Fabri-Valve® XS150 High Performance Knife Gate Valve

High performance knife gate valve whose one-piece perimeter and chest seal is double-locked in the body, by shoulders in the seal groove and by a tab that also acts as the body joint seal, for bi-directional, bubble-tight shutoff. Sized 2" to 24" (DN 50 to 600) with an ANSI Class 150 pressure-temperature rating and a true full-port design whose gate guides sit outside the flow area. Shutoff is zero leakage in all sizes, which the sheet states exceeds ANSI/FCI 70-2 Class VI.

Size range

2" to 24" (DN 50 to 600)

Valve body pressure-temperature rating

ANSI Class 150, 2" to 24"; consult factory for higher-pressure designs

Cold working pressure

Stainless: 275 psi; carbon steel: 285 psi

Temperature rating

Viton® seat: −34 °C (−30 °F) to 177 °C (350 °F); Aflas® seat: −1 °C (−30 °F) to 204 °C (400 °F); EPDM seat: −46 °C (−50 °F) to 138 °C (280 °F); the seal temperature ratings determine the practical temperature limitations

Flange drilling

ANSI 125/150 drilling standard; contact factory for alternate flange drilling

Flanges

2", 3", 4": flat face; 6" to 24": raised face

Face to face

MSS-SP81 standard; MSS-SP-135 (short pattern) for 3" to 24"

Body

As specified by customer

Gate

As specified by customer

Gate seal / injectable packing seal

EPDM, Viton or Aflas

Gate scrapers

Phenolic

Gate guide (chest)

Glass filled TFE

Stem

304 SS

Non-rising stem nut

Acid resistant bronze

Yoke

S series: 304 SS; R series: carbon steel

Handwheel

Cast iron

Standard shell test

Hydro test at 1.5 times the 38 °C (100 °F) rating; zero allowable leakage

Standard resilient seat test

Hydro test at 1 bar (15 psi) and rated CWP; zero allowable leakage

Shutoff performance

Zero leakage, all sizes; bubble tight, exceeding ANSI/FCI 70-2 Class VI

Available options

Hardened gate material; hard chromed gate; nickel-TFE coated gate; epoxy coating; V-port; alternate flange drilling; bevel gear; chainwheels; cylinder actuators; electric actuators; ratchet; extended stems; rod boots; limit switches; positioner; solenoids; abrasion resistant wear ring

Features

True full-port, unrestricted straight-through flow for gas, liquids and fibrous slurries, with gate guides outside the flow area; injectable packing adjustable under line pressure without disassembly or removal from the pipeline; one-piece perimeter and chest seal for quick, easy maintenance with fewer components; bi-directional, bubble tight, repeatable shut-off; double-locked perimeter seal, retained by its shoulders and by the tab that doubles as body joint seal; shut-off unaffected by differential pressure, excellent even at very low pressures; chest seal wraps the entire gate and fully encloses the injectable packing; body protects the perimeter seal from direct process flow; large seal cross-section for longer service life; self-supporting yoke (2" to 12"); suitable for bi-directional dead-end service at full rating; robust full face flange; options to mate with ANSI and DIN flanges and custom bolt patterns; open and closed lock-out standard; non-rising stem (rising with bevel gear); dual scraper blades clean the gate and protect the seals; universal yoke converts between handwheel and cylinder; tapered body bore for automatic clean-out and flushing; minimised chest area and close tolerances prevent media packing; modified TFE bearing surfaces in the chest support the gate; dished handwheel keeps hands away from pinch points

数据以厂商公布为准。最终选型请在订购前对照当前数据表确认。