LLC “Oil & gas equipment factory” started to produce parallel-slide valves meeting the requirements of Russian and international standards. Parallel-slide valves are used in construction of main pipelines and pipelines with diameter from 300 to 1200 mm, designed for work under pressure from 1,6 to 16,0 MPa for oil and oil products as a lock-up device for operating environment flow blockage in main pipelines and in oil-products pipelines, in technological plans of pumping stations and tank batteries with operating environment temperature from -15°C to +80°C.
Parallel slide valves work well in practice on main pipelines and other oil and oil products pumping processing trains. The construction of the parallel slide valve is focused on optimization of maintainability which allows minimizing material costs and time spending on medium repairs without cutting of body frame out of pipeline. Full-opening parallel-slide valve allows cleaning units and diagnostic devices get through it.
As against analogues, the parallel-slide valve provides leak-proofness of the flap by both entering and outgoing sides. At that construction of the product ensures off-loading of the interior of the parallel-slide valve when pressure in it increases out of control more than operating environment pressure at inlet side.
The factory produces parallel-slide valves with electric drive control and manually operated for underground and ground-based installation.
It is possible to complete the parallel slide valves with electric drives of different manufacturers.
It has butt-welding or flanged connection to the pipeline. It is possible to produce the parallel-slide valve suitable for the pipe size mentioned by the customer.
There are doubtless advantage of parallel-slide valves — low flow friction characteristics (0,1), which is equal to resistance head. The possibility of flap self-locking when temperature drops is reduced to zero. “Soft” packing-off minimizes possibility of flap scoring and as a result increases durability of the product without loss of leak-proofness.
Leak-proofness: Leak-proofness grade “A” in accordance with GOST standard 9544-2005.
Climatic category: category is in accordance with GOST standard 15150-69
- (U) (environmental temperature from -45°C to +50°C);
- (HL) (environmental temperature from -60°C to +40°C);
|cover||steel 20, 20L for U1 09G2S,
20GML, 20GSL for HL1
|Body frame||Steel 20, 20L for U1 09G2S,
20GML, 20GSL for HL1
|Spindle rod||Steel 20H13|
|Sliding valve||Steel 40,45 + Cr 30 мкм|
Production.The production is carried out in accordance with Technical specifications 3741-105-94723130-2009.
Orders and delivery. At the Customer’s request parallel-slide valves can be delivered with counter-flanges in accordance with GOST standard12821-80 or without them. It is possible to produce counter-flanges and other parts of parallel-slide valves different from serial manufacturing.
In requests and orders it is necessary to indicate the full name of the product, rated diameter of rated pipeline passage, schedule pressure, operating environment, operating environment temperature, climatic category, type of connection to pipeline, control type, necessity of electric drive and counterparts delivery, as well as spare parts, tools and accessories.