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172-65203MA-02 (A-BD2) 21 Apr 2010

Options

When operating the blowdown valve, stand to the side well clear of the

outlet to avoid contact with internal fluids that will be discharged. Failure

to do so may result in burns or other injury.

CAUTION

Do not use excessive force when opening the blowdown valve. Such

force may break the pin equipped as a valve stopper pin, causing a

blowout from internal pressure resulting in burns or other injury.

CAUTION

With Blowdown Valve (TLV BD2)

Configuration

TLV Blowdown Valve: BD2

The BD2 Blowdown Valve, installed in the screen area of the body, uses the

trap’s internal pressure to blow any condensate, steam, dirt or scale
accumulated around the screen area out to atmosphere.

Discharge Hole

BD2 Valve

BD2 Valve Seat
(Screen Holder)

Screen Holder Gasket

Valve Stopper Pin

Screen

Содержание A46S

Страница 1: ...3MA 02 A Series BD2 21 April 2010 Thermodyne Steam Trap A46S A46SW A65S Copyright 2010 by TLV CO LTD All rights reserved ISO 9001 ISO 14001 Manufacturer Kakogawa Japan is approved by LRQA LTD to ISO 9001 14001 ...

Страница 2: ...ch allows the quick automatic discharge of large quantities of initial air and cold condensate immediately after operation start up thereby greatly reducing start up time It also reacts with great sensitivity to the inflow of large quantities of condensate and hot air during operation preventing air binding The Thermodyne Steam Trap with its superior features listed above in combination with the p...

Страница 3: ...icates that there is a potential threat of death or serious injury CAUTION Indicates that there is a possibility of injury or equipment product damage CAUTION Install properly and DO NOT use this product outside the recommended operating pressure temperature and other specification ranges Improper use may result in such hazards as damage to the product or malfunctions that may lead to serious acci...

Страница 4: ...scharge which may cause burns or other injury Use only under conditions in which no freeze up will occur Freezing may damage the product leading to fluid discharge which may cause burns or other injury Use only under conditions in which no water hammer will occur The impact of water hammer may damage the product leading to fluid discharge which may cause burns or other injury ...

Страница 5: ...LV CK been installed 4 Is the inlet pipe as short as possible with as few bends as possible and installed so the liquid will flow naturally down into the trap 5 Has the piping work been done with the proper methods shown in the figures below Requirement Correct Incorrect Install catchpot with the proper diameter Diameter is too small Make sure the flow of condensate is not obstructed Diameter is t...

Страница 6: ...ischarge which may cause burns or other injury CAUTION Refer to the product nameplate for detailed specifications Maximum allowable pressure PMA and maximum allowable temperature TMA are PRESSURE SHELL DESIGN CONDITIONS NOT OPERATING CONDITIONS TAG NO is displayed for products with options This item is omitted from the nameplate when there are no options Configuration No Name Maintenance Kit Repai...

Страница 7: ... rapid flow of steam creates a low pressure region under the disc which suctions it onto the seat The pressure chamber above the disc becomes a high pressure region when entering steam is compressed This difference in the pressures above and below the disc gives the closed valve a tight seal 3 Condensate Discharge When condensate enters the trap the temperature in the pressure chamber drops causin...

Страница 8: ...m before welding Installation inspection maintenance repairs disassembly adjustment and valve opening closing should be carried out only by trained maintenance personnel 1 Before installation be sure to remove all protective seals 2 Before installing the trap blow out the inlet piping to remove any piping scraps dirt and oil Close the inlet valve after blowdown 3 Install the trap so the arrow on t...

Страница 9: ...l Condensate is discharged intermittently together with flash steam and the sound of flow can be heard Blocked Discharge Impossible No condensate is discharged The trap is quiet and makes no noise and the surface temperature of the trap is low Blowing Live steam continually flows from the outlet and there is a continuous metallic sound Steam Leakage Live steam is discharged through the trap outlet...

Страница 10: ...lt the table of tightening torques and tighten to the proper torque Disc Remove being careful not to scratch the lapped surface Make sure that the seat surface lapped side with groove is facing down toward the valve seat see Figure B Disc Holder Ring Remove without bending Set on the air vent ring and make sure that it does not sit on the valve seat surface Air Vent Ring Remove without bending as ...

Страница 11: ...t lb mm in A46S A65S 250 185 46 113 16 100 73 30 13 16 A46SW 320 235 50 2 100 73 30 13 16 NOTE Be sure to coat threads with anti seize 1 N m 10 kg cm Exploded View Asterisked parts make up the valve seat unit Nameplate Cap Inner Cover Disc Disc Holder Ring Air Vent Ring Valve Seat Outer Module Gasket Inner Module Gasket Body Screen Holder Screen Screen Holder Gasket Valve Seat Unit ...

Страница 12: ...e is poor blocked Check to see if the trap operating pressure exceeds the maximum specified pressure or whether there is insufficient pressure differential between the trap inlet and outlet Compare specifications and actual operating conditions Check to see if there is rust or scale on the disc or on the module valve seat Clean parts Check the disc and the module valve seat for damage or wear Repl...

Страница 13: ...mproper installation use handling etc by other than TLV CO LTD authorized service representatives 2 Malfunctions due to dirt scale rust etc 3 Malfunctions due to improper disassembly and reassembly or inadequate inspection and maintenance by other than TLV CO LTD authorized service representatives 4 Malfunctions due to disasters or forces of nature 5 Accidents or malfunctions due to any other caus...

Страница 14: ...lve Such force may break the pin equipped as a valve stopper pin causing a blowout from internal pressure resulting in burns or other injury CAUTION With Blowdown Valve TLV BD2 Configuration TLV Blowdown Valve BD2 The BD2 Blowdown Valve installed in the screen area of the body uses the trap s internal pressure to blow any condensate steam dirt or scale accumulated around the screen area out to atm...

Страница 15: ...cate the blow outlet and during operation stand to the side and well clear of it as the jet of condensate or steam could cause burns 2 Remain in the area the entire time the BD2 valve is in the open position Before opening the BD2 valve grip the BD2 valve seat with a wrench and hold firmly in place so that it will not rotate when the BD2 valve is loosened Grip the BD2 valve with another wrench and...

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