消防（防火） • 双阀瓣 • 槽状结构 • 
青铜阀瓣 • Buna-N阀座 • 弹簧驱动
Fire Protection • Twin Disc • Grooved Style • 
Bronze Disc • Buna-N Seat • Spring Actuated 
250 PSI / 17.2 Bar非冲击性冷水工作压力
最高温度为121°C @ 220 PSI/15 Bar 
250 PSI/17.2 Bar Non-Shock Cold Working Pressure
Maximum Temperature to 250°F/121°C @ 220 PSI/15 Bar
符合ANSI/AWWA C606标准，适用于钢管
UL / ULC认证 • FMRC认证
CONFORMS TO ANSI/AWWA C606 FOR STEEL IPS PIPE
UL/ULC LISTED • FMRC APPROVED

	部件 PART	规格说明 SPECIFICATION
1.	阀体 Body	球墨铸铁ASTM A536，等级65-45-12 带模铸在阀体上的Buna-N弹性阀座 Ductile Iron ASTM A536 Grade 65-45-12 w/Buna-N resilient seat molded to body
2.	阀瓣 Disc	青铜ASTM B584合金C83600 Bronze ASTM B584 Alloy C83600
3.	扭簧 Torsion Spring	不锈钢T316 ASTM A313 Stainless Steel T316 ASTM A313
4.	阀瓣铰销 Disc Hinge Pin	不锈钢T316 ASTM A276 Stainless Steel T316 ASTM A276
5.	阀瓣止动销 Disc Stop Pin	不锈钢T316 ASTM A276 Stainless Steel T316 ASTM A276
6.	阀瓣止推轴承 Disc Thrust Bearing	不锈钢T316 ASTM A240 Stainless Steel T316 ASTM A240
7.	铰销挡圈 Hinge Pin Retainer	钢 Steel
8.	止动销挡圈 Stop Pin Retainer	钢 Steel
9.	稳定球 Stabilization Sphere	Buna-N
10.	隔环 Spacer	高密度聚乙烯 High Density Polyethylene
	部件 PART	规格说明 SPECIFICATION
1.	阀体 Body	球墨铸铁ASTM A536，等级65-45-12 带模铸在阀体上的Buna-N弹性阀座 Ductile Iron ASTM A536 Grade 65-45-12 w/Buna-N resilient seat molded to body
2.	阀瓣 Disc	青铜ASTM B584合金C83600 Bronze ASTM B584 Alloy C83600
3.	扭簧 Torsion Spring	不锈钢T316 ASTM A313 Stainless Steel T316 ASTM A313
4.	阀瓣铰销 Disc Hinge Pin	不锈钢T316 ASTM A276 Stainless Steel T316 ASTM A276
5.	阀瓣止动销 Disc Stop Pin	不锈钢T316 ASTM A276 Stainless Steel T316 ASTM A276
6.	阀瓣止推轴承 Disc Thrust Bearing	不锈钢T316 ASTM A240 Stainless Steel T316 ASTM A240
7.	铰销挡圈 Hinge Pin Retainer	钢 Steel
8.	止动销挡圈 Stop Pin Retainer	钢 Steel
9.	稳定球 Stabilization Sphere	Buna-N
10.	隔环 Spacer	高密度聚乙烯 High Density Polyethylene