Tengs Valve International Limited
Tengs Valve International Limited Cast Steel, Forged Steel, Industrial Valves And Strainers
Add to Cart
Forged Steel SS316 Weld End Gate Valves Rising Stem Ansi 800LB API602 BW / Butt Weld
Quick Details:
1. Product: Forged Steel SS316 Weld End Gate Valve 800LB
2. Constructions: OS&Y, Bolted Bonnet, Welded Bonnet
3. Bore type: Full Bore, Reduced Bore
4. Size Range: 1/2" to 2".
5. Pressure Ratings: ANSI Class 800LB / 800#
6. End Connections: BW, Butt Weld
7. Materials Available in: SS316, A182 F316, SUS316
8. Various trim materials are available to suit different service conditions
9. Special: NACE MR 0175
Featuers
1. Bonnet Gasket Style
Stainless steel + flexible graphite combined gasket
Ring joint gasket
Pressure seal Design
2. Packing Seal
As usual, flexible graphite is used for packing material. PTFE or combined packing material can be also used if being requested by the customer.
3. Body and Bonnet Connection
Bolted Bonnet
Welded Bonnet
Pressure Seal Bonnet.
4. Operation
Hand wheel, Bare Stem, Electric actuator
5. Disc Design
NPS<2 Gate valves are solid wedge gate.
6. Backseat Design
All gate valves have backseat design.
7. Stem Design
The stem is integral forged design. The minimum diameter of the stem shall be as per the standard requirement.
8. Seat
For carbon steel gate valve, the seat is usually forged steel. The seat sealing surface is overlaying welded with hard alloy specified by the customer. For Stainless steel gate valve, the seat is integral with body, or it can be machined directly after hard alloy welded.
Standards
Design and manufacture: API 602, BS5352, ASME B 16.34
End connection Standards:
1) Socket-weld dimension: ANSI B16.11
2) Screw thread dimension: ANSI B1.20.1
3) Butt-welding dimension: ANSI B16.25
4) Flange end dimension: ANSI B16.5
Valve inspection and test: API598
Material according to ANSI/ASTM
Description
1. Parts and Material List
| NO. | Part name | F316(L)/316(L) | F51/F51 |
| 1 | Body | F316(L) | F51 |
| 2 | Seat | 316(L) | F51 |
| 3 | Wedge | F316(L) | F51 |
| 4 | Stem | 316{L) | F51 |
| 5 | Gasket | 316+ Flexible graphite | |
| 6 | Bonnet | F316(L) | F51 |
| 7 | Bolt | B8(M) | B8(M) |
| 8 | Pin | 304 | 304 |
| g | Gland | 316 | F51 |
| 10 | Gland eyebolt | B8(M) | B8(M) |
| 11 | Gland flange | F304 | F304 |
| 12 | Hex nut | 8(M) | 8(M) |
| 13 | Stem nut | 410 | 410 |
| 14 | Locking nut | 35 | 35 |
| 15 | Namoplate | AL | AL |
| 16 | Hand wheel | A197 | A197 |
| 17 | Lubricating gasket | 410 | 410 |
| 18 | Packing | Graphite | Graphite |
2. Main Connection Dimensions for Class 800LB Weld Ends
| Specification | R.P | - | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 21/2 |
| (NPS) | F.P | 1/4 | 3/8 | 1/2 | 3/4 | I | 1 1/4 | 1 1/2 | 2 |
| Face to face (mm) | L | 79 | 79 | 92 | 111 | 120 | 120 | 140 | 178 |
| Handwheel diameter (mm} | w | 100 | 100 | 100 | 125 | 160 | 160 | 180 | 200 |
| Heihgt (mm) | H | 161 | 161 | 163 | 196 | 223 | 251 | 290 | 333 |
| Flow port dimension (mm) | d | 8 | 10.5 | 13.5 | 18 | 24 | 29 | 36.5 | 45 |
| Weight (Kg) | 2.3 | 2.22 | 2.39 | 4.24 | 5.7 | 7.05 | 10.9 | 16.8 | |