	3″ – 36″ (80mm – 900mm)
Valve type:	Slurry knife gate (high pressure)
Body style	Full flanged
Temperature range:	176°F (80°C)
Pressure rating:	Up to 740 psi (51 bar)
Body material:	Cast ductile iron, 2 coat epoxy painted
Gate material:	17-4PH Stainless Steel, 316L Stainless Steel, 2205 Duplex Stainless Steel, 2507 Duplex Stainless Steel, C276 HASTELLOY
Gate/blade:	Coated with fluoro-carbon coating
Sleeve Material:	Gum rubber, high-temp EPDM, Neoprene, Nitrile, Chlorobutyl
Duty:	Medium to heavy abrasive applications
Hydro-static test:	1.5 Times the rated pressure

Features

100% bubble tight shut off.
Bi-directional operation at 51 bar.
CNC machined gate guide & body.
Double seat design for heavy-duty slurry service.
Fluorocarbon-coated gate to reduce.
Flush ports in the valve body.
friction and increase wear life on sleeves.
Full port & Bi-directional.
Heavy-duty stainless steel gate.
Imperial and Metric flanged patterns.
Low maintenance requirements.
Lubrication ports.
Manual lockout.
Protective spindle cover & bellows.
Stuffing box with gland follower.
The open body allows for purging.
Two coat Epoxy paint.
Two-piece body.
Universal tower frame.
Zinc nickel-plated hardware.

Advantages of Rubber sleeves

Designed specifically for heavy-duty slurry applications, the sleeves are easily replaced in the field, prolonging valve working life. Sleeves provide a 100% bubble-tight seal and rely on the pressure between the sleeves to seal. The sleeves are bi-directional and have an internal stiffening ring.

Applications

The valve is suited for mining and mineral processing, power generation, sand/gravel, chemical & soda ash, pulp & paper, environmental & effluent, dry feeds, coal, alumina, phosphate & general industry.

Actuators

All types of actuators can be fitted; electric, gearbox, hydraulic, pneumatic and handwheel. (Choice of an operator is based on valve size & pressure.)

Accessories

Deflector cone
Gate safety guards
Limit switches
PTFE blade coating
Various blade materials

Dimensions and Weights

Dimensions and weights are for guidance only – detailed dimension drawings are available on request.
All dimensions are in millimetres, unless otherwise stated.

Valve Size	A	B	C	D	E	F	G	H	J	K	M	N	P	R	MH kg	BG kg	AC kg	HC kg
80	266	175	133	520	579	408	595	61	71	268	176	422	300	300	22	57	38	22
100	298	176	152	692	718	663	768	85	98	320	232	449	300	300	29	64	59	31
150	362	184	184	853	928	772	928	146	148	374	262	476	500	500	44	79	81	44
200	425	184	215	1004	1033	994	1099	186	199	444	340	606	500	500	61	96	95	61
250	510	226	254	1207	1207	1197	1289	231	248	432	431	650	500	500	89	124	140	79
300	571	258	279	1360	1360	1300	1417	273	292	431	431	650	500	500	100	193	303	163
350	749	259	352	1544	1544	1519	1468	317	337	431	431	650	600	600	180	203	326	187
400	825	278	393	1690	1690	1643	1627	362	374	482	479	675	600	600	200	259	510	249
450	882	321	419	1797	1797	1733	1924	381	431	431	431	650	700	700	350	396	603	430
500	946	366	450	2036	2036	1993	2111	420	469	584	534	780	700	700	400	478	762	544
600	1130	369	546	2269	2269	2269	2336	538	576	558	481	713	–	–	850	990	997	635
750	1358	413	660	–	–	–	2860	679	736	533	509	–	–	–	–	–	–	850
900	1524	471	762	–	–	–	3327	809	889	635	479	–	–	–	–	–	–	1000

FPV