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Item # 1512-8-UT, 8" 150 Class Gate Valve


Cast carbon steel gate valves 150 pound pressure class with bolted, outside screws and yoke, FLEX-WEDGE and seal welded seat rings manufactures in accordance with API 600.

Application
These gate valves are used in pipelines and in facilities for water, steam, non-aggressive gases, naptha, naptha derivatives and in power and process installations. In operating conditions up to 800°F (427 °C), in accordance with Pressure-Temperature Rating Table. Data included in this table meets the pressure-temperature rating of ANSI B16.34

Technical Data
The basic dimensions of the gate valves are in accordance with attributes given below. Face to face dimensions of the gate valves are in accordance with ANSI B16.10. The pipe flanges are regularly furnished faced and drilled with 0.062" (1.5mm) raised faces, in accordance with ANSI B16.5. The raised face of the pipe flanges are machined in accordance with MSS SP-6.
The wedges are of single wedge flexible type providing greater sealing capabilities and lower torque requirements. Operation is performed by non-rising hand wheel; the closing direction is to the right. Upon request, gate valves are made with enclosed bevel gearing. For remote control, these valves can be equipped with electric and air motor operating units.
The wedges have accurate guide slots, assuring true alignment and providing full guidance during operations.
The seat rings are sealed welded in the body and are made of carbon steel with hard faced seal surfaces. The seat faces on the wedges are made by welding on 13 CR Stainless Steel.
The gate valves are provided with a backseat bushing in the bonnet, enabling replacement of the stem packing when the valve is in wide open position.




Specifications  · Port  · Line Flange  · Height  · Line Flange Bolts  · Parts and Materials  · Pressure-Temperature Rating  · Tests

Specifications

Valve Size
8 in

Face to Face (L)
11.50 in
292.1 mm

Face to Face (L1)
16.50 in
419.1 mm

Turns to Open
16.50

Handwheel Dia.
16.00 in
406.4 mm

Approx. Weight
354 lb
160.6 kg

Test Pressure
Hydrostatic (Seat) - 325 psig (21.7 bar-gage)
Hydrostatic (Shell) - 450 psig (31.0 bar-gage)
Pneumatic (Seat) - 80 psig (5.5 bar-gage)


Port

Dia. (N)
8.00 in
203.2 mm

Dia. (S)
8.00 in
203.2 mm


Line Flange

Dia. (D)
13.50 in
342.9 mm

Min. Thickness (B)
1.12 in
28.4 mm

Bolt Circle (K)
11.75 in
298.5 mm

Hole Dia. (d)
0.88 in
22.4 mm

Resed Face Dia. (g)
10.62 in
269.7 mm


Height

Open (H)
41.75 in
1060.5 mm

Closed (H)
33.45 in
849.6 mm

Stem Dim. (dv)
1 3/8 in
34.9 mm


Line Flange Bolts

No. of Bolts
6

Bolt Size
3/4 in
19.1 mm


Parts and Materials
Key Part Material Specification
1 Body ASTM A216 Gr. WCB
2 Seat Ring ASTM A108 Gr. 1018-1020 w/Cr-Co-W Facing
3 Wedge ASTM A216 Gr. WCB w/13 Cr Facing
4 Stem ASTM A582 Type 410
5 Backseat Bushing ASTM A276 Type 410
6 Gasket Soft Iron, Corrugated
7 Bonnet ASTM A216 Gr. WCB
8 Packing Asbestos - Free
9 Gland ASTM A216 Gr. WCB
10 Yoke Nut ASTM A439 Type D2
11 Yoke Nut Retain ing Nut ASTM A536 Gr. 65-4512
Yoke Cap 10" and larger ASTM A216 Gr. WCB
12 Handwheel ASTM A47 Gr. 32510
13 Handwheel Nut ASTM A47 Gr. 32510
14 Gland Eyebolt Steel, Mild Carbon
15 Gland Eyebolt Nut ASTM A307 Gr. B
16 Body-Bonnet Stud Bolt ASTM A193 Gr B7
17 Body Bonnet ASTM A194 Gr. 2H
Stud Bolt Nut




Pressure-Temperature Rating
Temperature Working pressure
(ºF) (ºC) (psi) (bar)
100 38 285 19.6
200 93 260 17.9
300 149 230 15.9
400 204 200 13.8
500 260 170 11.7
600 316 140 9.6
650 343 125 8.6
700 371 110 7.6
750 399 95 6.6
800 427 80 5.5
Asbestos free packing or flexible graphite as per request.
The gate valves are delivered protected against corrosion. The raised faces on the pipe flanges are protected against damage during shipment.
Cast on the gate valves bodies are the Lunkenheimer Trade Mark, nominal pressure class, nominal class and material designation, all in accordance with MSS SP-25.


Tests
The gate valves are hydrostatically and pneumatically tested in accordance with Test Pressure, meeting the requirements of API 598.

Note: Other flange facings and finishes in accordance with ANSI B16.25, unless otherwise specified.


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