- Catalogs
- Galli & Cassina S.p.A.
- PRESSURE BALANCED DB & B LUBRICATED PLUG VALVES API 6D & API 6A
PRESSURE BALANCED DB & B LUBRICATED PLUG VALVES API 6D & API 6A
PRESSURE BALANCED DB & B LUBRICATED PLUG VALVES API 6D & API 6A
Galli & Cassina, founded in 1919, is a prominent Italian manufacturer of lubricated plug valves. Initially focused on domestic and industrial valves, the company shifted to the chemical industry, becoming Italy's first producer of stainless steel valves. In 1991, they relocated to a modern facility in Solaro, Milan, to support growth. With over 30 years of experience in chemical valves, they expanded into the Oil & Gas sector, becoming a global key supplier. Their quality assurance system is ISO 9001 certified, and they hold API 6D and 6A certifications.
The document describes Galli & Cassina's Double Block & Bleed Plug Valves, which comply with API-6D standards. These valves address leakage issues by eliminating conventional seats and are suitable for severe conditions in the Oil & Gas sector, ensuring zero leakage at maximum differential pressure. They are available in materials like Stellite, Inconel, and Tungsten Carbide to combat corrosion and erosion.
The document includes a product identification system, material selection guide, and applicable standards. It details the pressure balance system that reduces valve torque and prevents plug seizure. The valves are designed for pressure classes from ANSI Class 150 to 2500 and API 6A ratings from 2000 to 15000.
Materials are chosen based on service conditions, including standard carbon steel, low-temperature carbon steel, and materials for sour service and seawater applications. Special materials like Nickel-Chromium-Iron alloy and Titanium are used for abrasive/corrosive services.
The valves comply with international standards, including API, ASME/ANSI, BS, and NACE, ensuring rigorous quality and safety for various applications, particularly in energy transportation pipelines.
Galli & Cassina's quality assurance program is robust, with certifications from Lloyd's Register and the American Petroleum Institute. The company emphasizes continuous improvement and customer communication regarding product modifications.
Galli & Cassina's antifriction treatment on plug surfaces is tested for durability after 30,000 cycles. Carbon steel plugs undergo case hardening to enhance surface hardness while maintaining mechanical properties. The antifriction treatment provides low friction, low torque, wear resistance, and seizure resistance.
Plugs are available with or without PTFE antifriction treatment.
The document provides detailed dimensional data for ANSI Classes 150, 300, 600, 900, 1500, and 2500, including face-to-face dimensions, flange diameters, and thicknesses. It also includes specifications for API 6A classes.
Pressure test tables are provided in accordance with API 598 and API 6D standards, detailing hydraulic and seat test pressures for various ASME B16.34 group materials.
Galli & Cassina offers comprehensive customer service, including after-sales support, spare parts supply, training programs, and final documentation.
Plug valves can be equipped with automatic lubricant pumps, available in electric or pneumatic types, suitable for operating temperatures from -20 to 40°C. Various types of Climax lubricant grease are available, and Galli & Cassina provides guidance on selecting the appropriate lubricant.
This high-pressure handgun is designed for servicing plug valves, featuring a self-priming mechanism and a CLIMAX 1699 Button Head Coupler. It includes a by-pass valve to relieve pressure and an optional 15000 psi gauge to prevent damage from over-pumping.
The document outlines the chemical compositions and mechanical properties of various steel grades used in industrial applications. Key elements include carbon, chromium, molybdenum, nickel, and others, with specific ranges provided for each grade. Mechanical properties such as tensile strength, yield strength, and elongation are also specified.
Several steel grades are listed, including A 193 B7, A 193 B16, A 320 L43, and others, each with distinct chemical compositions and mechanical requirements. These specifications are crucial for ensuring the materials meet the necessary performance standards in their respective applications.
The document provides detailed mechanical properties for different materials, including tensile strength, yield strength, and elongation percentages. These properties are essential for determining the suitability of materials for specific industrial uses.
Information on valve testing and pressure ratings is provided, with references to API standards. The document specifies the size and pressure ratings for test valves, which are critical for ensuring safety and performance in high-pressure environments.
Galli & Cassina is highlighted as a key player in the production of plug valves used in hydrocarbon plants and gas pipelines worldwide. The company emphasizes its commitment to customer satisfaction and provides contact information for further inquiries.
Catalog excerpts
DOUBLE BLOCK & BLEED PLUG VALVES
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Galli&Cassina is a prominent Italian Company mainly involved in the manufacture of a complete range of Lubricated Plug Valves. The company is located in Solaro near Milan (Italy) with extensive offices and workshop covering Galli&Cassina was established in 1919, and it is one of the oldest Italian companies still involved in the manufacturing of valves. At this early stage the business activity was concentrated in the production of valves for domestic and industrial purposes. After the first ten years the company gradually directed its production towards the newly born Chemical industry; it was...
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covers most of the continents with a leading and growing presence in Europe, Middle East, North & South America and Far East resulting in a sales and service networkwith subsidiaries, branch offices and distributors, acquiring a reputation on high quality workmanship as well as on the reliability of its products. Special care is due to the development in every aspect of the Company’s management, complying with the continuous changes, requested by the evolution of the International markets. The proved technical, productive, and financial capabilities combined with the experience of human resources...
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Climax Lubricants22 Fire Safe Test & Available test23 Temperature Conversion Table24 Pressure/Temperature Rating 25 Company Profile Galli&Cassina Products Product Identification System6 Special Features Coating overlay7 Material Selection Guide 8 Plug PTFE Antifriction Treatment Special Features Coating & Overlay10 ANSI Class 150 (PN 20)11 ANSI Class 300 (PN 50)12 ANSI Class 600 (PN 100)13 ANSI Class 900 (PN 150)14 ANSI Class 1500 (PN 250)15 ANSI Class 2500 (PN 420)16 API 6A-2000-3000-5000-1000017 Hydraulic Pressure Test Duration 18 and Pressure Test Tables in Accordance with API598...
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Double Block & Bleed Plug Valve Three -dimensional CAD system and the Finite Element Modelling allow the optimization of every step of valve’s design: • FEM stress calculation of the pressure containing parts (A) • Raw Casting design • Final Assembly Design Ch
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Introduction Galli & Cassina is proud to announce a NEW DOUBLE BLOCK & BLEED plug valve series. The addition of this API-6D compliant design is another major contribution Galli & Cassina’s Plug valve line. The Double Block and Bleed valves present similar features as the Galli & Cassina “Single Plug” series. These are marketed with Reduced or Full bore, full conduit, pig-able design. All plug valves are with Standard or Pressure balanced plugs. The Double Block and Bleed valve is developed to meet the industry demand for an alternate to other design where the service often develop problems with...
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Standard Features: the Pressure Balance System UPPER HOLE LOWER HOLE The operating system of Pressure Balanced Plug Valves (shown in Fig.A) consist in the pressure equalization between the port area and the top/bottom of the plug with two holes. The upper hole connects the plug port area with the top of the plug, while the lower maintains the pressure equalization between the port area and the bottom of the plug. The Pressure Balance System ensure line pressure acts on the plug to reduce the valve torque and avoid the possibility of plug seizure, even after a prolonged time in the open or closed position. The...
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Material Selection Guide for GALLI & CASSINA Valves Trim materials are designed according to the service conditions. 1 Standard Carbon Steel Body and Plug. (ASTM-A216 WCB/WCC material) suitable for general services. 2 Carbon Steel Body and Plug (A352 LCB/LCC material) suitable for low temperature services. 3 Carbon Steel Body and Plug (ASTM A216WCB/WCC material) suitable for “SOUR SERVICE”(H2S and CO2) according to NACE-MR.01.75/Latest Edition. 4 Special Austenitic (6MO) and Ferritic-Austenitic Stainless Steel (Duplex and Superduplex) suitable for sea water and corrosive services. 5 Nickel-Chromium-Iron...
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Applicable Standard-Specification Lubricated Plug Valves are designed to use with most refining services according to API 599 or BS 5353 norms whichever is applicable. API 6D norm aims to standardize the materials as well as instructions to manufacture valves suitable for energy transportation in the pipelines. Specification for wellhead BS 1504 and christmas tree equipment. Specification for Steel Casting for Pressure Purposes. Specification for Pipeline BS 2080 Face to Face - Centre to Face - End to End - Steell Valves. BS 5353 BS 6755 part 1 BS 6755 part 2 CSA Z 245. 15 MSS-SP6 MSS-SP25 MSS-SP44 MSS-SP53 MSS-SP54 MSS-SP55 MSS-SP61 NACE...
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Standard Features: Plug PTFE Antifriction Treatment Carbon Steel plugs are subjected to the following treatments: A) Case hardening. B) Antifriction treatment. The case hardening has the purpose to increase only the hardness of the plug surface which is subjected to wearing, keeping at the same time the mechanical properties of the base material unchanged. Consequently the base material has more toughness and resistance against impacts. The Antifriction treatment is basically carried out on the plug to obtain the following advantages: Low friction between plug and body. Low torque. Wear resistance. Resistance...
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Top of Stem to Center Line E 180 220 240 250 ----- - - Center Line Valve to CL OperatorT - - - 280 320 370 420 420 420 450 500 Lenght of Wrench L 450 500 750 - -- -- -- - Size of Bleed Connection MSS SP 45 1/2” 1/2” 1/2” 1/2” 3/4” 3/4” 3/4” 1” 1” 1” 1” Other size upon request CORPORATE CtKiu
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Center Line Valve to CL OperatorT - - - - 330 370 430 445 450 490 540 Lenght of Wrench L 500 750 750 - -- -- -- - Size of Bleed Connection MSS SP 451/2” 1/2” 1/2” 1/2” 3/4” 3/4” 3/4” 1” 1” 1” 1” Face to face not in accordance with API 6D - ASME B16.10 Other size upon request
Open the catalog to page 12All Galli & Cassina S.p.A. catalogs and technical brochures
- Manual valve
- Control valve
- Pneumatic valve
- Regulating valve
- Flange valve
- On/off valve
- Valve with handwheel
- Pneumatically-operated valve
- Piston actuator valve
- Valve for the chemical industry
- Hydraulic valve
- ANSI valve
- 2-channel valve
- Seat valve
- Electrically-actuated valve
- 3-way valve
- PTFE valve
- Metal valve
- Hydraulically-operated valve