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VALVES & FITTINGS

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Brass Gate Valves Cast Iron Gate Valves Cast Steel Gate Valves Forged Steel Gate Valves Stainless Steel Gate Valves Rising Stem Gate Valves Non-rising Stem Gate Valves Double Disk Parallel Gas Gate Valves Knife Gate Valves Bellows Sealed Gate Valves

Globe Valves

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Cast Iron Globe Valves Cast Steel Globe Valves Forged Steel Globe Valves Stainless Steel Globe Valves Brass Globe Valves

Butterfly Valves

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Wafer Type Butterfly Valves Flange Type Butterfly Valves Eccentric Butterfly Valves Lug Type Butterfly Valves

Check Valves

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Cast Steel Check Valves Cast Iron Check Valves Stainless Steel Check Valves Brass Check Valves Lift Check Valves Swing Check Valves Forged Steel Check Valves

Ball Valves

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Cast Iron Ball Valves Cast Steel Ball Valves Stainless Steel Ball Valves Brass Ball Valves Fully Welded Ball Valves Electric Ball Valves Ceramic Core Ball Valves Multiport Ball Valves Rotary Valves Top Entry Ball Valves Floating Ball Valves High Pressure Ball Valves High Temperature Ball Valves V-port Ball Valves

Control Valves

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Globe Control Valves

Plug Valves

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Cast Iron Plug Valves

Regulating Valves

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Cast Iron Regulating Valves

Balance Valves

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Cast Iron Butterfly Balance Valve Cast Iron Internal Thread Globe Balance Valve Brass Balance Valve Number-lock Balance Valve

Safety Valves

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Closed Spring Loaded Full Bore Type Safety Valve Closed Spring Loaded Low Lift Type Safety Valve High Temperature And High Pressure Safety Valve Pilot Operated Safety Valve Spring Full Bore Type Safety Valve With Radiator Spring Full Bore Type With Lever Safety Valve Spring Loaded Low Lift External Thread Type Safety Valve Spring Loaded Low Lift Type Safety Valve Spring Loaded Low Lift Type With Lever Safety Valve Stainless Steel Spring Loaded Full Bore Type Safety Valve With Handle Twin Spring Type Safety Valve

Instrument Valves

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Needle Valves Other Valves

LNG Cryogenic Valves & Accessories

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LNG Filling Nozzle Cryogenic Gas Return Nozzle Cryogenic Gas Refueling Receptacle Cryogenic Gas Relief Valve Cryogenic Gas Shut-off Valve Cryogenic Gas Breakaway Coupling Cryogenic Gas Pressure Regulator Cryogenic Gas Check Valve

Pipeline Filters

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Cast Iron Filter Cast Steel Filter Stainless Steel Filter Brass Filter

Pipeline & Fittings

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Fittings

Flanges

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Blind Flange Lap Joint Flange Long Welding Neck Flange Slip-on Flange Socket Welding Flange Threaded Flange Welding Neck Flange Plate Flange Spectacle Blind Orifice Flange Tube Sheet Anchor Flange Swivel Flange Reducing Flange Loose Flange

Customization

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Two Way Distributing Valve Rotary Discharge Valve

Safety Valves' Installation Preparation

Before the safety valve installation, we should check its structure and make sure its performance can be fully developed. In general, the structure for safety valve mainly shows in below items:

1. Make sure the safety valve keep in opening station. That is, the pipeline is heated first and the heat is transferred from pipeline to valve, so as to avoid prolonged heating of the valve itself.

2. If the safety valve allows the flux-coated part to stand upright, the moisture in the flux will be evaporated, at this time the dry flux maybe fall off, cause the exposed metal to oxidation. So it's required when connecting and assembling, the pipeline should be inserted into the pipe sleeve until it is blocked.

3. When assembling the safety valve should have stable support to make sure it is in a straight position during the brazing operation.

4. In order to keep normal temperature on all areas, should set up two welding guns. That is, the pipeline is heated first, then heating the connected parts by the acetylene flame.

5. Select the right amount of solder. If the solder is too much will cause some solder flow through the pipeline's blocking part, then blocking the sealing area; if the solder is too little, will not meet the installation requirement, then cause the failure of safety valve's installation. If used linear solder, use 3/4 solder for the valve with normal diameter 3/4''.

6. Threaded connection. If hard slag and dirt are not cleaned in time, will cause their continuous accumulation in the pipeline, so directly affects the work efficiency of the safety valve, then many works can not be developed normally. Therefore, clean the pipeline with air or steam in time to avoid the hard slag and dirt accumulation. At the same time, use as little pipe adhesive as possible on pipe threads and never use pipe adhesive on valve threads. In addition, do not let the pipe adhesive into the valve body to avoid damage to the disc and seat.

7. Before valve's installation, must cut off the flow to ensure valve works properly. At the same time, close the valve completely.

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