High Performance
Butterfly Valves

(Series 750/751 & 850/851)

Sizes Available:

  • 2″, 2-1/2″, 3″, 4″, 5″, 6″, 8″, 10″, 12″

Description:

  • ANSI Class 150
  • Lug & Wafer Style
  • WCB or CF8M Body
  • Stainless Disc & Stem
  • 15% Glass RTFE Seats Standard
  • 100% Virgin PTFE, TFM 1600, Fire-Safe Seats Available
  • ISO 5211 Direct Mount
  • Double Offset “Arc Seal” Technology
  • Bubble Tight Bi-Directional Shutoff
  • Blow-out Proof Stem

Series Designations:

  • 750 – CL150 Carbon Steel Wafer Body Design
  • 751 – CL150 Carbon Steel Lug Body Design
  • 850 – CL150 Stainless Steel Wafer Body Design
  • 851 – CL150 Stainless Steel Lug Body Design

Cut Sheets:

Trim Designations:

  • 821 – CF8M Disc, 17-4 PH SS Stem, 15% Glass RTFE Seat
  • 822 – CF8M Disc, 316 SS Stem, 15% Glass RTFE Seat
  • 823 – CF8M Disc, 17-4 PH SS Stem, 100% Virgin PTFE Seat
  • 824 – CF8M Disc, 316 SS Stem, 100% Virgin PTFE Seat
  • 825 – CF8M Disc, 17-4 PH SS Stem, TFM 1600 Seat
  • 826 – CF8M Disc, 316 SS Stem, TFM 1600 Seat
  • 827 – CF8M Disc, 17-4 PH SS Stem, Fire-Safe Seat
  • 828 – CF8M Disc, 316 SS Stem, Fire-Safe Seat

Standards and Compliance:

  • ISO 5211 – Industrial Valves Part-Turn Actuator Attachments
  • ASME B16.5 – Steel Pipe Flanges and Flange Fittings
  • ASME B16.34 Stee Valves
  • MSS-SP-6 Finishes For Pipe Flanges
  • MSS-SP-25 Standard Markings For Valves
  • MSS-SP-68 High Pressure Butterfly Valves with Offset Design
  • API 607, API 609, API 598
  • ISO 10497 Fire Type Testing
  • CE PED 97/23/EC Pressure Equipment Directive

Exploded View

1
Insert Bolts (A193 GR.8)
2
Insert (CS) *or SS
3
Seat (RTFE/PTFE) *or other materials
4
Insert Ring (PTFE)
5
Body (A216 WCB) *or A351 CF8M
6
Lower Stem Bearing (CS)
7
Lower Retaining Ring (304 SS)
8
Disc (A351 CF8M)
9
Disc Lock Pins (17-4 PH)
10
Lower Retaining Ring (304 SS)
11
Upper Stem Bearing (CS)
12
Packing Ring (304 SS)
13
Packing (PTFE)
14
Upper Retaining Ring (304 SS)
15
Stem (17-4 PH)
16
Snap Ring (W1-8)
17
Gland Bolts (A193 GR.8)
18
Stopper Plate (304 SS)
19
Packing Gland (A351 CF8M)
20
Spring Washers (301 SS)
21
Gland Nuts (A 194 GR.8)