RAM Company USA Products Line

Size: px

Start display at page:

Download "RAM Company USA Products Line"

Kathryn Blankenship
6 years ago
Views:

1 RAM Company USA Products Line Trunnion Mounted Ball Valves Metal Seated Ball Valve 3-Way Ball Valve Jacket Ball Valve Ball Valves with Actuator

Trunnion Mounted Ball Valves Main Features DOUBLE PISTON EFFECT The seat rings may be modified to perform the DOUBLE PISTON EFFECT on customer's requirement.

This design feature allowed an additional sealing function, but to release the possible over pressure developed in the body cavity it is necessary to use a safety relief valve on the body.

2 Trunnion Mounted Ball Valves Main Features DOUBLE PISTON EFFECT The seat rings may be modified to perform the DOUBLE PISTON EFFECT on customer's requirement. In this case, the pressure acting on both the external and internal side of the seat rings push them against the ball. Therefore each seat grants the required tightness. This design feature allowed an additional sealing function, but to release the possible over pressure developed in the body cavity it is necessary to use a safety relief valve on the body. STEM SEALING The perfect sealing is granted by the use, as a standard feature, of the two O-rings and a graphite gasket retained by stem cover. The graphite gasket can be changed with the valve in line and the ball in any position, but this is done after having release pressure between upper O-ring and graphite gasket. The stem seals can be replaced with the valve under pressure and the ball in fully closed or fully opened position and the pressure in the body cavity has been completely released. BODY SEALING Two O-rings and graphite gaskets placed at joins of the body components guarantee zero leakage.

Trunnion Mounted Ball Valves Main Features FLOATING SEAT WITH FIRE SAFE DESIGN Independent floating seat rings assure the required bi-directional tightness at every pressure in the pressure range of

the seat rings will move to the ball by compression on springs and fluid, then temporary sealing surface is provided by metal to metal contact between the ball and seat rings(metal seal surface are

3 Trunnion Mounted Ball Valves Main Features FLOATING SEAT WITH FIRE SAFE DESIGN Independent floating seat rings assure the required bi-directional tightness at every pressure in the pressure range of the valve. The seat rings are spring loaded to greant the required tightness even at very low pressure. If the seats are destroyed by abnormal heating in an emergency such as a fire etc. the seat rings will move to the ball by compression on springs and fluid, then temporary sealing surface is provided by metal to metal contact between the ball and seat rings(metal seal surface are mechanized for the seat rings), and the amount of leakage will be minimized. This conformes to API607 fire safe requirements. SINGLE PISTON EFFECT WITH PRESSURE SELF- RELIEF Foe the RAM Valve USA standard trunnion mounted ball valve, each seat ring performs the SINGLE PISTON EFFECT. Under such circumstance the pressure acting on the seat rings force pushing the seat to the ball. When the pressure is s applied on the external side of the seat rings the required tightness is granted. Should the pressure of the fluid inside the valve body exceeds the line pressure, the force which acts on the seat rings by the cavity fluid does eliminate the spring elasticity and the fluid so that make the eat clearance between the seats and ball. Upon such clearance, seats provide automatic pressure relief from the body cavity to the pipeline.

Trunnion Mounted Ball Valves Main Features EMERGENCY SEAL RECOVERY When leakage occurs at the seat and gland due to damage, leaks from the seal can be temporarily stopped

The sealing action of one O-ring or NPT only and one ball inside is the standard feature of the emergency sealant, but with two O-rings and two balls inside available

ACTUATION RAM Company USA trunnion mounted ball valves are designed to be operated by manual operators such as wrench or gear operator, the use of wrench is limited to

4 Trunnion Mounted Ball Valves Main Features EMERGENCY SEAL RECOVERY When leakage occurs at the seat and gland due to damage, leaks from the seal can be temporarily stopped by injection of sealant into the secondary seal system. The sealing action of one O-ring or NPT only and one ball inside is the standard feature of the emergency sealant, but with two O-rings and two balls inside available also on customer's requirement. ACTUATION RAM Company USA trunnion mounted ball valves are designed to be operated by manual operators such as wrench or gear operator, the use of wrench is limited to bore size and pressure class equal or smaller than: 6" -CLASS 150LB 6" -CLASS 300LB 4" -CLASS 400LB 4" -CLASS 600 LB 2" -CLASS 900LB 2" -CLASS 1500LB For valves which operated by wrench can also be changed to gear operator on customer;s requirement. Actuators of valves can be supplies with Electric actuator, Pneumatic actuators and Gas over oil actuators. Gear operators can be easily removed in service and replaced by actuator.

5 RAM COMPANY USA W HEN T HE OTHERS D ON T M EASURE U P In traditional trunnion ball valve design, the stem takes almost all of the force caused by the line pressure, and then friction that is generated by this also causes the high operating torque. With our new designs, the trunnion rotates on PTFE bearings, thus minimizing the friction caused by the side thrust which comes from the line pressure on the ball.

Trunnion Mounted Ball Valves Main Features Dependable And Easy Operation The stem bearing and thrust bearing are supplied with stainless steel backed reinforced PTFE, which provide reliable strength

6 Trunnion Mounted Ball Valves Main Features Dependable And Easy Operation The stem bearing and thrust bearing are supplied with stainless steel backed reinforced PTFE, which provide reliable strength are little operation torque, assure dependable and easy operation. Anti-static Device Possible static electricity can be conducted away by the spring through the stem, body and pipe. THROUGH CONDUIT Besides a full bore, the valve fluid passage is aligned with the pipe inner diameter so as to decrease flow resistance and easy to clean pipe with a pig or sphere by passing through the pipeline. DOUBLE BLOCK & BLEED The ball with fully opened and closed, fluid is accumulated in the body cavity by the upstream and downstream seats sealing, then the contaminations can be easily drained away by the vent plug: leaks and damage to the seat can be checked in advance; packing or other gland seals can be changed under pressure.

7 Bolted Body Side Entry Forged Steel Ball Valve

8 Dimensions of Side Entry Forged Steel Trunnion

9 Bolted Body Side Entry Forged Steel Ball Valve

10 Dimensions of Side Entry Forged Steel Trunnion

11 Dimensions of Side Entry Forged Steel Trunnion

12 Dimensions of Side Entry Forged Steel Trunnion

13 Dimensions of Side Entry Forged Steel Trunnion

14 Dimensions of Side Entry Forged Steel Trunnion

15 Dimensions of Side Entry Forged Steel Trunnion

16 Technical Specification The basic standards we used during the design, manufacturing and testing of RAM Valve USA are: API: 6D-6FA Q1 BS: 5351 ANSI: B16.5-B16.10-B16.25-B16.34 ASME: Section V Section VIII Section IX MSS: SP6-SP25-SP45-SP55-SP61-SP72 NACE: MR ISO: 5211

18 How To Order Model Number Coding System ANSI RATING VALVE TYPE BODY MATERIAL TRIM MATERIAL END CONNECTION SEAT MATERIAL SEAT MATERIAL SEAL MATERIAL OPERATOR

VELAN TRUNNION-MOUNTED

VELAN TRUNNION-MOUNTED Velan s standard trunnion-mounted ball valves offer increased value by incorporating advanced design features. TRUNNION-MOUNTED BALL The ball is fixed and the seat rings are floating,