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美国NIBCO尼必可GD-4865-4N沟槽式信号蝶阀简介
250 PSI/17.2 Bar Non-Shock Cold Water
DESIGNED TO COMPLY WITH MSS SP-67 • UL/ULC LISTED • FM APPROVED •
2" - 12" UL/FM LISTED FOR INDOOR AND OUTDOOR SERVICE • APPROVED BY NEW
YORK CITY MEA 90-07-E • CALIFORNIA STATE FIRE MARSHAL
LISTING NO. 7770-1243:104 • U.S. COAST GUARD "Category A"
(10" Shown)
250 PSI WWP UL/FM Butterfly Valves
Fire Protection Valve • Wafer or Lug Style Body • Molded in Seat • Accepts Internal
Supervisory Switches • Mates with C.I. Class 125/Steel Class 150 Flanges
**-8 version has two factory mounted internal supervisory switches. -4 version has no switches.
Note: Wafer body will mate with ANSI or ISO flanges. O.D. of wafer body notched to fit ISO bolt circle.
For dead-end service use lug style (rated 200 PSI for this service).
DIMENSIONS—WEIGHTS—Q
MATERIAL LIST
PART SPECIFICATION
1. Stem Stainless Steel ASTM 582 Type 416
2. Collar Bushing Brass ASTM B124
3. Upper Bushing Copper Alloy CDA 122
4. Stem Seal EPDM
5. Body Seal EPDM
6. Disc Ductile Iron ASTM 395 (Nickel Plated)
7. Liner EPDM
8. Lower Bushing Copper Alloy CDA 122
9. Nameplate Aluminum
10. Body Ductile Iron ASTM A536
11. Gear Operator Cast Iron and Steel
12. Indicator Flag Cast Iron
13. Handwheel Cast Iron
WD-3510-8**
Wafer
(4" Shown)
250 PSI/17.2 Bar Non-Shock Cold Water
DESIGNED TO COMPLY WITH MSS SP-67 • UL/ULC LISTED • FM APPROVED •
2" - 12" UL/FM LISTED FOR INDOOR AND OUTDOOR SERVICE • APPROVED BY NEW
YORK CITY MEA 90-07-E • CALIFORNIA STATE FIRE MARSHAL
LISTING NO. 7770-1243:104 • U.S. COAST GUARD "Category A"
(10" Shown)
250 PSI WWP UL/FM Butterfly Valves
Fire Protection Valve • Wafer or Lug Style Body • Molded in Seat • Accepts Internal
Supervisory Switches • Mates with C.I. Class 125/Steel Class 150 Flanges
**-8 version has two factory mounted internal supervisory switches. -4 version has no switches.
Note: Wafer body will mate with ANSI or ISO flanges. O.D. of wafer body notched to fit ISO bolt circle.
For dead-end service use lug style (rated 200 PSI for this service)
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