High-Pressure Needle Features Valves—Sno-Trik Weep holes for ...

1232 Medium- and High-Pressure

High-Pressure Needle Valves--Sno-Trik

For Pressures up to 45 000 psig (3100 bar)

Working pressures up to 45 000 psig (3100 bar)

Temperatures up to 450?F (232?C) with glass-filled PTFE packing; up to 850?F (454?C) with Grafoil packing.

316 stainless steel construction End connection styles and sizes:

Straight thread high-pressure female--9/16, 3/4, 1 1/8 in.

Medium-pressure--1/4, 3/8, 1/2 in. Female NPT--1/4 in. Manual and pneumatically actuated valves

Features

Weep holes for leak detection. Packing below stem threads. Nonrotating stem design. Straight thread high-pressure female or female NPT end connections. Available for sour gas applications. Materials are selected in accordance

with NACE MR0175/ISO15156.

Pressure-Temperature Ratings

410 series ratings are based on Grafoil packing. Ratings are limited to 450?F (232?C) with glass-filled PTFE packing.

445, 645, and 945 series ratings are based on glass-filled PTFE packing. Ratings with Grafoil packing are equal to 410 series ratings.

Series

Temperature, ?F (?C)

?65 (?53) to 100 (37) 200 (93) 300 (148) 400 (204) 450 (232)

500 (260) 550 (287) 600 (315) 650 (343)

700 (371) 750 (398) 800 (426) 850 (454)

410

445, 645, 945

Working Pressure, psig (bar)

15 000 (1034) 13 930 (960) 12 580 (867) 11 550 (796) 11 150 (769)

45 000 (3100) 41 800 (2880) 37 700 (2597) 34 600 (2383) 33 400 (2301)

7 165 (493)

6 970 (480) 6 770 (466)

--

6 660 (458)

6 480 (446)

6 335 (436) 6 230 (429)

--

6 085 (419)

Working pressure determined based on ASME B31.3 Process Piping, Chapter IX High Pressure Piping.

Top- or side-mounting panel holes

Glass-filled PTFE packing is standard; optional Grafoil packing is available. Design enables external adjustment without removing valve from line.

Threads are isolated from system fluid.

Inlet

Bonnet lock plate helps prevent accidental removal of bonnet.

Replaceable, nonrotating stem design: provides easy valve

maintenance helps prevent galling or Outlet damage to valve seat.

Easily replaceable seat in angle-pattern valve

MEDIUMAND HIGHPRESSURE

Materials of Construction

1 2

3

4

5 6

7 8 9

10 9

11

Flow Coefficient (Cv)

Medium- and High-Pressure Fittings, Tubing, Valves, and Accessories 1233

Flow Coefficient at Turns Open

410 and 445 series straight pattern 645 and 945 series straight pattern 410 and 445 series angle pattern 645 and 945 series angle pattern

Number of Turns Open

Operating Torque

Torque required for shutoff at maximum pressure rating is 50in.?lb (5.7 N?m) . Overtightening of valve will result in reduced seat life.

System Pressure, bar

Torque Required to Close Valve, N?m

Torque Required to Close Valve, in.?lb

12

Component 1 Handle (410) (445, 645, 945)

Material Grade/ ASTM Specification

Red anodized aluminum 2024-T4/B211

Black anodized aluminum 2024-T4/B211

2 Handle screw Cadmium-plated carbon steel

3 Bonnet nut

Phosphor bronze 544/B139

4 Stem shank

455 SS/A564

5 Lock screw

316 SS

6 Lock plate

316 SS/A240

7 Stem

440C SS/A276

8 Spacer

316 SS/A276

9 Gland

316 SS/A276

10 Packing

Glass-filled PTFE

11 Body

316 SS/A479

12Replaceable seat (angle pattern)

316 SS/A479 with silver-plated threads

Lubricant

Copper/molybdenum disulfide

Wetted components listed in italics.

System Pressure, psig

Testing

Every Swagelok high-pressure needle valve is factory tested with water up to its maximum pressure rating to a requirement of no detectable leakage at the seat and packing. Leak testing with gas is available; see page 1236.

MEDIUMAND HIGHPRESSURE

1234 Medium- and High-Pressure

Ordering Information and Dimensions

Dimensions, in inches (millimeters), are for reference only and are subject to change.

3.00 (76.2)

3.00 (76.2)

10-32 straight

thread

0.28 (7.1)

L body thickness

1.38 (35.1)

H open

0.63 (16.0)

C

10-32 straight

thread

0.28 (7.1)

L body thickness

1.38 (35.1)

H open

0.63 (16.0)

1.40 (35.6)

C

B

B

Straight Pattern

Straight thread high-pressure female, female NPT, or mediumpressure end connections

B

B

Angle Pattern

Straight thread high-pressure female or female NPT end connections

Valve Size in.

1/4

3/8

9/16

1/4 3/8 9/16

End Connection

1/4 in. female NPT 9/16-18 straight thread 1/4 in. mediumpressure fitting 3/4-16 straight thread 3/8 in. mediumpressure fitting 1 1/8-12 straight thread 1/2 in. mediumpressure fitting

1/4 in. female NPT

9/16-18 straight thread

3/4-16 straight thread

1 1/8-12 straight thread

Ordering Number

Series Cv

Straight Pattern

Dimensions, in. (mm)

Orifice B

C

H

SS-410-FP SS-445-FP SS-445-FK4

410 445 0.12 445

1.07 (27.2)

1.56 (39.6)

2.02 (51.3)

4.91 (125)

SS-645-FP SS-645-FK6 SS-945-FP SS-945-FK8

645

0.093 1.39 (2.4) (35.3)

2.27

5.16

645

1.99 (57.7) (131) (50.5)

0.14

945

1.39 (35.3) 2.58 5.47

945

2.08 (65.5) (139) (52.8)

Angle Pattern

SS-410-FPAR SS-445-FPAR SS-645-FPAR SS-945-FPAR

410

2.27 5.47 (57.7) (139)

0.15

445

2.02 4.91 0.093 1.39 (51.3) (125)

645

(2.4) (35.3) 2.27 5.16 (57.7) (131)

0.19

945

2.58 5.47 (65.5) (139)

L

1.03 (26.2)

1.03 (26.2)

1.52 (38.6)

1.03 (26.2) 1.03 (26.2) 1.52 (38.6)

MEDIUMAND HIGHPRESSURE

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