• Durable nylon disc & shaft
• Appropriate force stainless steel spring
• Minimum pressure of 0.3 bar

Size	D	H	Packing
1/2"	34	47	140(14)
3/4"	42	53	80(8)
1"	47.5	59	80(10)
1-1/4"	59	63.5	48(6)
1-1/2"	69	70	30(5)
2"	86	75	24(4)
2-1/2"	97	93	8(2)
3"	115	99	8(2)
4"	145	118	4(2)