midland safety valve price

An alcohol evaporator is an automatic vaporizing device for keeping air lines and air reservoirs free of ice in harsh weather conditions. Steam cleaning will not injure the unit. The A72420 or AE72420 is pressure protected and very easy to install. The safety valve is included with the unit.

Midland manufacturing is committed to continually supply the most durable and reliable valves and level measurement devices for the railroad, marine barge and ISO container markets.

They offer the broadest range of products amongst all tank-car-fitting suppliers on the planet. Its team of engineering specialists and technical-service professionals continually develops innovative products for any application in partnership with its customers and industry associations. Because of this approach, Midland products are recognized worldwide for performance, reliability and quality.

Midland Pressure Relief Valves offer performance, reliability and flexibility of use in one easy to maintain, reliable product design. Interior and exterior valve body designs are available in every DOT pressure rating, from 75 psig to 165 psig, and flow rates up to 35,608 scfm. Midland provides the appropriate valve to meet your application needs.

Genuine Midland Haldex Safety Valve brake parts P/N: 47190361, we offer the best service in the industry with years of expert knowledge! Call us if you have questions.

P/N: A-1000, Rev. 3.2 Issue Date: April 10, 2018 Supersedes: A-1000, Rev. 3.1 Internal-Style Pressure Relief Valve A-1000 Series Installation, Operation & Maintenance (IOM) Manual Manual content is subject to change. Visit www.midlandmfg.com for latest manual revision and revision history.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. CAUTION: Incorrect Spring Setting. Never adjust the spring compression of a valve while it is mounted on the vessel cover plate or incorrect settings may result. CAUTION CAUTION: Valve/Seat Damage.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. CAUTION: Field Repair. The repair procedure for leaking valves in the field is intended only as a temporary repair to get the car to an unloading destination. Once the product is unloaded and pressure is relieved, the valve should be removed for a complete inspection and requalification.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. A-1075 THRU A-1450 STAINLESS TRIM A-1079 THRU A-1379 STAINLESS STEEL ITEM QTY. PART NAME MATERIAL PART NO. MATERIAL PART NO. TOP GUIDE STEEL W/SS INSERT...

4322 10-300-AS 12-330-SS A-1375 4220 10-375-AS 12-375-SS A-1450 4705 10-450-AS 12-450-SS Table 2-3 A-1075 Thru A-1450 Stainless-Steel Trim Model Specifications – Tongue-and-Groove Series A-1079 THRU A-1379 STAINLESS-STEEL VALVE PART NO. PRESSURE SETTING FLOW RATE SPRING NAMEPLATE (PSIG) (SCFM-AIR) PART NO.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. A-1079-F THRU A-1379-F STAINLESS A-1075-F THRU A-1450-F STAINLESS TRIM STEEL ITEM QTY. PART NAME MATERIAL PART NO. MATERIAL PART NO. TOP GUIDE STEEL W/SS INSERT...

4322 10-300-AS 12-330-SS A-1375-F 4220 10-375-AS 12-375-SS A-1450-F 4705 10-450-AS 12-450-SS Table 2-7 A-1075-F Thru A-1450-F Stainless-Steel Trim Model Specifications – Flat-Face Series A-1079-F THRU A-1379-F STAINLESS-STEEL VALVE PART NO. PRESSURE SETTING FLOW RATE SPRING NAMEPLATE (PSIG) (SCFM-AIR) PART NO.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 3.1.5 For tongue-and-groove mountings, examine the sides of the groove. The valve tongue fits tightly into the groove, any peening-over of the edges of the groove may make it difficult to properly fit the valve tongue into the groove.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 4.1.1 Remove the seal wires (item 16) from the top-guide studs (items 14 and 14A). Figure 4-1 Remove Wire Seal 4.1.2 Remove the four (4) nuts (item 15) securing the top guide (item 1) to the valve body (item 4).

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 4.1.5 Loosen the top locknut (item 8) with a wrench on the stem (item 2) while holding the retainer in place (item 3) with another wrench. TIP: •...

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 4.1.9 Clean and lubricate the stem thread. Inspect threads for any sign of excessive wear, corrosion, pitting or other defects. If any are found, the part is rejectable and should be replaced.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 4.1.12 Using a press yoke having a cutaway as shown, compress the valve spring enough to allow removal of the adjustment nut (item 12) while taking care to support the valve stem.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 4.1.16 Remove the spring follower (item 6). Figure 4-14 Remove Spring Follower 4.1.17 Remove the valve spring (item 5) from the guide tube. Figure 4-15 Remove Spring 4.1.18 Remove the valve stem (item 2) .

WARNING NOTICE: Valve stems of this Midland series are machined from raw forgings. In cutting forging stock to length, the end of the bar may contain surfaces imperfections caused by the cutting tool. The end imperfections may be retained on a finished part and potentially provide false indications when using a magnetic particle or flourescent penetrant inspection.

NOTICE: Total valve-stem runout can be checked using a uni-level concentricity fixture and gauge (not supplied by Midland). For this or any other devices used to measure runout, refer to your company’s or to your specific instrument’s IOM for proper use instructions.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. WARNING: Machining Not Allowed. Without the consent of the manufacturer or car owner, machining, grinding, welding or other alterations to the valve seat or stem seat is not allowed per AAR M1002, Paragraph A3.11.1 of the Tank-Car Specifications.

For Aluminum-Clad Springs: Aluminum-clad springs cannot be inspected by magnetic-particle or dye-penetration methods. No peeling or flaking of the aluminum coating is permissible. If such defects exist, contact Midland for repair or replacement. It is typically more cost-effective to replace a spring Figure 4-23 Spring Inspection having damaged aluminum cladding rather than re-cladding the spring.

An O-ring that fits loosely in the cap, or can only be pushed into the O-ring retainer with difficulty, is quite likely not the correct size. Many of Midland’s O-rings are made on special molds to non-standard Figure 4-26 Elastomer Inspection sizes and are obtainable only from Midland.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 4.3.4 Insert the stem assembly into the top guide (item 1). Figure 4-30 Assemble Top Guide and Stem Assembly 4.3.5 Mate the top guide (item 1) and the body (item 4), aligning holes with the studs.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 4.3.8 Place the spring follower (item 6) onto the stem (item 2) of the stem, spring, and spring guide assembly. 4.3.9 Manually install the stem adjustment nut (item 12) to hold the follower to the stem (item 2).

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 4.3.14 Screw the top locknut (item 8) onto the stem (item 2). Figure 4-37 Install Top Locknut 4.3.15 While holding the retainer (item 3), tighten the top locknut (8) using a torque wrench calibrated to ft-lb.

4.4.3.5 Record the values. NOTICE: If the test results are erratic, troubleshooting is more complex. Consult your supervising engineer or a Midland Manufacturing representative. NOTICE 4.4.3.6 When the test results are acceptable, tighten the bottom locknut (item 13) to torque at 85–95 ft-lb.

STD tolerance range. Refer to Table 4-2 Start-To-Discharge (STD) and Vapor-Tight Pressure (VTP) Settings 4.5.8 If the test results are erratic, troubleshooting is more complex. Consult your supervising engineer or a Midland representative. 4.5.9 When the test results are acceptable, tighten the locknut (item 13) to torque at 85–95 ft-lb.

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 5.1.2 Then, remove the four (4) top guide nuts (items 15) and store them so they won’t be dropped or lost. TIP: Use a 3/4” wrench to remove the top guide nuts (item 15). Figure 5-2 Remove Bolts and Set Aside 5.1.3...

Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 5.1.5 Replace the retainer (item 3). Figure 5-5 Replace Retainer 5.1.6 Insert (2) O-rings (items 10 and 11) into the retainer (item 3). Figure 5-6 Insert O-Rings 5.1.7 Place the retainer (item 3) with the seat O-ring assembly onto the stem (item 2) so that it rests squarely on the valve assembly.

CAUTION: Do not look directly down into the the valve, debris may discharge upwards. CAUTION NOTICE: If the test results are erratic, troubleshooting is more complex. Consult your surpervising engineer or a Midland Maufacturing representative. NOTICE A-1000, Rev. 3.2 Page 39 of 42...