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Lug Type Stainless Steel Butterfly Valve Manual Gear Operated Friction Free Sealing

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Lug Type Stainless Steel Butterfly Valve Manual Gear Operated Friction Free Sealing

China Lug Type Stainless Steel Butterfly Valve Manual Gear Operated Friction Free Sealing supplier
Lug Type Stainless Steel Butterfly Valve Manual Gear Operated Friction Free Sealing supplier Lug Type Stainless Steel Butterfly Valve Manual Gear Operated Friction Free Sealing supplier

Large Image :  Lug Type Stainless Steel Butterfly Valve Manual Gear Operated Friction Free Sealing

Product Details:

Place of Origin: China
Brand Name: Tengs Valve
Certification: ISO, CE
Model Number: LTD73H

Payment & Shipping Terms:

Minimum Order Quantity: 1 Pc
Price: Negotiable
Packaging Details: SUITABLE FOR MARINE TRANSPORT
Delivery Time: 30 Days
Payment Terms: L/C, T/T
Supply Ability: 300 Pcs
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Detailed Product Description
Body Material: Cast Stainless Steel A351 CF8M Trim: SS316, F51, F53
Size: 2in - 60in Pressure Rating: Class 150LB - 300LB - 600LB
Actuator: Manual, Gear Operated Connection Ends: Lug Type
Seat: Metal Seated, Hard Seal Other: OEM Available

Stainless Steel CF8M Lug Metal Seated High Performance Butterfly Valve 316SS BFV

 

Description

Lug-style valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.

 

Quick Details

1. Valve Type: Stainless Steel Lug Metal Seated Butterfly Valve

2. Standard: API609

3. Pressure rating: Class 150LB -300LB - 600LB

4. Size: 2” - 60"

5. Body materials: Stainless Steel A351 CF8M

6. Disc: Stainless Steel ( A351 CF8M)

7. Stem material: Stainless Steel F316, 17 -4PH

8. Actuator: Manual, Worm gear

9. Body Design: High Performance, Triple Offset, Three- Eccentric

 

Features

1. The Seal Principle of Metal Seated Butterfly Valve Triple Offset

The Triple Offset Butterfly Valve provides a bi-directional bubble tight shut-off.This geometry ensures that the disc seal contacts the body seat only at the final shut-off position without rubbing or galling, providing a torque generated resilient seal with sufficient “wedging” to ensure auniform seal contact.

 

Triple Offset Butterfly Valve Geometry

2. The Triple Offset Geometry
OFFSET 1 The shaft is offset behind the seat axis to allow complete sealing contact around the entire seat

OFFSET2 The shaft centerline is offset from the pipe and valve which provides interference free opening and closing of the valve

0FFSET3 The seat cone axis is offset from the shaft centerline to eliminate friction during closing and opening and to achieve uniform compressive sealing around the entire seat.

 

3. Friction Free Sealing for Long Cycle Life
(1) Seat is Cr13 Metal alloy or hardfaced with Stellite as standard.

(2) The gasket is spiral wound SS/Graphite for zero leakage.

(3) Seat ring forces are generated by the torque during closing uniformly around the entire circumference. The resilient seal fleses and energizes, assuming the shape of the seat. The compression forces equally distributed around the perimeter provide a tight bi-directional shut off.
The resiliency of the seal allows the valve body and disc to contract or expand, without the risk of jamming due to temperature fluctuations. It is self-adjusting.

 

Standards

Design and Manufacture; API 609. MSS SP-67, MSS SP-68
Inspection and Test: API S98

End flange dimension: ASME B16 5 (NPS≤24). ASME B16 47 B series
BW end dimension: ASME B16.25

Face to face and end to end; API 609

Pressure-temperature ratings: ASMF B16.34

 

Description

 

Triple Offset Butterfly Valve Drawing

 

1. Materials List (Lug Type Triple Offset Butterfly Valve)

 

No. Part Name Materials
1 Body ASTM A351 CF8 ASTM A351 CF3 ASTM A351 CF8M ASTM A351 CF3M
2 Pin ASTM A276 304 ASTM A276 304L ASTM A276 316 ASTM A276 316L
3 Stem 304 304L 316 316L
4 Disc A351 CF8 A351 CF3 A351 CF8M A351 CF3M
5 Seal Ring 304+Grapnite / PTFE 304L+Graphite / PTFE 316+Graphite / PTFE 316L +Graphite / PTFE
6 Retainer Flange F304 A182 F304L A182 F316 A182 F316L
7 Bolt B8 B8 B8M B8M
8 Bolt B8 B8 B8M B8M
9 Cover A182 F304 A182 F304L A182 F316 A182 F316L
10 Gasket Graphite Graphite Graphite Graphite
11 Bushing 304 Nitriding 304L Nitriding 316 Nitriding 316L Nitriding
12 Bushing
13 Packing Seat 304 304L 316 316L
14 Packing Graphite
16 Packing Cover CF8 CF3 CF8M CF3M
17 Nut A194 8 A194 8 A194 8M A194 8M
18 Bolt A193 B8 A193 B8 A193 B8M A193 B8M
19 Yoke WCB Galvanization, CF8
Drive Actuator Manual, Worm gear

 

2. Main Connection Dimensions or Lug Type Butterfly Valve

Lug Type Stainless Steel Butterfly Valve Manual Gear Operated Friction Free Sealing

Class Size   Class Size  
NPS DN L NPS DN L
150Lb 2 50 43 300Lb 2 50 43
21/2 65 46 21/2 65 46
3 80 48 3 80 48
4 100 54 4 100 54
5 125 56 6 150 59
6 150 57 8 200 73
8 200 64 10 250 83
10 250 71 12 300 92
12 300 81 14 350 117
14 350 92 16 400 133
16 400 102 18 450 149
18 450 114 20 500 159
20 500 127 24 600 181
24 600 154 600Lb 2 50 43
26 650 154 21/2 65 46
28 700 165 3 80 54
30 750 165 4 100 64
32 800 190 6 150 78
36 900 200/203 8 200 102
38 950 200/203 10 250 117
40 1000 216 12 300 140
42 1050 216/251 14 350 155
44 1100 216/251 16 400 178
48 1200 254/276 18 450 200
52 1300 254 20 500 216
56 1400 279 24 600 232
60 1500 279        

 

Application

Metal Seated (Hard Seal) Butterfly Valve triple offset series are used in such fields as metallurgy, light industry, electric power, petrochemistry, coal gas channel etc.

Contact Details
Tengs Valve International Limited

Contact Person: Biff Teng

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