3-March-14
Nil-Cor, LLC
4855 Broadmoor Ave. Kentwood, MI 49512 (616) 554-3100
www.nilcor.com
Pub. 310
FLOW
Nil-Cor 300/310 HD-Series Double-Offset High
Performance Butterfly Valves The full-face wafer body
style offers a light-weight, economical installation with
full flange support in FRP piping systems which
eliminates the problem of piping flange breakage at
installation. The Lug style valves have molded-in 316
stainless steel lugs which will not rotate or pull out
during installation under high torque loading. Nil-Cor
300/310 HD-Series Butterfly Valves are available in 3” -
12" standard sizes.
The 310HD Series is ideal for on/off or modulating
control service. Fire-Resistant versions are available.
CAUTION: Refer to the Nil-Cor Corrosion Guide,
Catalog 1000, to verify suitability for chemical
applications. Contact factory for assistance for
chemicals not listed.
Nil-Cor HD Butterfly Valves
Installation, Maintenance and Operating Instructions
3”-12” Series 300HD, 310HD Full Face & Lug
Item
No.
Description
Material
1
Hand Lever
D.I./Epoxy Coated
1-A
Gear (Not Shown)
Aluminum/Painted
2
Hex Head Screws (2
Req’d)
18-8 Stainless Steel
3
Lock Washers
18-8 Stainless Steel
4
Hex Nut (2 Req’d)
18-8 Stainless Steel
5
Positioning Plate
18-8 Stainless Steel
6
Hex Head Screws (2
Req’d)
Hastelloy-C
7
Gland
Hastelloy-C
8
Packing
Virgin PTFE V-Ring
9
Shaft
17-4PH/GR-VE or Hast-C/GR-VE,
10
Valve Body
Glass or Graphite Reinforced Vinyl
Ester
11
Disc
Graphite Reinforced Vinyl Ester
12
Shaft Pin
Graphite-Reinforced Kynar
13
Seat Ring
Viton or PTFE;
14
Seat Retainer
Graphite Reinforced Vinyl Ester,
10” and 12”, no retainer used.